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Dr. Mark L. Koransky, FACS, MD

Accepting New Patients
(Dr. Mark Koransky, MD)
Specializes in: Surgical Oncology (Cancer Surgery)
University of California, San Francisco (UCSF), School of Medicine
Professional interests include: anal fistula, anal cancer, anorectal problems, and more.
3200 Kearney Street Building 2, Floor 2
Fremont, CA 94538

Dr. Mark L. Koransky, FACS, MD is a surgical oncologist in Fremont, CA specializing in surgical oncology (cancer surgery). He graduated from University of California, San Francisco (UCSF), School of Medicine. Dr. Mark L. Koransky, FACS, MD is affiliated with Sutter Health, SUTTER BAY MEDICAL FOUNDATION and WASHINGTON TOWNSHIP MEDICAL FOUNDATION.

View Doctor's Full Profile (510) 490-1222

Office Locations

Sutter Health

3200 Kearney Street Building 2, Floor 2
Fremont, CA 94538
(510) 490-1222
(510) 498-2614
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Some issues Dr. Mark L. Koransky, FACS, MD can help you with:

Breast Biopsy

Breast biopsy is a procedure where a small sample of tissue is collected from the breast for testing. A physician may prescribe a breast biopsy for a variety of reasons, but they are most frequently prescribed for a lump found in the breast. Biopsy samples extracted are examined by pathologists in a laboratory setting and are tested to determine if they are cancerous or benign, or indicative of some other condition. Depending on the lab results, physicians may prescribe additional treatment. Other circumstances which may prompt a breast biopsy include:

  • Mammograms that detect other unusual features in the chest, such as a cyst or calcium deposit
  • Breast scans or ultrasounds that display abnormalities
  • Nipple changes, such as scaling, crusting, or bloody discharge

Breast biopsies are collected through several different procedures and the specific type of biopsy that a patient receives depends on the size, location, and features of a breast lump or irregularity. The three main methods of collecting a breast biopsy include:

  • Fine needle aspiration (FNA biopsy), where a thin needle is directed into a breast lump or abnormality, extracting a small sample of tissue or liquid
  • Core needle biopsy (CNB biopsy), where a hollow needle is directed into a breast lump or abnormality, extracting cylinders of tissue called "cores"
  • Open (surgical) biopsy, where a breast lump is removed through an incision in the breast

Fine needle aspiration (FNA) and core needle biopsy (CNB) are sometimes image-guided, where a mammogram, ultrasound, or MRI helps direct the physician performing the needle extraction.

Fine needle aspiration, the most common biopsy method, generally requires few patient preparations. It is recommended patients avoid using lotion, deodorant, and perfume prior to their biopsy procedure. FNA biopsy is performed with local anesthesia (topical numbing cream) and typically has a quick recovery, but patients may experience soreness for a few days. Core needle biopsy extracts slightly more tissue than an FNA biopsy.

Open (surgical) biopsy is more invasive and requires general anesthesia, where patients are put to sleep during the procedure. Patients must fast prior to the surgery. After the biopsy is performed, patients are monitored in a recovery room for a time before being discharged, when they will need someone else to provide transportation.

Although some may consider breast biopsy to be a simple procedure, it can catch critical issues - particularly breast cancer - that impact wellness. If a breast biopsy reveals an underlying condition like life-threatening cancer, patients can receive the diagnosis and medical treatment that is necessary for their long-term health.

Gallbladder Removal Surgery (Cholecystectomy)

The gallbladder is a small, pear-shaped organ on the right side of the upper abdomen, underneath the liver. Its purpose is to store bile, which is used to digest fat. Occasionally, the gallbladder can develop mineral stones, called gallstones. If they are large enough, gallstones can block the ducts in the gallbladder and cause swelling and infection. Gallstones can be treated with lifestyle changes and medication, but sometimes this is not enough. In these cases, it is best to remove the gallbladder before it can cause more serious problems. The surgical removal of the gallbladder is called a cholecystectomy.

Today, most gallbladder surgeries are done laparoscopically. Four tiny incisions are made in the abdomen, and small tools are inserted through these tiny incisions to perform the surgery. Because the incisions are much smaller, recovery time is much faster with this type of surgery. Patients are usually discharged from the hospital the same day. Sometimes, open surgery is used to remove a gallbladder. In this type of surgery, a cut about six inches long is made in the upper right abdomen. After the gallbladder is removed, it is sutured or stapled closed. With open surgery, patients usually stay in the hospital for two to three days to recover before they are discharged.

Gallbladder removal, like any surgery, carries some risks, such as bleeding, infection, or the development of blood clots. Doctors will tell patients how to minimize their risk for complications. After surgery, patients are advised to avoid strenuous activity for several days. They should not soak in a bath until their sutures or staples have been removed. Patients should wash hands before touching the area around the incision. It will take a couple of days until patients feel like themselves again and a few weeks until their scar has healed and faded.

Mastectomy (Breast Removal Surgery)

Mastectomy is the surgical removal of all or part of the breasts, most frequently associated with breast cancer treatment (for both male and female breast cancer patients). Breast cancer patients who receive a mastectomy typically have undergone other treatments, such as chemotherapy, radiation, and less invasive breast-conserving surgery (lumpectomy). If these treatments are unsuccessful, oncologists may eventually prescribe a mastectomy. Other conditions that may prompt a mastectomy include:

  • Two or more cancerous regions in the same breast
  • Inability to receive chemotherapy or radiation therapy
  • High likelihood of recurring breast cancer
  • Large tumor that is bigger than two inches across
  • Pregnancy that prohibits radiation therapy
  • Preexisting conditions like lupus or scleroderma

Notably, some patients may elect to undergo mastectomy without a breast cancer diagnosis. Preventative (prophylactic) mastectomy is performed on those with a high risk of breast cancer, such as having a family history of the disease or carrying the breast cancer BRCA1 or BRCA2 gene. Preventative mastectomy substantially reduces one's chances of developing breast cancer in the future, but it cannot wholly prevent it.

Surgical oncologists perform several types of mastectomies, depending upon the severity of the breast cancer (including factors such as its location and spread), as well as the patients' own aesthetic and personal choices. The six main types of mastectomy include:

  • Total mastectomy, where the surgical oncologist removes an entire breast, including parts like the pectoral chest muscle, skin, and nipple.
  • Radical mastectomy, where the surgical oncologist removes the entire breast, underarm lymph nodes, pectoral chest muscles, and outer skin and nipple. One of the most invasive forms of mastectomy, radical mastectomy is infrequently performed.
  • Modified radical mastectomy, where the surgical oncologist completes a total mastectomy and also removes the underarm lymph nodes. This procedure is slightly less invasive than radical mastectomy.
  • Skin-sparing mastectomy, where the surgical oncologist removes cancerous breast tissue and nipple, but leaves most of breast skin. This method is used in conjunction with breast reconstruction, as implants can be added below the skin. Skin-sparing mastectomy often requires a treatment team with a surgical oncologist and a plastic surgeon experienced in breast procedures.
  • Nipple-sparing mastectomy, where the surgical oncologist removes cancerous breast tissue and leaves the nipple and most of the breast skin. This method is only available to patients in the early stages of breast cancer. Similar to skin-sparing mastectomy, this procedure is frequently performed with breast reconstruction.

Any of these procedures can be done on both breasts, in which case the procedure would be known as a double mastectomy. For example, a surgical oncologist might perform a total or nipple-sparing mastectomy on both breasts. Double mastectomies are often used as a preventive surgery for those who are at risk of developing breast cancer later on in life.

Patients have one or two days of hospital stay before returning home from their mastectomy procedures. Full recovery can take several months, but some patients find they are able to resume normal activity within one month of their mastectomy. Patients are advised to limit arm and chest movements whenever possible.

After surgery, patients must also adjust to changes in their appearance. While some patients choose to receive breast reconstruction, other patients may decide to wear prosthetic breasts or will simply embrace their new chest.

Mastectomies permit patients to conquer cancer and lead healthy, thriving lives as breast cancer survivors.

Noteworthy Medicare Patient Procedures Performed by Dr. Mark L. Koransky, FACS, MD in 2024

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 5%

By Volume:

breast cancer surgery
breast surgery
hemorrhoid banding
lymph node biopsy
lymph node procedures
open lymph node biopsy
partial mastectomy

By Affordability:

open surgery

In 2024, among providers in related specialties within California, Dr. Mark L. Koransky, FACS, MD performed more breast cancer surgery, breast surgery, hemorrhoid banding, lymph node biopsy, lymph node procedures, open lymph node biopsy, and partial mastectomy procedures for Medicare patients than 95% of them and he also had a list price for open surgery that was lower than the list prices billed to Medicare by 95% of them. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Top 10%

By Affordability:

surgical biopsy

In 2024, Dr. Mark L. Koransky, FACS, MD had a list price for surgical biopsy that was lower than the list prices billed to Medicare by 90% of providers in related specialties within California. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Top 25%

By Affordability:

diagnostic procedures
hospital care
inpatient care
inpatient hospital care

In 2012, Dr. Mark L. Koransky, FACS, MD had a list price for diagnostic procedures, hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) that was lower than the list prices billed to Medicare by 75% of providers in related specialties within California. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Mark L. Koransky, FACS, MD treated as a surgical oncologist in Fremont, CA during 2012 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark L. Koransky, FACS, MD for Medicare patients.

doctor visit 136
gastrointestinal procedures 15
minimally invasive procedures 15

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

Volume of procedures performed by Dr. Mark L. Koransky, FACS, MD for Medicare patients.

doctor visit 148

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Koransky, FACS, MD.

Gender
Male 55
Female 78
Ethnicity
Non-Hispanic White 61
Black 11
Hispanic 0
Asian 43
Other 0
Native American 0
Age
From 65 to 74 78
From 75 to 84 31
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Mark L. Koransky, FACS, MD in 2013

Hypertension 56
High Cholesterol 49
Stroke 0
Ischemic Heart Disease 23
Depression 20
Chronic Kidney Disease 20
Asthma 9
Osteoperosis 0
Atrial Fibrilation 10
Heart Failure 14
Chronic Obstructive Pulmonary Disease 0
Diabetes 27
Dementia 0
Cancer 23

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark L. Koransky, FACS, MD treated as a surgical oncologist in Fremont, CA during 2014 were minimally invasive procedures, gastrointestinal procedures and catheterization.

Volume of procedures performed by Dr. Mark L. Koransky, FACS, MD for Medicare patients.

catheterization 11
doctor visit 183
gastrointestinal procedures 13
minimally invasive procedures 13

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Koransky, FACS, MD.

Gender
Male 81
Female 88
Ethnicity
Non-Hispanic White 81
Black 0
Hispanic 18
Asian 52
Other 0
Native American 0
Age
From 65 to 74 77
From 75 to 84 43
85 and over 24
Less than 65 25

Conditions of Medicare patients treated by Dr. Mark L. Koransky, FACS, MD in 2014

Hypertension 63
High Cholesterol 59
Stroke 0
Ischemic Heart Disease 31
Depression 21
Chronic Kidney Disease 30
Asthma 7
Osteoperosis 11
Atrial Fibrilation 10
Heart Failure 21
Chronic Obstructive Pulmonary Disease 11
Diabetes 41
Dementia 0
Cancer 27

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark L. Koransky, FACS, MD treated as a surgical oncologist in Fremont, CA during 2015 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark L. Koransky, FACS, MD for Medicare patients.

doctor visit 230
gastrointestinal procedures 26
hospital care 57
inpatient care 57
minimally invasive procedures 26

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Koransky, FACS, MD.

Gender
Male 256
Female 244
Ethnicity
Non-Hispanic White 260
Black 0
Hispanic 44
Asian 150
Other 0
Native American 0
Age
From 65 to 74 252
From 75 to 84 150
85 and over 46
Less than 65 52

Conditions of Medicare patients treated by Dr. Mark L. Koransky, FACS, MD in 2015

Hypertension 69
High Cholesterol 55
Stroke 6
Ischemic Heart Disease 35
Depression 15
Chronic Kidney Disease 31
Asthma 10
Osteoperosis 10
Atrial Fibrilation 13
Heart Failure 20
Chronic Obstructive Pulmonary Disease 10
Diabetes 35
Dementia 10
Cancer 23

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark L. Koransky, FACS, MD treated as a surgical oncologist in Fremont, CA during 2016 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark L. Koransky, FACS, MD for Medicare patients.

catheterization 11
doctor visit 228
gastrointestinal procedures 21
hospital care 46
inpatient care 46
minimally invasive procedures 21

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Koransky, FACS, MD.

Gender
Male 114
Female 142
Ethnicity
Non-Hispanic White 132
Black 12
Hispanic 28
Asian 66
Other 18
Native American 0
Age
From 65 to 74 125
From 75 to 84 77
85 and over 26
Less than 65 28

Conditions of Medicare patients treated by Dr. Mark L. Koransky, FACS, MD in 2016

Hypertension 64
High Cholesterol 57
Stroke 0
Ischemic Heart Disease 30
Depression 19
Chronic Kidney Disease 30
Asthma 13
Osteoperosis 10
Atrial Fibrilation 13
Heart Failure 16
Chronic Obstructive Pulmonary Disease 12
Diabetes 28
Dementia 9
Cancer 27

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark L. Koransky, FACS, MD treated as a surgical oncologist in Fremont, CA during 2017 were gastrointestinal procedures, hospital care, inpatient care and minimally invasive procedures.

Volume of procedures performed by Dr. Mark L. Koransky, FACS, MD for Medicare patients.

abdominal surgery 14
catheterization 13
doctor visit 188
gastrointestinal procedures 43
hospital care 40
inpatient care 40
minimally invasive procedures 31

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Koransky, FACS, MD.

Gender
Male 113
Female 120
Ethnicity
Non-Hispanic White 103
Black 12
Hispanic 20
Asian 84
Other 14
Native American 0
Age
From 65 to 74 118
From 75 to 84 79
85 and over 20
Less than 65 16

Conditions of Medicare patients treated by Dr. Mark L. Koransky, FACS, MD in 2017

Hypertension 66
High Cholesterol 48
Stroke 0
Ischemic Heart Disease 34
Depression 20
Chronic Kidney Disease 36
Asthma 8
Osteoperosis 14
Atrial Fibrilation 13
Heart Failure 16
Chronic Obstructive Pulmonary Disease 13
Diabetes 32
Dementia 6
Cancer 28

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark L. Koransky, FACS, MD treated as a surgical oncologist in Fremont, CA during 2018 were hospital care, inpatient care, gastrointestinal procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Mark L. Koransky, FACS, MD for Medicare patients.

abdominal surgery 15
catheterization 12
doctor visit 238
gastrointestinal procedures 47
hospital care 49
inpatient care 49
minimally invasive procedures 34

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Koransky, FACS, MD.

Gender
Male 116
Female 150
Ethnicity
Non-Hispanic White 126
Black 15
Hispanic 32
Asian 76
Other 17
Native American 0
Age
From 65 to 74 130
From 75 to 84 87
85 and over 19
Less than 65 30

Conditions of Medicare patients treated by Dr. Mark L. Koransky, FACS, MD in 2018

Hypertension 61
High Cholesterol 51
Stroke 0
Ischemic Heart Disease 29
Depression 21
Chronic Kidney Disease 35
Asthma 7
Osteoperosis 10
Atrial Fibrilation 14
Heart Failure 16
Chronic Obstructive Pulmonary Disease 8
Diabetes 32
Dementia 7
Cancer 24

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark L. Koransky, FACS, MD treated as a surgical oncologist in Fremont, CA during 2019 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark L. Koransky, FACS, MD for Medicare patients.

abdominal surgery 14
doctor visit 211
gastrointestinal procedures 37
hospital care 51
inpatient care 51
minimally invasive procedures 37

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Koransky, FACS, MD.

Gender
Male 129
Female 117
Ethnicity
Non-Hispanic White 116
Black 0
Hispanic 28
Asian 78
Other 0
Native American 0
Age
From 65 to 74 125
From 75 to 84 83
85 and over 16
Less than 65 22

Conditions of Medicare patients treated by Dr. Mark L. Koransky, FACS, MD in 2019

Hypertension 0
High Cholesterol 0
Stroke 0
Ischemic Heart Disease 32
Depression 0
Chronic Kidney Disease 35
Asthma 9
Osteoperosis 8
Atrial Fibrilation 14
Heart Failure 15
Chronic Obstructive Pulmonary Disease 8
Diabetes 0
Dementia 9
Cancer 25

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark L. Koransky, FACS, MD treated as a surgical oncologist in Fremont, CA during 2020 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Mark L. Koransky, FACS, MD for Medicare patients.

doctor visit 178
gastrointestinal procedures 14
hospital care 17
inpatient care 17
minimally invasive procedures 14

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Koransky, FACS, MD.

Gender
Male 97
Female 109
Ethnicity
Non-Hispanic White 89
Black 0
Hispanic 31
Asian 63
Other 0
Native American 0
Age
From 65 to 74 109
From 75 to 84 55
85 and over 23
Less than 65 19

Conditions of Medicare patients treated by Dr. Mark L. Koransky, FACS, MD in 2020

Hypertension 60
High Cholesterol 54
Stroke 0
Ischemic Heart Disease 32
Depression 22
Chronic Kidney Disease 33
Asthma 9
Osteoperosis 10
Atrial Fibrilation 12
Heart Failure 16
Chronic Obstructive Pulmonary Disease 7
Diabetes 31
Dementia 8
Cancer 28

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark L. Koransky, FACS, MD treated as a surgical oncologist in Fremont, CA during 2021 were hospital care, inpatient care, excision and minimally invasive procedures.

Volume of procedures performed by Dr. Mark L. Koransky, FACS, MD for Medicare patients.

breast procedures 12
cancer surgery 12
diagnostic procedures 11
doctor visit 270
excision 23
gastrointestinal procedures 17
hospital care 30
inpatient care 30
lymph node procedures 11
minimally invasive procedures 17
open surgery 11

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Koransky, FACS, MD.

Gender
Male 100
Female 137
Ethnicity
Non-Hispanic White 104
Black 0
Hispanic 28
Asian 79
Other 0
Native American 0
Age
From 65 to 74 122
From 75 to 84 73
85 and over 25
Less than 65 17

Conditions of Medicare patients treated by Dr. Mark L. Koransky, FACS, MD in 2021

Hypertension 60
High Cholesterol 57
Stroke 0
Ischemic Heart Disease 27
Depression 14
Chronic Kidney Disease 34
Asthma 8
Osteoperosis 14
Atrial Fibrilation 9
Heart Failure 13
Chronic Obstructive Pulmonary Disease 8
Diabetes 36
Dementia 8
Cancer 22

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark L. Koransky, FACS, MD treated as a surgical oncologist in Fremont, CA during 2022 were gastrointestinal procedures, hospital care, inpatient care and minimally invasive procedures.

Volume of procedures performed by Dr. Mark L. Koransky, FACS, MD for Medicare patients.

abdominal surgery 11
breast procedures 13
cancer surgery 13
doctor visit 221
excision 13
gastrointestinal procedures 41
hospital care 29
inpatient care 29
minimally invasive procedures 22

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Koransky, FACS, MD.

Gender
Male 103
Female 117
Ethnicity
Non-Hispanic White 88
Black 0
Hispanic 23
Asian 84
Other 0
Native American 0
Age
From 65 to 74 100
From 75 to 84 81
85 and over 27
Less than 65 12

Conditions of Medicare patients treated by Dr. Mark L. Koransky, FACS, MD in 2022

Hypertension 72
High Cholesterol 75
Stroke 5
Ischemic Heart Disease 29
Depression 16
Chronic Kidney Disease 24
Asthma 10
Osteoperosis 21
Atrial Fibrilation 16
Heart Failure 14
Chronic Obstructive Pulmonary Disease 10
Diabetes 29
Dementia 7
Cancer 28

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mark L. Koransky, FACS, MD treated as a surgical oncologist in Fremont, CA during 2023 were gastrointestinal procedures, excision, lymph node procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Mark L. Koransky, FACS, MD for Medicare patients.

abdominal surgery 13
breast procedures 16
cancer surgery 16
diagnostic procedures 14
doctor visit 207
excision 30
gastrointestinal procedures 62
hospital care 16
inpatient care 16
lymph node procedures 28
minimally invasive procedures 27
open surgery 14

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Koransky, FACS, MD.

Gender
Male 107
Female 117
Ethnicity
Non-Hispanic White 93
Black 11
Hispanic 19
Asian 81
Other 20
Native American 0
Age
From 65 to 74 116
From 75 to 84 64
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Mark L. Koransky, FACS, MD in 2023

Hypertension 72
High Cholesterol 75
Stroke 6
Ischemic Heart Disease 30
Depression 14
Chronic Kidney Disease 22
Asthma 14
Osteoperosis 18
Atrial Fibrilation 15
Heart Failure 18
Chronic Obstructive Pulmonary Disease 13
Diabetes 32
Dementia 6
Cancer 28

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Mark L. Koransky, FACS, MD treated as a surgical oncologist in Fremont, CA during 2024 were hospital care, inpatient care, gastrointestinal procedures and excision.

Volume of procedures performed by Dr. Mark L. Koransky, FACS, MD for Medicare patients.

abdominal surgery 12
breast procedures 17
cancer surgery 17
diagnostic procedures 11
doctor visit 186
excision 28
gastrointestinal procedures 34
hospital care 47
inpatient care 47
lymph node procedures 22
minimally invasive procedures 12
open surgery 11

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark L. Koransky, FACS, MD.

Gender
Male 125
Female 109
Ethnicity
Non-Hispanic White 97
Black 0
Hispanic 29
Asian 93
Other 0
Native American 0
Age
From 65 to 74 107
From 75 to 84 83
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Mark L. Koransky, FACS, MD in 2024

Hypertension 71
High Cholesterol 75
Stroke 10
Ischemic Heart Disease 32
Depression 18
Chronic Kidney Disease 26
Asthma 13
Osteoperosis 22
Atrial Fibrilation 20
Heart Failure 17
Chronic Obstructive Pulmonary Disease 13
Diabetes 35
Dementia 11
Cancer 27

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Mark L. Koransky, FACS, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mark L. Koransky, FACS, MD treated as a surgical oncologist in Fremont, CA were hospital care, inpatient care, gastrointestinal procedures and excision.

abdominal surgery 13
breast procedures 14
cancer surgery 14
catheterization 11
diagnostic procedures 12
doctor visit 201
excision 23
gastrointestinal procedures 30
hospital care 38
inpatient care 38
lymph node procedures 20
minimally invasive procedures 22
open surgery 12

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Mark L. Koransky, FACS, MD.

Gender
Male 107
Female 117
Ethnicity
Black / African American 4
Asian / Pacific Islander 73
Non-Hispanic White 103
Hispanic 23
Native American / Alaskan Native 0
Other 5
Age
75 to 84 69
85 and over 17
Less than 65 17
65 to 74 112

Average of Total of Conditions of Medicare patients treated by Dr. Mark L. Koransky, FACS, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Mark L. Koransky, FACS, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension 54
High Cholesterol 50
Stroke 2
Ischemic Heart Disease 28
Depression 15
Chronic Kidney Disease 27
Asthma 9
Osteoporosis 11
Heart Failure 15
Chronic Obstructive Pulmonary Disease 8
Diabetes 27
Atrial Fibrillation 12
Cancer 23
Dementia 6

Education & Training

Dr. Mark L. Koransky, FACS, MD graduated from University of California, San Francisco (UCSF), School of Medicine. He completed residency at Stanford Hospital & Clinics. He is certified by the Board Certification: Surgery and has a state license in California.

Medical School: University of California, San Francisco (UCSF), School of Medicine

Residency: Stanford Hospital & Clinics

Board Certification: Board Certification: Surgery

Licensed In: California

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Mark L. Koransky, FACS, MD appears to accept the following insurance providers: Private Healthcare Systems (PHCS), WellCare, Medicare Advantage, MultiPlan, Anthem Blue Cross of California, Blue Shield of California, United Healthcare, Cigna, Alliance PPO, HealthSmart, Aetna: Aetna Signature Administrators (ASA), Aetna: Quality Point of Service (QPOS), Aetna: Aetna Student Health Program, Aetna: National Advantage Plan (NAP), Health Net - Currently in 2027 Contract Negotiations: SELECT three-tier POS and SELECT two-tier POS, Large and Small Group, Health Net - Currently in 2027 Contract Negotiations: Health Net HMO: Large Group (101+ employees) & Small Group (2-100 employees), Central California Alliance for Health: TotalCare (HMO D-SNP), Health Net - Currently in 2027 Contract Negotiations: ELECT Open Access POS, Large and Small Group, Health Net - Currently in 2027 Contract Negotiations: ELECT POS, Large and Small Group, TRICARE: Prime Remote, Aetna: Stanford University Faculty & Staff (SUFS) - Copay Plan - Open Access Aetna Select, Health Net - Currently in 2027 Contract Negotiations: Salud HMO Plus Large/Custom Group, TRICARE: Select (formerly TRICARE Standard and TRICARE Extra), TRICARE: Retired Reserve, Aetna: Aetna Choice POS II, Aetna: Traditional Choice, Aetna: HMO Deductible Plans, Aetna: Managed Choice POS, Aetna: Health Fund POS, Aetna: Open Access Elect Choice EPO, SCAN: SCAN Compass (HMO), Aetna: Stanford University Faculty & Staff (SUFS) ACA High Deductible Health Plan POS II (ACA HDHP-POS II), Aetna: Aetna Select Open Access, Sutter Health Plan: Individual and Family Plan HMO, Provider Networks of America: PPO, Valley Health Plan - Currently in 2027 Contract Negotiations: Classic Commercial HMO Plan only, Aetna: Health Fund HMO (aka HMO/HRA), TRICARE: Reserve Select, Health Net - Currently in 2027 Contract Negotiations: PPO for Small Business Health Options Program (SHOP)/Covered California, Santa Clara Family Health Plan: DualConnect (HMO D-SNP), Aetna: Open Access Managed Choice POS, Health Net - Currently in 2027 Contract Negotiations: Health Net PPO, TRICARE: Extended Care Option (ECHO), Aetna: HMO, Sutter Health Plan: Large and Small Group HMO, TRICARE: Prime, Aetna: Open Choice PPO, Aetna: Aetna Select EPO, Aetna: Stanford University Faculty & Staff (SUFS) High Deductible Health Plan POS II (HDHP POS II) and TRICARE: Young Adult.

Insurance Accepted by Provider includes:

According to our sources, Dr. Mark L. Koransky, FACS, MD accepts the following insurance providers:

Private Healthcare Systems (PHCS)
WellCare
Medicare Advantage
MultiPlan
Anthem Blue Cross of California
Blue Shield of California
United Healthcare
Cigna
Alliance PPO
HealthSmart
Aetna: Aetna Signature Administrators (ASA)
Aetna: Quality Point of Service (QPOS)
Aetna: Aetna Student Health Program
Aetna: National Advantage Plan (NAP)
Health Net - Currently in 2027 Contract Negotiations: SELECT three-tier POS and SELECT two-tier POS, Large and Small Group
Health Net - Currently in 2027 Contract Negotiations: Health Net HMO: Large Group (101+ employees) & Small Group (2-100 employees)
Central California Alliance for Health: TotalCare (HMO D-SNP)
Health Net - Currently in 2027 Contract Negotiations: ELECT Open Access POS, Large and Small Group
Health Net - Currently in 2027 Contract Negotiations: ELECT POS, Large and Small Group
TRICARE: Prime Remote
Aetna: Stanford University Faculty & Staff (SUFS) - Copay Plan - Open Access Aetna Select
Health Net - Currently in 2027 Contract Negotiations: Salud HMO Plus Large/Custom Group
TRICARE: Select (formerly TRICARE Standard and TRICARE Extra)
TRICARE: Retired Reserve
Aetna: Aetna Choice POS II
Aetna: Traditional Choice
Aetna: HMO Deductible Plans
Aetna: Managed Choice POS
Aetna: Health Fund POS
Aetna: Open Access Elect Choice EPO
SCAN: SCAN Compass (HMO)
Aetna: Stanford University Faculty & Staff (SUFS) ACA High Deductible Health Plan POS II (ACA HDHP-POS II)
Aetna: Aetna Select Open Access
Sutter Health Plan: Individual and Family Plan HMO
Provider Networks of America: PPO
Valley Health Plan - Currently in 2027 Contract Negotiations: Classic Commercial HMO Plan only
Aetna: Health Fund HMO (aka HMO/HRA)
TRICARE: Reserve Select
Health Net - Currently in 2027 Contract Negotiations: PPO for Small Business Health Options Program (SHOP)/Covered California
Santa Clara Family Health Plan: DualConnect (HMO D-SNP)
Aetna: Open Access Managed Choice POS
Health Net - Currently in 2027 Contract Negotiations: Health Net PPO
TRICARE: Extended Care Option (ECHO)
Aetna: HMO
Sutter Health Plan: Large and Small Group HMO
TRICARE: Prime
Aetna: Open Choice PPO
Aetna: Aetna Select EPO
Aetna: Stanford University Faculty & Staff (SUFS) High Deductible Health Plan POS II (HDHP POS II)
TRICARE: Young Adult

Ratings & Reviews

Dr. Mark L. Koransky, FACS, MD has an exceptional overall rating with an average of 4.9 out of 5 stars based on 250 ratings. We collect ratings and reviews of Dr. Mark L. Koransky, FACS, MD from all over the web to help you find the right in Fremont, CA. 

4.9
Overall Rating
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General Payments

These charts describe general payments received by Dr. Mark L. Koransky, FACS, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

Payments by Company
Intuitive Surgical, Inc. $1,287 Da Vinci Surgical System
$1,287
Olympus America Inc. $103 EVEREST
$103
Medtronic, Inc. $17 Dextile
$17
Types of Payments
Travel and Lodging $1,157
Food and Beverage $249

Biography

Dr. Mark Koransky, who practices in Fremont, CA, is a medical specialist in general surgery and surgical oncology (cancer surgery). Patient ratings for Dr. Koransky average 5.0 stars (out of 5). Clinical interests for Dr. Koransky include colon cancer, thyroid cancer, and anal fissures. His professional affiliations include Washington Health and Sutter Health. He appears to be an in-network provider for Anthem, Blue Cross/Blue Shield, and HealthSmart, in addition to other insurance carriers. According to Sutter Health, new patients are welcome to contact Dr. Koransky's office in Fremont, CA. Before performing his residency at Stanford Hospital & Clinics, Dr. Koransky attended the University of California, San Francisco (UCSF), School of Medicine.

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