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Dr. Ivan E. Porter II, MD

(Dr. Ivan Porter, MD)

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Specializes in: Adult Nephrology

Florida State University College of Medicine (2008)

Professional interests include: end-stage renal disease (ESRD), hypertension (high blood pressure), chronic kidney disease (CKD), and more.

4500 San Pablo Road S
Jacksonville, FL 32224

(904) 953-2000

Dr. Ivan E. Porter II, MD is a nephrologist in Jacksonville, FL specializing in adult nephrology. He graduated from Florida State University College of Medicine in 2008 and has 18 years of experience. Dr. Ivan E. Porter II, MD is affiliated with Mayo Clinic.

Office Locations

4500 San Pablo Road S
Jacksonville, FL 32224

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Jacksonville, FL

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Some issues Dr. Ivan E. Porter II, MD can help you with:

Kidney Stones

Kidney stones are hard deposits that form in the kidneys, made up of minerals that are normally present in urine. They can vary in size, from as small as a grain of sand to as large as a nickel, occasionally even larger. Sometimes they lodge in the kidney, and sometimes they break free and make their way out through the urinary tract, which can be extremely painful.

Kidney stones can be smooth or jagged and are yellow to brown in color. They are mostly comprised of the minerals calcium, oxalate, and phosphorus. Examining the stones to see what they are made of can show what caused the stone to be formed in the first place. For example, a stone made of mostly calcium, which is the most common type, can happen any time the urine becomes too concentrated due to dehydration or a blockage in the kidney. A uric acid stone forms when acid levels in the urine get too high, usually due to excessive consumption of animal protein such as meat and fish. A struvite stone is a sign of certain infections, and a cystine stone can be due to a genetic disorder that raises the risk of kidney stones.

The most common symptom of kidney stones is pain, either in the back or lower abdomen, or severe pain when urinating. There may also be blood in the urine. Treatment for kidney stones depends on how large the stone is. Very small stones can pass out of the body on their own, and they do not require treatment other than drinking adequate water and taking pain killers. Larger stones need to be broken apart and removed. The main treatment options are:

Shock wave lithotripsy, which uses sound wave vibrations to break apart the stone
Percutaneous nephrolithotomy, or the use of a very tiny tool (like a wire inserted through the back) to break apart and remove the stone
Ureteroscopy, a thin tube inserted through the urethra and bladder to the stone, where tiny tools can grasp the stone and remove

People who have had one kidney stone are at risk of developing another. To reduce this risk, patients are given instructions specific to the type of stone they developed. Generally the instructions will include drinking more water to dilute the urine, but it may also involve lowering sodium intake or eating less meat.

In The News (see more mentions in the news)

“The case reported by Ivan Porter, MD, of the Mayo Clinic in Jacksonville, Florida, and colleagues in Annals of Internal Medicine Clinical Cases highlights the value of stone analysis, detailed...”—"He Took His Vitamins, Then Developed a Rare Kidney Stone", MedPage Today, February 2026

“Summer is a key time to pay attention to these deposits, since there's a greater risk of kidney stones when temperatures rise and people don't stay hydrated, said Ivan E. Porter, II, a nephrologist...”—"How to avoid this hidden summer health risk that affects 1 in 10 Americans", USA Today, June 2024

“That can start at home, Ivan Porter, a nephrology specialist at the Mayo Clinic in Jacksonville, Florida, said in the town hall, noting that everyone has an individual responsibility to protect...”—"Overcoming vaccine doubts, fears requires outreach and education, experts say", Tucson Weekly, February 2021

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Volume of procedures performed by Dr. Ivan E. Porter II, MD for Medicare patients.

doctor visit	15

Medicare Procedure and Patient Information

Conditions of Medicare patients treated by Dr. Ivan E. Porter II, MD in 2013

Hypertension	75
High Cholesterol	74
Stroke	0
Ischemic Heart Disease	74
Depression	0
Chronic Kidney Disease	57
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Conditions of Medicare patients treated by Dr. Ivan E. Porter II, MD in 2014

Hypertension	75
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	72
Depression	0
Chronic Kidney Disease	72
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Ivan E. Porter II, MD.

**Age**
From 65 to 74	26
From 75 to 84	22
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ivan E. Porter II, MD in 2015

Hypertension	75
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	50
Depression	0
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	36
Chronic Obstructive Pulmonary Disease	0
Diabetes	33
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Ivan E. Porter II, MD treated as a nephrologist in Jacksonville, FL during 2016 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Ivan E. Porter II, MD for Medicare patients.

dialysis	309
doctor visit	341
hemofiltration	142
hospital care	534
inpatient care	534
minimally invasive procedures	19

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Ivan E. Porter II, MD.

**Gender**
Male	368
Female	288

**Ethnicity**
Non-Hispanic White	477
Black	117
Hispanic	27
Asian	18
Other	0
Native American	0

**Age**
From 65 to 74	248
From 75 to 84	179
85 and over	71
Less than 65	158

Conditions of Medicare patients treated by Dr. Ivan E. Porter II, MD in 2016

Hypertension	75
High Cholesterol	65
Stroke	10
Ischemic Heart Disease	61
Depression	24
Chronic Kidney Disease	75
Asthma	21
Osteoperosis	8
Atrial Fibrilation	26
Heart Failure	40
Chronic Obstructive Pulmonary Disease	21
Diabetes	48
Dementia	12
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Ivan E. Porter II, MD treated as a nephrologist in Jacksonville, FL during 2017 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Ivan E. Porter II, MD for Medicare patients.

dialysis	192
doctor visit	325
hemofiltration	67
hospital care	586
inpatient care	574
outpatient care	12

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Ivan E. Porter II, MD.

**Gender**
Male	424
Female	279

**Ethnicity**
Non-Hispanic White	540
Black	118
Hispanic	16
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	279
From 75 to 84	201
85 and over	80
Less than 65	143

Conditions of Medicare patients treated by Dr. Ivan E. Porter II, MD in 2017

Hypertension	75
High Cholesterol	64
Stroke	9
Ischemic Heart Disease	57
Depression	26
Chronic Kidney Disease	75
Asthma	5
Osteoperosis	6
Atrial Fibrilation	26
Heart Failure	41
Chronic Obstructive Pulmonary Disease	20
Diabetes	47
Dementia	15
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Ivan E. Porter II, MD treated as a nephrologist in Jacksonville, FL during 2018 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Ivan E. Porter II, MD for Medicare patients.

dialysis	260
doctor visit	319
hemofiltration	94
hospital care	538
inpatient care	538
minimally invasive procedures	27

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Ivan E. Porter II, MD.

**Gender**
Male	352
Female	269

**Ethnicity**
Non-Hispanic White	444
Black	121
Hispanic	30
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	248
From 75 to 84	185
85 and over	58
Less than 65	130

Conditions of Medicare patients treated by Dr. Ivan E. Porter II, MD in 2018

Hypertension	75
High Cholesterol	68
Stroke	12
Ischemic Heart Disease	59
Depression	26
Chronic Kidney Disease	75
Asthma	7
Osteoperosis	7
Atrial Fibrilation	25
Heart Failure	44
Chronic Obstructive Pulmonary Disease	19
Diabetes	51
Dementia	15
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Ivan E. Porter II, MD treated as a nephrologist in Jacksonville, FL during 2019 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Ivan E. Porter II, MD for Medicare patients.

dialysis	132
doctor visit	257
hemofiltration	31
hospital care	455
inpatient care	439
outpatient care	16

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Ivan E. Porter II, MD.

**Gender**
Male	284
Female	253

**Ethnicity**
Non-Hispanic White	379
Black	104
Hispanic	31
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	210
From 75 to 84	131
85 and over	56
Less than 65	140

Conditions of Medicare patients treated by Dr. Ivan E. Porter II, MD in 2019

Hypertension	75
High Cholesterol	72
Stroke	12
Ischemic Heart Disease	54
Depression	29
Chronic Kidney Disease	75
Asthma	5
Osteoperosis	11
Atrial Fibrilation	23
Heart Failure	47
Chronic Obstructive Pulmonary Disease	20
Diabetes	50
Dementia	16
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Ivan E. Porter II, MD treated as a nephrologist in Jacksonville, FL during 2020 were hospital care, inpatient care, dialysis and hemofiltration.

Volume of procedures performed by Dr. Ivan E. Porter II, MD for Medicare patients.

dialysis	172
doctor visit	253
hemofiltration	76
hospital care	563
inpatient care	563

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Ivan E. Porter II, MD.

**Gender**
Male	283
Female	240

**Ethnicity**
Non-Hispanic White	374
Black	102
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	190
From 75 to 84	144
85 and over	47
Less than 65	142

Conditions of Medicare patients treated by Dr. Ivan E. Porter II, MD in 2020

Hypertension	75
High Cholesterol	74
Stroke	11
Ischemic Heart Disease	58
Depression	27
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	11
Atrial Fibrilation	22
Heart Failure	47
Chronic Obstructive Pulmonary Disease	20
Diabetes	54
Dementia	15
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Ivan E. Porter II, MD treated as a nephrologist in Jacksonville, FL during 2021 were hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Ivan E. Porter II, MD for Medicare patients.

dialysis	17
doctor visit	215
hospital care	475
inpatient care	475

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Ivan E. Porter II, MD.

**Gender**
Male	250
Female	164

**Ethnicity**
Non-Hispanic White	321
Black	56
Hispanic	0
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	170
From 75 to 84	131
85 and over	41
Less than 65	72

Conditions of Medicare patients treated by Dr. Ivan E. Porter II, MD in 2021

Hypertension	75
High Cholesterol	74
Stroke	9
Ischemic Heart Disease	57
Depression	27
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	10
Atrial Fibrilation	24
Heart Failure	45
Chronic Obstructive Pulmonary Disease	24
Diabetes	49
Dementia	16
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Ivan E. Porter II, MD treated as a nephrologist in Jacksonville, FL during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. Ivan E. Porter II, MD for Medicare patients.

doctor visit	194
hospital care	515
inpatient care	515

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Ivan E. Porter II, MD.

**Gender**
Male	210
Female	139

**Ethnicity**
Non-Hispanic White	276
Black	42
Hispanic	0
Asian	0
Other	14
Native American	0

**Age**
From 65 to 74	136
From 75 to 84	127
85 and over	41
Less than 65	45

Conditions of Medicare patients treated by Dr. Ivan E. Porter II, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	47
Depression	28
Chronic Kidney Disease	75
Asthma	12
Osteoperosis	16
Atrial Fibrilation	41
Heart Failure	46
Chronic Obstructive Pulmonary Disease	25
Diabetes	45
Dementia	12
Cancer	23

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Ivan E. Porter II, MD for Medicare patients.

The highest averages for the top procedures that Dr. Ivan E. Porter II, MD treated as a nephrologist in Jacksonville, FL were hospital care, inpatient care, dialysis and hemofiltration.

dialysis	180
doctor visit	239
hemofiltration	82
hospital care	523
inpatient care	519
minimally invasive procedures	23
outpatient care	14

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Ivan E. Porter II, MD.

**Gender**
Male	197
Female	148

**Ethnicity**
Black / African American	60
Asian / Pacific Islander	1
Non-Hispanic White	255
Native American / Alaskan Native	0
Hispanic	11
Other	4

**Age**
75 to 84	101
85 and over	35
Less than 65	75
65 to 74	137

Average of Total of Conditions of Medicare patients treated by Dr. Ivan E. Porter II, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Ivan E. Porter II, MD treated were hypertension, chronic kidney disease, high cholesterol and ischemic heart disease.

Hypertension	68
High Cholesterol	63
Stroke	7
Ischemic Heart Disease	53
Depression	17
Chronic Kidney Disease	66
Asthma	6
Osteoporosis	6
Heart Failure	31
Chronic Obstructive Pulmonary Disease	13
Diabetes	34
Atrial Fibrillation	17
Dementia	9
Cancer	9

Education & Training

Dr. Ivan E. Porter II, MD graduated from Florida State University College of Medicine in 2008. He completed residency at Mayo Clinic. He is certified by the Internal Medicine American Board of Internal Medicine and has a state license in Florida.

Medical School: Florida State University College of Medicine (2008)

Residency: Mayo Clinic (2012)

Board Certification: Internal Medicine American Board of Internal Medicine (2011)

Licensed In: Florida

Affiliations & Hospitals

Dr. Ivan E. Porter II, MD is associated with these hospitals and organizations:

Mayo Clinic

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General Payments

These charts describe general payments received by Dr. Ivan E. Porter II, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
NxStage Medical, Inc.	$144 System One $144
Aurinia Pharma U.S., Inc.	$119 LUPKYNIS $119
Otsuka America Pharmaceutical, Inc.	$118 SAMSCA $118
Questcor Pharmaceuticals	$112 ACTHAR $112
Baxter Healthcare	$59 Renal - PD $59
Other	$3 (815) Thiola $3

**Types of Payments**
Food and Beverage	$497
Education	$57

Research Payments

Dr. Ivan E. Porter II, MD has received 80 research payments totaling $408,632.

Biography

Dr. Ivan Porter is a specialist in adult nephrology. In his practice, he is particularly interested in kidney stones, hypertension (high blood pressure), and medical education. He is professionally affiliated with Mayo Clinic. Dr. Porter attended medical school at Florida State University College of Medicine. For his professional training, Dr. Porter completed a residency program at Mayo Clinic. Distinctions awarded to Dr. Porter include: Department Of Medicine Everybody IN Award - Department of Internal Medicine; Outstanding Course Director - Mayo School of Continuous Professional Development; and Outstanding Faculty - Mayo School of Continuous Professional Development.