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Dr. Gregory Scot Harmon, MD

Accepting New Patients

(192 Ratings)

Specializes in: Adult Gastroenterology

University of Chicago, Pritzker School of Medicine

20911 Earl Street Suite 220
Torrance, CA 90503

(310) 540-9600

Dr. Gregory Scot Harmon, MD is a gastroenterologist in Torrance, CA specializing in adult gastroenterology. He graduated from University of Chicago, Pritzker School of Medicine. Dr. Gregory Scot Harmon, MD is affiliated with Torrance Memorial and Providence Medical Institute.

Office Locations

Torrance Memorial

20911 Earl Street Suite 220
Torrance, CA 90503

(310) 542-0334

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Noteworthy Medicare Patient Procedures Performed by Dr. Gregory Scot Harmon, MD in 2023

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

Top 5%

By Affordability:

diagnostic EGD

diagnostic upper endoscopy

EGD with biopsy

EGD with lesion removal

esophagogastroduodenoscopy

therapeutic EGD

therapeutic upper endoscopy

upper endoscopy

upper endoscopy with biopsy

upper endoscopy with lesion removal

In 2023, Dr. Gregory Scot Harmon, MD had a list price for diagnostic EGD, diagnostic upper endoscopy, EGD with biopsy, EGD with lesion removal, esophagogastroduodenoscopy (EGD), therapeutic EGD, therapeutic upper endoscopy, upper endoscopy, upper endoscopy with biopsy, and upper endoscopy with lesion removal that was lower than the list prices billed to Medicare by 95% 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. Gregory Scot Harmon, MD treated as a gastroenterologist in Torrance, CA during 2012 were minimally invasive procedures, gastrointestinal procedures, diagnostic procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Gregory Scot Harmon, MD for Medicare patients.

diagnostic procedures	117
doctor visit	258
gastrointestinal procedures	131
hospital care	79
inpatient care	79
minimally invasive procedures	131
preventive care	14
removal of lesion (e.g. growth)	97

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gregory Scot Harmon, MD treated as a gastroenterologist in Torrance, CA during 2013 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Gregory Scot Harmon, MD for Medicare patients.

diagnostic procedures	42
doctor visit	113
gastrointestinal procedures	42
minimally invasive procedures	42
removal of lesion (e.g. growth)	42

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Scot Harmon, MD.

**Gender**
Male	48
Female	98

**Ethnicity**
Non-Hispanic White	78
Black	29
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	52
From 75 to 84	43
85 and over	20
Less than 65	31

Conditions of Medicare patients treated by Dr. Gregory Scot Harmon, MD in 2013

Hypertension	74
High Cholesterol	52
Stroke	8
Ischemic Heart Disease	42
Depression	32
Chronic Kidney Disease	30
Asthma	8
Osteoperosis	16
Atrial Fibrilation	9
Heart Failure	29
Chronic Obstructive Pulmonary Disease	13
Diabetes	38
Dementia	11
Cancer	21

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gregory Scot Harmon, MD treated as a gastroenterologist in Torrance, CA during 2014 were hospital care, inpatient care, manometry and gastrointestinal procedures.

Volume of procedures performed by Dr. Gregory Scot Harmon, MD for Medicare patients.

doctor visit	31
gastrointestinal procedures	15
hospital care	15
inpatient care	15
manometry	15

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Scot Harmon, MD.

**Gender**
Male	33
Female	33

**Ethnicity**
Non-Hispanic White	55
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	29
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory Scot Harmon, MD in 2014

Hypertension	74
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	53
Depression	26
Chronic Kidney Disease	32
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	17
Chronic Obstructive Pulmonary Disease	17
Diabetes	30
Dementia	17
Cancer	17

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gregory Scot Harmon, MD treated as a gastroenterologist in Torrance, CA during 2015 were gastrointestinal procedures, removal of lesion (e.g. growth), minimally invasive procedures and diagnostic procedures.

Volume of procedures performed by Dr. Gregory Scot Harmon, MD for Medicare patients.

diagnostic procedures	26
doctor visit	23
gastrointestinal procedures	39
manometry	13
minimally invasive procedures	26
removal of lesion (e.g. growth)	26

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Scot Harmon, MD.

**Gender**
Male	56
Female	70

**Ethnicity**
Non-Hispanic White	90
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	64
From 75 to 84	28
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory Scot Harmon, MD in 2015

Hypertension	54
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	33
Depression	24
Chronic Kidney Disease	25
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	30
Dementia	0
Cancer	19

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gregory Scot Harmon, MD treated as a gastroenterologist in Torrance, CA during 2016 were gastrointestinal procedures, manometry, removal of lesion (e.g. growth) and minimally invasive procedures.

Volume of procedures performed by Dr. Gregory Scot Harmon, MD for Medicare patients.

diagnostic procedures	12
doctor visit	11
gastrointestinal procedures	26
manometry	14
minimally invasive procedures	12
removal of lesion (e.g. growth)	12

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Scot Harmon, MD.

**Gender**
Male	32
Female	39

**Ethnicity**
Non-Hispanic White	49
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	29
From 75 to 84	22
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory Scot Harmon, MD in 2016

Hypertension	73
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	44
Depression	34
Chronic Kidney Disease	38
Asthma	20
Osteoperosis	0
Atrial Fibrilation	15
Heart Failure	23
Chronic Obstructive Pulmonary Disease	23
Diabetes	41
Dementia	23
Cancer	18

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gregory Scot Harmon, MD treated as a gastroenterologist in Torrance, CA during 2017 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Gregory Scot Harmon, MD for Medicare patients.

diagnostic procedures	109
doctor visit	206
gastrointestinal procedures	120
hospital care	222
inpatient care	222
minimally invasive procedures	120
preventive care	11
removal of lesion (e.g. growth)	109

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Scot Harmon, MD.

**Gender**
Male	106
Female	97

**Ethnicity**
Non-Hispanic White	153
Black	0
Hispanic	16
Asian	16
Other	0
Native American	0

**Age**
From 65 to 74	72
From 75 to 84	72
85 and over	40
Less than 65	19

Conditions of Medicare patients treated by Dr. Gregory Scot Harmon, MD in 2017

Hypertension	75
High Cholesterol	65
Stroke	11
Ischemic Heart Disease	46
Depression	24
Chronic Kidney Disease	43
Asthma	10
Osteoperosis	9
Atrial Fibrilation	22
Heart Failure	36
Chronic Obstructive Pulmonary Disease	22
Diabetes	38
Dementia	23
Cancer	17

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gregory Scot Harmon, MD treated as a gastroenterologist in Torrance, CA during 2018 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Gregory Scot Harmon, MD for Medicare patients.

diagnostic procedures	96
doctor visit	193
gastrointestinal procedures	121
hospital care	202
inpatient care	202
minimally invasive procedures	121
preventive care	12
removal of lesion (e.g. growth)	96

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Scot Harmon, MD.

**Gender**
Male	95
Female	97

**Ethnicity**
Non-Hispanic White	139
Black	0
Hispanic	23
Asian	17
Other	0
Native American	0

**Age**
From 65 to 74	81
From 75 to 84	59
85 and over	39
Less than 65	13

Conditions of Medicare patients treated by Dr. Gregory Scot Harmon, MD in 2018

Hypertension	75
High Cholesterol	68
Stroke	11
Ischemic Heart Disease	50
Depression	32
Chronic Kidney Disease	47
Asthma	8
Osteoperosis	12
Atrial Fibrilation	24
Heart Failure	33
Chronic Obstructive Pulmonary Disease	19
Diabetes	47
Dementia	27
Cancer	21

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gregory Scot Harmon, MD treated as a gastroenterologist in Torrance, CA during 2019 were hospital care, inpatient care, removal of lesion (e.g. growth) and minimally invasive procedures.

Volume of procedures performed by Dr. Gregory Scot Harmon, MD for Medicare patients.

diagnostic procedures	113
doctor visit	112
gastrointestinal procedures	113
hospital care	145
inpatient care	145
minimally invasive procedures	113
removal of lesion (e.g. growth)	113

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Scot Harmon, MD.

**Gender**
Male	73
Female	100

**Ethnicity**
Non-Hispanic White	36
Black	31
Hispanic	85
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	83
From 75 to 84	0
85 and over	0
Less than 65	48

Conditions of Medicare patients treated by Dr. Gregory Scot Harmon, MD in 2019

Hypertension	75
High Cholesterol	61
Stroke	13
Ischemic Heart Disease	43
Depression	0
Chronic Kidney Disease	55
Asthma	10
Osteoperosis	0
Atrial Fibrilation	11
Heart Failure	39
Chronic Obstructive Pulmonary Disease	16
Diabetes	51
Dementia	20
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Scot Harmon, MD.

**Ethnicity**
Non-Hispanic White	0
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	12
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory Scot Harmon, MD in 2020

Hypertension	75
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	40
Depression	0
Chronic Kidney Disease	50
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	63
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gregory Scot Harmon, MD treated as a gastroenterologist in Torrance, CA during 2022 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Gregory Scot Harmon, MD for Medicare patients.

diagnostic procedures	126
doctor visit	200
gastrointestinal procedures	126
minimally invasive procedures	126
removal of lesion (e.g. growth)	126

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Scot Harmon, MD.

**Gender**
Male	75
Female	88

**Ethnicity**
Non-Hispanic White	117
Black	0
Hispanic	0
Asian	15
Other	16
Native American	0

**Age**
From 65 to 74	82
From 75 to 84	64
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory Scot Harmon, MD in 2022

Hypertension	72
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	20
Depression	12
Chronic Kidney Disease	24
Asthma	10
Osteoperosis	21
Atrial Fibrilation	12
Heart Failure	9
Chronic Obstructive Pulmonary Disease	12
Diabetes	29
Dementia	0
Cancer	17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Gregory Scot Harmon, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gregory Scot Harmon, MD treated as a gastroenterologist in Torrance, CA were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

diagnostic procedures	80
doctor visit	127
gastrointestinal procedures	81
hospital care	132
inpatient care	132
manometry	14
minimally invasive procedures	86
preventive care	12
removal of lesion (e.g. growth)	77

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Gregory Scot Harmon, MD.

**Gender**
Male	51
Female	62

**Ethnicity**
Black / African American	6
Asian / Pacific Islander	4
Non-Hispanic White	71
Native American / Alaskan Native	0
Hispanic	16
Other	1

**Age**
75 to 84	30
85 and over	9
Less than 65	11
65 to 74	50

Average of Total of Conditions of Medicare patients treated by Dr. Gregory Scot Harmon, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Gregory Scot Harmon, MD treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	64
High Cholesterol	54
Stroke	4
Ischemic Heart Disease	37
Depression	18
Chronic Kidney Disease	34
Asthma	6
Osteoporosis	5
Heart Failure	18
Chronic Obstructive Pulmonary Disease	12
Diabetes	36
Atrial Fibrillation	9
Dementia	12
Cancer	14

Education & Training

Dr. Gregory Scot Harmon, MD graduated from University of Chicago, Pritzker School of Medicine. He completed residency at McGaw Medical Center of Northwestern University. He is certified by the American Board of Internal Medicine: Gastroenterology and has a state license in California.

Medical School: University of Chicago, Pritzker School of Medicine

Residency: McGaw Medical Center of Northwestern University

Board Certification: American Board of Internal Medicine: Gastroenterology

Licensed In: California

Affiliations & Hospitals

Dr. Gregory Scot Harmon, MD is associated with these hospitals and organizations:

Torrance Memorial

Providence Medical Institute

Ratings & Reviews

Dr. Gregory Scot Harmon, MD has an exceptional overall rating with an average of 4.85 out of 5 stars based on 192 ratings. We collect ratings and reviews of Dr. Gregory Scot Harmon, MD from all over the web to help you find the right in Torrance, CA.

4.85

Overall Rating

(192 Ratings)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 1.0 2012-05-03

I had the appointment set up for a week after my discharge from UCLA Medical Center and they said he spezializes in celiac disease. Therefore, I was glad because my case of celiac disease was so severe. I only spent about 5-10 minutes with him, and spent over and hour a half with the dietitian. He said to call when I ran out of pain and nausea medication. I called back two weeks after because I was trying to stay off everything and listen to what the dietitan had said but it didnt work. I finally called his office again a week later and he finally returned my call and was very rude, and said I must not have listened because I should start to feel better and that maybe I need to come back and see the dietitan again, not even see him. I am sticking to my original GI doctor because he is not worth the money, drive, or time. I had over 17 different doctors in a 2 month period and not one of them was as rude and unprofessional as him.

Reviews From Around The Web

Overall Rating: 5.0 2023-03-06

Patient verified via Press Ganey

The receptionist was extremely friendly and asked me to fill out a few forms and she handed me a clipboard. Very gracious. The nurse was so kind that took my vitals. She listened to my reason for my BP being so high. Dr. Harmon is extremely thorough and very helpful and invested in my health care. He asked great questions. Most importantly he LISTENED to all my concerns and answered all my questions. He is very personable and handsome. I asked for a less attractive Doctor, Female if possible. I'm weird like that. Plus it raises my BP due being anxious, nervous stomach and I feel intimidated by attractive male Doctors. I've never been so sick mentally and physically so I'm self conscious about myself too. My entire experience was extremely educational and relieved many questions I was looking for answered for. Dr. Harmon took all my illnesses and mental conditions into consideration, even including my functioning of my liver and kidney. Dr.Harmon even was very firm and assertive with the EXACT instructions to be prepared for my upcoming procedures. He made it very CLEAR that I follow the direction's exactly as written. Use my chart to ask any questions or get more clarification. He's my new buddy in getting better from the inside out.

Overall Rating: 5.0 2023-03-13

Patient verified via Press Ganey

Dr. G. Harmon (GI) is a fantastic doctor. I was seen by him on an urgent matter, which thankfully was handled by him in a very professional manner. I was lucky to get an appointment with him just in time, as he happened to have an opening on the day I called his office. Also, his staff at the office is superb! They were prompt in relaying all my msgs to Dr. Harmon whenever I had a concern/question after my appointment. It feels great when you sense that your doctor cares. He responded to all my concerns/questions and he returned my calls promptly when necessary. I truly appreciate the time he took out of his busy schedule to respond to my concerns and took care of my medical issue. Truly a great doc!

Overall Rating: 5.0 2024-06-16

Patient verified via Press Ganey

Your staff is excellent. I came in the wrong day for my appointment. The receptionist immediately spoke to the doctor to see if they could fit me in. I was immediately informed that the doctor could see me. I was so appreciative!!Dr. Harmon was very welcoming and kind. He listened to my immediate problems and helped me find solutions. He didn't rush or leave anything out. He asked for all my questions and made me feel important in his care. He scheduled my colonoscopy for my convenience and helped me feel completely confident about the procedure. I would recommend Dr. Harmon to everyone!!

Overall Rating: 5.0 2025-02-10

Patient verified via Press Ganey

Dr Harmon is a great, perfectly suited Dr for me! He is calm, professional, knowledgeable and down to earth. He is very good about making sure my treatment is up-to-date. I previously worked in a hospital so I have a sense of how busy a medical office can be! With the hectic pace that a medical office tends to follow each and every day, staff and Dr always take time to be personal, efficient, knowledgeable and helpful. It is refreshing getting such good "customer service". I feel truly lucky to be a petite t of Dr Harmon's and know I'm getting quality health care.

Overall Rating: 5.0 2023-07-27

Patient verified via Press Ganey

Everyone was very kind and courteous and respectful. I was lucky when I called, because somebody had just canceled their appointment so I was able to get an appointment for the next day when I called. However, had I not called when I did and the person have not canceled their appointment his next available appointment was March 2024. so I gave 10 stars because I was lucky to get a good appointment otherwise waiting till March would've been too long for my case.

Overall Rating: 5.0 2025-04-07

Patient verified via Press Ganey

He is really good about following up with me and answering my questions via my chart or phone. Some reason I really struggle with understanding my gut health so he is really patient and makes sure I understand the treatment plan. Most importantly he has managed to greatly improve my health. Thanks to his treatment plan I'm not hurting everyday and still working to improve my gut health. The staff is also really nice and wonderful about returning messages.

Overall Rating: 5.0 2024-05-08

Patient verified via Press Ganey

My experience was very good. This was my first time meeting Dr. Harman, he was easy to talk to and he listened to what I told him about my first experience with drinking the stuff for my colonoscopy and offered a different drink altogether. He was very thorough as he asked questions and I answered. Most of all he offered a better solution for me. I'm glad my primary doctor referred me to him.

Overall Rating: 5.0 2023-09-26

Patient verified via Press Ganey

Dr. Harmon is a gastroenterologist whom I had seen earlier this year for a colonoscopy. Since I recently had a two-day hospital stay for colitis, he was made aware of this by the hospital. His office called me to schedule an appointment as a follow up appointment. I greatly appreciated his concern and the information and final diagnosis he provided to help me understand my health issue.

Overall Rating: 5.0 2024-12-17

Patient verified via Press Ganey

I didn't like Dr Harrmon showyup to my consultation wearing a mask. Neither one of us were contagious and he asked me if I wanted him to wear a mask, I told him it was not necessary. After that, I was very satisfied and felt very confident with Dr. Harmon.Overall my experience was great and Dr Harmon took be through exactly what I would be going through.

To see all 192 reviews for Dr. Gregory Scot Harmon, MD, view their full profile.

General Payments

These charts describe general payments received by Dr. Gregory Scot Harmon, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
AbbVie, Inc.	$2,274 Humira $1,453	Viekira $247	Creon $124	Moderiba $118	Mavyret $43	Other $290
Gilead Sciences Inc	$845 Harvoni $63	Epclusa $19	$763
Janssen Biotech, Inc.	$509 SIMPONI $245	STELARA $122	REMICADE $96	OLYSIO $40	ZYTIGA $6
Salix Pharmaceuticals, Ltd	$405 Moviprep $235	Uceris $66	Solesta $44	XIFAXAN 550 MG TABLETS $44	XIFAXAN - 550MG $16
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$368 XIFAXAN $214	Uceris $75	XIFAXANIBSD $38	XIFIXAN $21	Trulance $19
Other	$3,271 PENTASA $317	OLYSIO $206	LINZESS $201	SUPREP $198	Indigo $186	Other $2,163

**Types of Payments**
Food and Beverage	$7,402
Education	$211
Gift	$46
Consulting Fee	$14

Biography

Dr. Gregory Harmon is a specialist in adult gastroenterology. He works in Torrance, CA and Harbor City, CA. Patient reviews placed him at an average of 5.0 stars (out of 5). Before performing his residency at McGaw Medical Center of Northwestern University and a hospital affiliated with the University of California, San Diego (UCSD), Dr. Harmon attended the University of Chicago, Pritzker School of Medicine. Dr. Harmon's professional affiliations include Providence Medical Institute and Torrance Memorial. He has an open panel in Torrance, CA according to Doctor.com.