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Home > CA Providers > Dermatologists

Dr. Roy Charles Grekin, MD

Accepting New Patients

(Dr. Roy C. Grekin, MD)

(8 Ratings)

Specializes in: General Surgery, Dermatology (Skin Disorders) and General Practice

University of Michigan Medical School (1977)

1701 Divisadero Street Suite 3
San Francisco, CA 94143

(415) 353-7550

Dr. Roy Charles Grekin, MD is a general surgeon in San Francisco, CA specializing in general surgery, dermatology (skin disorders) and general practice. He graduated from University of Michigan Medical School in 1977 and has 49 years of experience. Dr. Roy Charles Grekin, MD is affiliated with UCSF, Hill Physicians and Dermatologic Surgery and Laser Center.

Office Locations

1701 Divisadero Street
San Francisco, CA 94115

open_in_new

Hill Physicians

1701 Divisadero Street Suite 3
San Francisco, CA 94143

(415) 353-7550

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In The News

“"One of the most important aspects of prognosis is how deep the melanoma is when it's found,"said Dr. Roy Grekin, professor of dermatology and director of the dermatologic surgery division at the...”—"The skin cancer you're not looking for", Fox News, March 2015

“University of California professor of dermatology Roy Grekin suggests it may be largely a matter of climate.”—"Lip balm anonymous", Salon, April 1999

Noteworthy Medicare Patient Procedures Performed by Dr. Roy Charles Grekin, MD in 2023

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

Top 5%

By Volume:

cancer surgery

In 2023, Dr. Roy Charles Grekin, MD performed more cancer surgery procedures for Medicare patients than 95% of providers in related specialties within California.

Top 10%

By Volume:

removal of skin lesion

In 2023, Dr. Roy Charles Grekin, MD performed more removal of skin lesion (growth or mark) procedures for Medicare patients than 90% of providers in related specialties within California.

Top 25%

By Volume:

adjacent tissue transfer

skin surgery

In 2012, Dr. Roy Charles Grekin, MD performed more adjacent tissue transfer, and skin surgery procedures for Medicare patients than 75% of providers in related specialties within California.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Roy Charles Grekin, MD treated as a general surgeon in San Francisco, CA during 2012 were removal of lesion (e.g. growth), skin procedures, skin surgery and cancer surgery.

Volume of procedures performed by Dr. Roy Charles Grekin, MD for Medicare patients.

cancer surgery	248
diagnostic procedures	45
doctor visit	138
plastic surgery procedures	26
reconstructive surgery	26
removal of lesion (e.g. growth)	304
skin procedures	304
skin surgery	248
tissue transfer	26
wound repair (e.g. stitches)	26

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Roy Charles Grekin, MD treated as a general surgeon in San Francisco, CA during 2013 were removal of lesion (e.g. growth), skin procedures, skin surgery and cancer surgery.

Volume of procedures performed by Dr. Roy Charles Grekin, MD for Medicare patients.

cancer surgery	316
diagnostic procedures	72
doctor visit	244
plastic surgery procedures	28
reconstructive surgery	28
removal of lesion (e.g. growth)	449
skin procedures	449
skin surgery	316
tissue transfer	28
wound repair (e.g. stitches)	28

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Roy Charles Grekin, MD.

**Gender**
Male	206
Female	183

**Ethnicity**
Non-Hispanic White	367
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	176
From 75 to 84	121
85 and over	74
Less than 65	18

Conditions of Medicare patients treated by Dr. Roy Charles Grekin, MD in 2013

Hypertension	52
High Cholesterol	51
Stroke	5
Ischemic Heart Disease	29
Depression	12
Chronic Kidney Disease	16
Asthma	5
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	10
Chronic Obstructive Pulmonary Disease	8
Diabetes	15
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Roy Charles Grekin, MD treated as a general surgeon in San Francisco, CA during 2014 were removal of lesion (e.g. growth), skin procedures, skin surgery and cancer surgery.

Volume of procedures performed by Dr. Roy Charles Grekin, MD for Medicare patients.

cancer surgery	456
diagnostic procedures	52
doctor visit	181
injections	34
plastic surgery procedures	16
reconstructive surgery	16
removal of lesion (e.g. growth)	517
skin procedures	517
skin surgery	456
tissue transfer	16
wound repair (e.g. stitches)	16

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Roy Charles Grekin, MD.

**Gender**
Male	204
Female	148

**Ethnicity**
Non-Hispanic White	325
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	169
From 75 to 84	125
85 and over	43
Less than 65	15

Conditions of Medicare patients treated by Dr. Roy Charles Grekin, MD in 2014

Hypertension	47
High Cholesterol	47
Stroke	3
Ischemic Heart Disease	22
Depression	13
Chronic Kidney Disease	14
Asthma	5
Osteoperosis	6
Atrial Fibrilation	13
Heart Failure	11
Chronic Obstructive Pulmonary Disease	5
Diabetes	16
Dementia	6
Cancer	14

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Roy Charles Grekin, MD treated as a general surgeon in San Francisco, CA during 2015 were removal of lesion (e.g. growth), skin procedures, skin surgery and cancer surgery.

Volume of procedures performed by Dr. Roy Charles Grekin, MD for Medicare patients.

cancer surgery	396
diagnostic procedures	57
doctor visit	176
injections	33
plastic surgery procedures	18
reconstructive surgery	18
removal of lesion (e.g. growth)	480
skin procedures	480
skin surgery	396
tissue transfer	18
wound repair (e.g. stitches)	18

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Roy Charles Grekin, MD.

**Gender**
Male	380
Female	280

**Ethnicity**
Non-Hispanic White	602
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	286
From 75 to 84	226
85 and over	104
Less than 65	44

Conditions of Medicare patients treated by Dr. Roy Charles Grekin, MD in 2015

Hypertension	49
High Cholesterol	48
Stroke	5
Ischemic Heart Disease	24
Depression	12
Chronic Kidney Disease	17
Asthma	4
Osteoperosis	6
Atrial Fibrilation	10
Heart Failure	11
Chronic Obstructive Pulmonary Disease	5
Diabetes	19
Dementia	7
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Roy Charles Grekin, MD treated as a general surgeon in San Francisco, CA during 2016 were removal of lesion (e.g. growth), skin procedures, skin surgery and cancer surgery.

Volume of procedures performed by Dr. Roy Charles Grekin, MD for Medicare patients.

cancer surgery	372
diagnostic procedures	52
doctor visit	233
injections	33
plastic surgery procedures	19
reconstructive surgery	19
removal of lesion (e.g. growth)	497
skin procedures	497
skin surgery	372
tissue transfer	19
wound repair (e.g. stitches)	19

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Roy Charles Grekin, MD.

**Gender**
Male	202
Female	159

**Ethnicity**
Non-Hispanic White	331
Black	0
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	177
From 75 to 84	119
85 and over	53
Less than 65	12

Conditions of Medicare patients treated by Dr. Roy Charles Grekin, MD in 2016

Hypertension	50
High Cholesterol	42
Stroke	0
Ischemic Heart Disease	22
Depression	14
Chronic Kidney Disease	21
Asthma	10
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	9
Chronic Obstructive Pulmonary Disease	6
Diabetes	19
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Roy Charles Grekin, MD treated as a general surgeon in San Francisco, CA during 2017 were removal of lesion (e.g. growth), skin procedures, skin surgery and cancer surgery.

Volume of procedures performed by Dr. Roy Charles Grekin, MD for Medicare patients.

cancer surgery	415
diagnostic procedures	64
doctor visit	219
injections	25
lab tests	21
plastic surgery procedures	24
reconstructive surgery	24
removal of lesion (e.g. growth)	506
skin procedures	506
skin surgery	415
tissue transfer	24
wound repair (e.g. stitches)	24

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Roy Charles Grekin, MD.

**Gender**
Male	212
Female	155

**Ethnicity**
Non-Hispanic White	330
Black	0
Hispanic	0
Asian	0
Other	19
Native American	0

**Age**
From 65 to 74	163
From 75 to 84	145
85 and over	46
Less than 65	13

Conditions of Medicare patients treated by Dr. Roy Charles Grekin, MD in 2017

Hypertension	50
High Cholesterol	38
Stroke	3
Ischemic Heart Disease	22
Depression	14
Chronic Kidney Disease	20
Asthma	4
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	9
Chronic Obstructive Pulmonary Disease	5
Diabetes	17
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Roy Charles Grekin, MD treated as a general surgeon in San Francisco, CA during 2018 were removal of lesion (e.g. growth), skin procedures, skin surgery and cancer surgery.

Volume of procedures performed by Dr. Roy Charles Grekin, MD for Medicare patients.

cancer surgery	458
diagnostic procedures	67
doctor visit	233
lab tests	42
plastic surgery procedures	19
reconstructive surgery	19
removal of lesion (e.g. growth)	570
skin procedures	570
skin surgery	458
tissue transfer	19
wound repair (e.g. stitches)	19

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Roy Charles Grekin, MD.

**Gender**
Male	259
Female	169

**Ethnicity**
Non-Hispanic White	394
Black	0
Hispanic	0
Asian	0
Other	19
Native American	0

**Age**
From 65 to 74	167
From 75 to 84	178
85 and over	64
Less than 65	19

Conditions of Medicare patients treated by Dr. Roy Charles Grekin, MD in 2018

Hypertension	46
High Cholesterol	45
Stroke	3
Ischemic Heart Disease	21
Depression	17
Chronic Kidney Disease	18
Asthma	5
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	11
Chronic Obstructive Pulmonary Disease	7
Diabetes	16
Dementia	10
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Roy Charles Grekin, MD treated as a general surgeon in San Francisco, CA during 2019 were removal of lesion (e.g. growth), skin procedures, skin surgery and cancer surgery.

Volume of procedures performed by Dr. Roy Charles Grekin, MD for Medicare patients.

cancer surgery	328
doctor visit	231
lab tests	33
plastic surgery procedures	18
reconstructive surgery	18
removal of lesion (e.g. growth)	429
skin procedures	429
skin surgery	328
tissue transfer	18
wound repair (e.g. stitches)	18

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Roy Charles Grekin, MD.

**Gender**
Male	236
Female	161

**Age**
From 65 to 74	180
From 75 to 84	153
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Roy Charles Grekin, MD in 2019

Hypertension	46
High Cholesterol	44
Stroke	0
Ischemic Heart Disease	25
Depression	13
Chronic Kidney Disease	19
Asthma	5
Osteoperosis	10
Atrial Fibrilation	0
Heart Failure	10
Chronic Obstructive Pulmonary Disease	5
Diabetes	14
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Roy Charles Grekin, MD treated as a general surgeon in San Francisco, CA during 2020 were removal of lesion (e.g. growth), skin procedures, skin surgery and cancer surgery.

Volume of procedures performed by Dr. Roy Charles Grekin, MD for Medicare patients.

cancer surgery	474
doctor visit	243
injections	15
lab tests	39
minor procedures	13
plastic surgery procedures	30
reconstructive surgery	30
removal of lesion (e.g. growth)	622
skin procedures	622
skin surgery	474
tissue transfer	30
wound repair (e.g. stitches)	43

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Roy Charles Grekin, MD.

**Gender**
Male	261
Female	204

**Ethnicity**
Non-Hispanic White	406
Black	0
Hispanic	13
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	180
From 75 to 84	190
85 and over	79
Less than 65	16

Conditions of Medicare patients treated by Dr. Roy Charles Grekin, MD in 2020

Hypertension	46
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	23
Depression	15
Chronic Kidney Disease	20
Asthma	4
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	12
Chronic Obstructive Pulmonary Disease	4
Diabetes	17
Dementia	4
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Roy Charles Grekin, MD treated as a general surgeon in San Francisco, CA during 2021 were removal of lesion (e.g. growth), skin procedures, skin surgery and cancer surgery.

Volume of procedures performed by Dr. Roy Charles Grekin, MD for Medicare patients.

cancer surgery	582
doctor visit	295
injections	19
lab tests	48
plastic surgery procedures	38
reconstructive surgery	38
removal of lesion (e.g. growth)	721
skin procedures	721
skin surgery	582
tissue transfer	38
wound repair (e.g. stitches)	38

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Roy Charles Grekin, MD.

**Gender**
Male	274
Female	205

**Ethnicity**
Non-Hispanic White	425
Black	0
Hispanic	12
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	189
From 75 to 84	208
85 and over	69
Less than 65	13

Conditions of Medicare patients treated by Dr. Roy Charles Grekin, MD in 2021

Hypertension	51
High Cholesterol	49
Stroke	3
Ischemic Heart Disease	25
Depression	14
Chronic Kidney Disease	23
Asthma	5
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	11
Chronic Obstructive Pulmonary Disease	7
Diabetes	16
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Roy Charles Grekin, MD treated as a general surgeon in San Francisco, CA during 2022 were removal of lesion (e.g. growth), skin procedures, skin surgery and cancer surgery.

Volume of procedures performed by Dr. Roy Charles Grekin, MD for Medicare patients.

cancer surgery	588
doctor visit	265
injections	30
lab tests	58
plastic surgery procedures	22
reconstructive surgery	22
removal of lesion (e.g. growth)	713
skin procedures	713
skin surgery	588
tissue transfer	22
wound repair (e.g. stitches)	22

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Roy Charles Grekin, MD.

**Gender**
Male	272
Female	205

**Ethnicity**
Non-Hispanic White	429
Black	0
Hispanic	14
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	158
From 75 to 84	220
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Roy Charles Grekin, MD in 2022

Hypertension	60
High Cholesterol	68
Stroke	4
Ischemic Heart Disease	19
Depression	11
Chronic Kidney Disease	18
Asthma	6
Osteoperosis	16
Atrial Fibrilation	21
Heart Failure	10
Chronic Obstructive Pulmonary Disease	8
Diabetes	16
Dementia	4
Cancer	20

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Roy Charles Grekin, MD for Medicare patients.

The highest averages for the top procedures that Dr. Roy Charles Grekin, MD treated as a general surgeon in San Francisco, CA were removal of lesion (e.g. growth), skin procedures, skin surgery and cancer surgery.

cancer surgery	421
diagnostic procedures	58
doctor visit	223
injections	27
lab tests	40
minor procedures	13
plastic surgery procedures	23
reconstructive surgery	23
removal of lesion (e.g. growth)	528
skin procedures	528
skin surgery	421
tissue transfer	23
wound repair (e.g. stitches)	24

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Roy Charles Grekin, MD.

**Gender**
Male	227
Female	169

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	328
Native American / Alaskan Native	0
Hispanic	3
Other	11

**Age**
75 to 84	153
85 and over	48
Less than 65	13
65 to 74	167

Average of Total of Conditions of Medicare patients treated by Dr. Roy Charles Grekin, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Roy Charles Grekin, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	45
High Cholesterol	43
Stroke	2
Ischemic Heart Disease	21
Depression	12
Chronic Kidney Disease	16
Asthma	4
Osteoporosis	8
Heart Failure	9
Chronic Obstructive Pulmonary Disease	5
Diabetes	15
Atrial Fibrillation	10
Dementia	5
Cancer	12

Education & Training

Dr. Roy Charles Grekin, MD graduated from University of Michigan Medical School in 1977. He completed residency at University of Michigan Affiliated Hospitals. He is certified by the American Board of Dermatology and has a state license in California.

Medical School: University of Michigan Medical School (1977)

Residency: University of Michigan Affiliated Hospitals (1981)

Board Certification: American Board of Dermatology

Licensed In: California

Affiliations & Hospitals

Dr. Roy Charles Grekin, MD is associated with these hospitals and organizations:

UCSF

Hill Physicians

Dermatologic Surgery and Laser Center

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. Roy Charles Grekin, MD appears to accept the following insurance providers: Cigna, Aetna, Blue Shield of California, SCAN Health Plan, Anthem, UnitedHealthcare, Health Net, Hill Physicians Care Solutions, Central Health Plan, CCHP Health Plan (Chinese Community Health Plan) and Canopy Health.

Insurance Accepted by Provider includes:

According to our sources, Dr. Roy Charles Grekin, MD accepts the following insurance providers:

Cigna

Aetna

Blue Shield of California

SCAN Health Plan

Anthem

UnitedHealthcare

Health Net

Hill Physicians Care Solutions

Central Health Plan

CCHP Health Plan (Chinese Community Health Plan)

Canopy Health

Ratings & Reviews

Dr. Roy Charles Grekin, MD has an exceptional overall rating with an average of 4.88 out of 5 stars based on 8 ratings. We collect ratings and reviews of Dr. Roy Charles Grekin, MD from all over the web to help you find the right in San Francisco, CA.

4.88

Overall Rating

(8 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2025-01-30

Patient verified via Press Ganey

The procedure, the care, the explanationsAnd no one rushed me or the operation or time in the room . Every detail was perfect and the doctors and the nurse were fantastic and very compassionate

Overall Rating: 5.0 2025-04-05

Patient verified via Press Ganey

Dr Grekin and his Fellows were interested, and excellent at explaining the impact of my previous treatments as well as what to expect from the one I just experience.

Overall Rating: 4.0 2025-03-15

Patient verified via Press Ganey

Very short visit. Plenty of detail in notes. Limited discussion in office. Wasn't really too much to report on.

Overall Rating: 5.0 2025-04-23

Patient verified via Press Ganey

I'm very confident in the care and treatments I am receiving.

Overall Rating: 5.0 2025-06-08

Patient verified via Press Ganey

Dr Grekin is an expert and seeing him is worth the wait.

Overall Rating: 5.0 2026-01-18

Patient verified via Press Ganey

I always recommend Dr. Grekin and his team.

Overall Rating: 5.0 2025-10-31

Patient verified via Press Ganey

Excellent across the board.

Overall Rating: 5.0 2025-03-18

Patient verified via Press Ganey

Fabulous. Dr.

General Payments

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

**Payments by Company**
Allergan Inc.	$200 ACZONE $24	BOTOX COSMETIC $14	$161
Genentech USA, Inc.	$196 Erivedge $196
AbbVie Inc.	$167 BOTOX $53	$114
Celgene Corporation	$54 $54
DUSA Pharmaceuticals, Inc.	$22 BLU-U Blue Light Photodynamic Therapy Illuminator Model 4170 $22
Other	$15 EPIDUO FORTE $15

**Types of Payments**
Food and Beverage	$611
Education	$42

Biography

Dr. Roy Grekin sees patients in Santa Barbara, CA and San Francisco, CA. His medical specialties are general practice, general surgery, and dermatology (skin disorders). Patient ratings for Dr. Grekin average 5.0 stars (out of 5). He appears to be in-network for Blue Shield, Health Net, Anthem, and more. Dr. Grekin obtained his medical school training at the University of Miami, Miller School of Medicine and the University of Michigan Medical School and performed his residency at a hospital affiliated with the University of Michigan and a hospital affiliated with the University of Miami. Dr. Grekin's hospital/clinic affiliations include UCSF Health and Hill Physicians. According to Doctor.com, he is currently accepting new patients at his office in San Francisco, CA.