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Dr. Jennifer Ellen Guy, MD

Accepting New Patients

(5 Ratings)

Specializes in: Adult Gastroenterology and Adult Transplant Hepatology

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

Professional interests include: acute liver failure , Wilson's disease, metabolic disorders, and more.

3300 Webster Street Suite 202
Oakland, CA 94609

(510) 208-1777

Dr. Jennifer Ellen Guy, MD is a gastroenterologist in San Francisco, CA specializing in adult gastroenterology and adult transplant hepatology. She graduated from University of California, San Francisco (UCSF), School of Medicine. Dr. Jennifer Ellen Guy, MD is affiliated with Brown and Toland Physicians, Sutter Health and California Pacific Medical Center (CPMC).

Office Locations

1100 Van Ness Avenue 3rd Floor
San Francisco, CA 94109

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California Pacific Medical Center (CPMC)

3300 Webster Street Suite 202
Oakland, CA 94609

(510) 208-1777

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Sutter Health

701 East El Camino Real
Mountain View, CA 94040

(415) 600-1000

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In The News

“Grandmother of Melissa and Martin Gragg, Scottsdale, AZ, Dr. Jennifer Guy and Jimmy Franzone, San Francisco, CA, Michael and Dr. Melissa Bates, Madison, WI and Dr. David and Samantha Bates,...”—"Virginia N. LINDER", Twin Cities Pioneer Press, May 2014

Noteworthy Medicare Patient Procedures Performed by Dr. Jennifer Ellen Guy, MD in 2023

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

Top 25%

By Volume:

inpatient hospital care

In 2012, Dr. Jennifer Ellen Guy, MD performed more inpatient hospital care (for patient admitted to hospital) 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. Jennifer Ellen Guy, MD treated as a gastroenterologist in San Francisco, CA during 2012 were hospital care, inpatient care, removal of lesion (e.g. growth) and minimally invasive procedures.

Volume of procedures performed by Dr. Jennifer Ellen Guy, MD for Medicare patients.

diagnostic procedures	12
doctor visit	339
gastrointestinal procedures	12
hospital care	416
inpatient care	416
minimally invasive procedures	12
removal of lesion (e.g. growth)	12

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Jennifer Ellen Guy, MD treated as a gastroenterologist in San Francisco, CA during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Jennifer Ellen Guy, MD for Medicare patients.

doctor visit	312
hospital care	395
inpatient care	395

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer Ellen Guy, MD.

**Gender**
Male	163
Female	118

**Ethnicity**
Non-Hispanic White	160
Black	0
Hispanic	45
Asian	45
Other	0
Native American	0

**Age**
From 65 to 74	115
From 75 to 84	0
85 and over	0
Less than 65	120

Conditions of Medicare patients treated by Dr. Jennifer Ellen Guy, MD in 2013

Hypertension	66
High Cholesterol	37
Stroke	0
Ischemic Heart Disease	31
Depression	35
Chronic Kidney Disease	51
Asthma	10
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	23
Chronic Obstructive Pulmonary Disease	12
Diabetes	45
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Jennifer Ellen Guy, MD treated as a gastroenterologist in San Francisco, CA during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Jennifer Ellen Guy, MD for Medicare patients.

doctor visit	300
hospital care	279
inpatient care	279

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer Ellen Guy, MD.

**Gender**
Male	129
Female	98

**Ethnicity**
Non-Hispanic White	135
Black	15
Hispanic	37
Asian	29
Other	0
Native American	0

**Age**
From 65 to 74	96
From 75 to 84	0
85 and over	0
Less than 65	87

Conditions of Medicare patients treated by Dr. Jennifer Ellen Guy, MD in 2014

Hypertension	70
High Cholesterol	37
Stroke	0
Ischemic Heart Disease	29
Depression	37
Chronic Kidney Disease	53
Asthma	7
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	20
Chronic Obstructive Pulmonary Disease	14
Diabetes	43
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Jennifer Ellen Guy, MD treated as a gastroenterologist in San Francisco, CA during 2015 were hospital care, inpatient care, ultrasound (sonogram) and liver imaging.

Volume of procedures performed by Dr. Jennifer Ellen Guy, MD for Medicare patients.

diagnostic procedures	12
doctor visit	439
gastrointestinal procedures	12
hospital care	290
inpatient care	290
liver imaging	24
minimally invasive procedures	12
removal of lesion (e.g. growth)	12
ultrasound (sonogram)	24

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer Ellen Guy, MD.

**Gender**
Male	356
Female	322

**Ethnicity**
Non-Hispanic White	380
Black	76
Hispanic	96
Asian	90
Other	0
Native American	0

**Age**
From 65 to 74	350
From 75 to 84	0
85 and over	0
Less than 65	222

Conditions of Medicare patients treated by Dr. Jennifer Ellen Guy, MD in 2015

Hypertension	65
High Cholesterol	33
Stroke	5
Ischemic Heart Disease	28
Depression	30
Chronic Kidney Disease	48
Asthma	12
Osteoperosis	9
Atrial Fibrilation	8
Heart Failure	17
Chronic Obstructive Pulmonary Disease	12
Diabetes	39
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Jennifer Ellen Guy, MD treated as a gastroenterologist in San Francisco, CA during 2016 were hospital care, inpatient care, ultrasound (sonogram) and liver imaging.

Volume of procedures performed by Dr. Jennifer Ellen Guy, MD for Medicare patients.

diagnostic procedures	11
doctor visit	326
gastrointestinal procedures	11
hospital care	280
inpatient care	280
liver imaging	27
minimally invasive procedures	11
removal of lesion (e.g. growth)	11
ultrasound (sonogram)	27

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer Ellen Guy, MD.

**Gender**
Male	164
Female	120

**Ethnicity**
Non-Hispanic White	160
Black	24
Hispanic	38
Asian	50
Other	0
Native American	0

**Age**
From 65 to 74	151
From 75 to 84	0
85 and over	0
Less than 65	77

Conditions of Medicare patients treated by Dr. Jennifer Ellen Guy, MD in 2016

Hypertension	70
High Cholesterol	39
Stroke	5
Ischemic Heart Disease	29
Depression	31
Chronic Kidney Disease	56
Asthma	18
Osteoperosis	6
Atrial Fibrilation	11
Heart Failure	19
Chronic Obstructive Pulmonary Disease	15
Diabetes	39
Dementia	11
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Jennifer Ellen Guy, MD treated as a gastroenterologist in San Francisco, CA during 2017 were hospital care, inpatient care, ultrasound (sonogram) and liver imaging.

Volume of procedures performed by Dr. Jennifer Ellen Guy, MD for Medicare patients.

doctor visit	236
hospital care	276
inpatient care	276
liver imaging	11
ultrasound (sonogram)	11

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer Ellen Guy, MD.

**Gender**
Male	128
Female	90

**Ethnicity**
Non-Hispanic White	118
Black	0
Hispanic	33
Asian	45
Other	0
Native American	0

**Age**
From 65 to 74	123
From 75 to 84	0
85 and over	0
Less than 65	52

Conditions of Medicare patients treated by Dr. Jennifer Ellen Guy, MD in 2017

Hypertension	75
High Cholesterol	34
Stroke	5
Ischemic Heart Disease	42
Depression	30
Chronic Kidney Disease	61
Asthma	10
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	24
Chronic Obstructive Pulmonary Disease	16
Diabetes	44
Dementia	13
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Jennifer Ellen Guy, MD treated as a gastroenterologist in San Francisco, CA during 2018 were hospital care, inpatient care, ultrasound (sonogram) and liver imaging.

Volume of procedures performed by Dr. Jennifer Ellen Guy, MD for Medicare patients.

doctor visit	220
hospital care	300
inpatient care	300
liver imaging	13
ultrasound (sonogram)	13

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer Ellen Guy, MD.

**Gender**
Male	152
Female	94

**Ethnicity**
Non-Hispanic White	132
Black	14
Hispanic	38
Asian	47
Other	0
Native American	0

**Age**
From 65 to 74	130
From 75 to 84	0
85 and over	0
Less than 65	60

Conditions of Medicare patients treated by Dr. Jennifer Ellen Guy, MD in 2018

Hypertension	75
High Cholesterol	42
Stroke	0
Ischemic Heart Disease	31
Depression	26
Chronic Kidney Disease	63
Asthma	6
Osteoperosis	9
Atrial Fibrilation	9
Heart Failure	24
Chronic Obstructive Pulmonary Disease	14
Diabetes	38
Dementia	11
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Jennifer Ellen Guy, MD treated as a gastroenterologist in San Francisco, CA during 2019 were hospital care and inpatient care.

Volume of procedures performed by Dr. Jennifer Ellen Guy, MD for Medicare patients.

doctor visit	258
hospital care	273
inpatient care	273

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer Ellen Guy, MD.

**Gender**
Male	147
Female	102

**Ethnicity**
Non-Hispanic White	126
Black	0
Hispanic	43
Asian	54
Other	14
Native American	0

**Age**
From 65 to 74	142
From 75 to 84	0
85 and over	0
Less than 65	56

Conditions of Medicare patients treated by Dr. Jennifer Ellen Guy, MD in 2019

Hypertension	69
High Cholesterol	45
Stroke	0
Ischemic Heart Disease	36
Depression	27
Chronic Kidney Disease	56
Asthma	6
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	22
Chronic Obstructive Pulmonary Disease	12
Diabetes	41
Dementia	11
Cancer	10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Jennifer Ellen Guy, MD treated as a gastroenterologist in San Francisco, CA during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Jennifer Ellen Guy, MD for Medicare patients.

doctor visit	281
hospital care	293
inpatient care	293

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer Ellen Guy, MD.

**Gender**
Male	137
Female	105

**Ethnicity**
Non-Hispanic White	131
Black	13
Hispanic	43
Asian	42
Other	0
Native American	0

**Age**
From 65 to 74	139
From 75 to 84	48
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jennifer Ellen Guy, MD in 2020

Hypertension	70
High Cholesterol	47
Stroke	6
Ischemic Heart Disease	42
Depression	26
Chronic Kidney Disease	55
Asthma	8
Osteoperosis	12
Atrial Fibrilation	10
Heart Failure	24
Chronic Obstructive Pulmonary Disease	14
Diabetes	44
Dementia	14
Cancer	7

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Jennifer Ellen Guy, MD treated as a gastroenterologist in San Francisco, CA during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. Jennifer Ellen Guy, MD for Medicare patients.

doctor visit	352
hospital care	326
inpatient care	326

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer Ellen Guy, MD.

**Gender**
Male	154
Female	127

**Ethnicity**
Non-Hispanic White	161
Black	0
Hispanic	45
Asian	59
Other	0
Native American	0

**Age**
From 65 to 74	164
From 75 to 84	61
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jennifer Ellen Guy, MD in 2021

Hypertension	67
High Cholesterol	48
Stroke	5
Ischemic Heart Disease	30
Depression	30
Chronic Kidney Disease	56
Asthma	8
Osteoperosis	12
Atrial Fibrilation	9
Heart Failure	23
Chronic Obstructive Pulmonary Disease	11
Diabetes	41
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Jennifer Ellen Guy, MD treated as a gastroenterologist in San Francisco, CA during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. Jennifer Ellen Guy, MD for Medicare patients.

doctor visit	298
hospital care	213
inpatient care	213

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Jennifer Ellen Guy, MD.

**Gender**
Male	125
Female	122

**Ethnicity**
Non-Hispanic White	137
Black	0
Hispanic	43
Asian	49
Other	0
Native American	0

**Age**
From 65 to 74	143
From 75 to 84	58
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jennifer Ellen Guy, MD in 2022

Hypertension	75
High Cholesterol	61
Stroke	5
Ischemic Heart Disease	26
Depression	26
Chronic Kidney Disease	38
Asthma	14
Osteoperosis	17
Atrial Fibrilation	18
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	40
Dementia	11
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Jennifer Ellen Guy, MD for Medicare patients.

The highest averages for the top procedures that Dr. Jennifer Ellen Guy, MD treated as a gastroenterologist in San Francisco, CA were hospital care, inpatient care, ultrasound (sonogram) and liver imaging.

diagnostic procedures	11
doctor visit	305
gastrointestinal procedures	11
hospital care	303
inpatient care	303
liver imaging	18
minimally invasive procedures	11
removal of lesion (e.g. growth)	11
ultrasound (sonogram)	18

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Jennifer Ellen Guy, MD.

**Gender**
Male	150
Female	118

**Ethnicity**
Black / African American	12
Asian / Pacific Islander	46
Non-Hispanic White	149
Native American / Alaskan Native	0
Hispanic	41
Other	1

**Age**
75 to 84	15
85 and over	0
Less than 65	61
65 to 74	141

Average of Total of Conditions of Medicare patients treated by Dr. Jennifer Ellen Guy, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Jennifer Ellen Guy, MD treated were hypertension, chronic kidney disease, high cholesterol and diabetes.

Hypertension	63
High Cholesterol	38
Stroke	2
Ischemic Heart Disease	29
Depression	27
Chronic Kidney Disease	48
Asthma	9
Osteoporosis	9
Heart Failure	19
Chronic Obstructive Pulmonary Disease	12
Diabetes	37
Atrial Fibrillation	10
Dementia	8
Cancer	9

Education & Training

Dr. Jennifer Ellen Guy, MD graduated from University of California, San Francisco (UCSF), School of Medicine. She completed residency at University of California, San Francisco (UCSF) Affiliated Hospitals. She is certified by the Transplant Hepatology - Board Certified and has a state license in California.

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

Residency: University of California, San Francisco (UCSF) Affiliated Hospitals

Board Certification: Transplant Hepatology - Board Certified

Licensed In: California

Affiliations & Hospitals

Dr. Jennifer Ellen Guy, MD is associated with these hospitals and organizations:

Brown and Toland Physicians

Sutter Health

California Pacific Medical Center (CPMC)

Ratings & Reviews

Dr. Jennifer Ellen Guy, MD has a good overall rating with an average of 3.0 out of 5 stars based on 5 ratings. We collect ratings and reviews of Dr. Jennifer Ellen Guy, MD from all over the web to help you find the right in San Francisco, CA.

Overall Rating

(5 Ratings)

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General Payments

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

**Payments by Company**
Bayer HealthCare Pharmaceuticals Inc.	$2,145 Nexavar $2,123	Stivarga $21
Valeant Pharmaceuticals North America LLC	$124 XIFAXAN $124
Gilead Sciences, Inc.	$100 $100
Janssen Scientific Affairs, LLC	$62 No Product $62
Janssen Biotech, Inc.	$30 SIMPONI $19	OLYSIO $11

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$2,000
Food and Beverage	$461

Research Payments

Dr. Jennifer Ellen Guy, MD has received 5 research payments totaling $55,097.

Biography

Dr. Jennifer Guy sees patients in Mountain View, CA, San Francisco, CA, and Oakland, CA. Her medical specialties are adult gastroenterology and adult transplant hepatology. Patient reviews placed Dr. Guy at an average of 3.0 stars (out of 5). These areas are among her clinical interests: portal hypertension, primary biliary cholangitis, and esophageal varices. She attended the University of California, San Francisco (UCSF), School of Medicine and then went on to complete her residency at a hospital affiliated with the University of California, San Francisco (UCSF). She speaks Spanish. Dr. Guy's hospital/clinic affiliations include California Pacific Medical Center (CPMC) and Brown and Toland Physicians. Her practice in Oakland, CA is open to new patients as reported by Brown and Toland Physicians.