Updated October 2026

Gastroenterologists in San Francisco, CA

Gastroenterology
San Francisco, California

Gastroenterologists: 85
Linked to a hospital or group: 68
Hospitals with a gastroenterologist: 25
Medical groups with a gastroenterologist: 19
Practice at a hospital: 61

There are 85 gastroenterologists in San Francisco. UCSF Pediatrics has the most, 24, and California Pacific Medical Center Van Ness Campus has the most affiliated gastroenterologists, 22. 29% finished medical school 30 or more years ago.

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San Francisco gastroenterologists, listed A to Z by last name

Each gastroenterologist on the list has gastroenterology as their primary specialty and a San Francisco practice address. The list shows the NPI, and how many hospitals and medical groups each one practices with. A free account names every hospital and group, with validated contacts.

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San Francisco gastroenterologists, A to Z
Gastroenterologist	Hospitals	Medical groups	Email and phone
James Edward Allison, MDNPI 1265535777	-	-	Contacts
Patrick V. AvilaNPI 1114365699	4 hospitals	5 groups	Contacts
Kendall Rhea BeckNPI 1972892057	3 hospitals	3 groups	Contacts
Kenneth F. Binmoeller, MDNPI 1851321715	5 hospitals	2 groups	Contacts
Cathleen Nora Cabansag, MDNPI 1275704744	2 hospitals	1 group	Contacts
Jennifer Y. Chen, MDNPI 1376771758	1 hospital	5 groups	Contacts
Timothy H. Chen, MDNPI 1699017707	3 hospitals	2 groups	Contacts
Laura S. Chiu, MD, MPHNPI 1083076350	3 hospitals	3 groups	Contacts
Daniel Richard Conlin, MDNPI 1952439713	2 hospitals	1 group	Contacts
Douglas A. Corley, MDNPI 1598843138	1 hospital	1 group	Contacts
Sun-Chuan Dai, MDNPI 1811157050	2 hospitals	5 groups	Contacts
Lukejohn Welch Day, MDNPI 1669623773	1 hospital	5 groups	Contacts
Pooja Dharwadkar, MDNPI 1952720450	2 hospitals	2 groups	Contacts
Edward Doo, MDNPI 1295837243	-	-	Contacts
Robert J. Elsen, MDNPI 1639212624	3 hospitals	1 group	Contacts
Colin John FeuilleNPI 1851718118	2 hospitals	4 groups	Contacts
Richard Todd Frederick, MDNPI 1720009160	5 hospitals	1 group	Contacts
Gregory Fung, MDNPI 1700970795	4 hospitals	3 groups	Contacts
Jeanne-Marie GiardNPI 1194134460	-	-	Contacts
Stanley B. Goldberg, MDNPI 1366545865	-	-	Contacts
Max Lloyd Goldman, MDNPI 1295239465	-	4 groups	Contacts
Christopher Michael Hamerski, MDNPI 1205033420	2 hospitals	2 groups	Contacts
Nazia Hasan, MD, MPHNPI 1831394667	2 hospitals	3 groups	Contacts
Yao Y. Heng, MDNPI 1225116825	1 hospital	1 group	Contacts
Nancy Ho, MDNPI 1154554657	-	1 group	Contacts
Annsa C. Huang, MDNPI 1861881658	1 hospital	-	Contacts
Steven A. Jacobsohn, MDNPI 1639104151	-	-	Contacts
Wing K. Kam, MD, PhDNPI 1003964826	-	-	Contacts
Priya Kathpalia, MDNPI 1194046821	2 hospitals	3 groups	Contacts
Mandana Khalili, MDNPI 1184727687	1 hospital	2 groups	Contacts
Wolfgang Michael Korn, MDNPI 1235187055	-	3 groups	Contacts
Abdul Kouanda, MDNPI 1144648833	2 hospitals	2 groups	Contacts
Annette Y. Kwon, MDNPI 1417009630	4 hospitals	1 group	Contacts
Angela LamNPI 1578925517	1 hospital	1 group	Contacts
Michael Carl Larsen, MDNPI 1962685222	2 hospitals	3 groups	Contacts
Marcia Leung, MDNPI 1730684648	2 hospitals	1 group	Contacts
Emma LevineNPI 1114555059	2 hospitals	3 groups	Contacts
Michael LiNPI 1508253303	3 hospitals	5 groups	Contacts
Mimi Lin, MDNPI 1659588457	3 hospitals	2 groups	Contacts
Jesse Liu, MDNPI 1043348618	3 hospitals	3 groups	Contacts
Alejandro LopezNPI 1578190724	1 hospital	3 groups	Contacts
Andrew I. Lu, MDNPI 1912197393	2 hospitals	1 group	Contacts
Timothy T. Lu, MD, PhDNPI 1922258169	-	-	Contacts
Averil I. Ma, MDNPI 1336250141	-	-	Contacts
Uma Mahadevan, MDNPI 1851355283	1 hospital	3 groups	Contacts
Jacquelyn Jo Maher, MDNPI 1457454951	1 hospital	2 groups	Contacts
Christian Bernard Mathy, MDNPI 1922059393	-	-	Contacts
Kenneth Raymond Mcquaid, MDNPI 1497781009	-	-	Contacts
Rena Mei, MDNPI 1023571908	1 hospital	2 groups	Contacts
Aristotle E. Mendiola, MDNPI 1871518266	3 hospitals	-	Contacts

Showing 1 to 10 of 82 San Francisco gastroenterologists

The list shows the 82 gastroenterologists with a public profile. The other 3 are counted in the total and searchable with a free account.

Sources: NPPES NPI Registry (CMS) and Dmand AI Affiliation Data

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Dmand AI has the EHR for 82 of 85 San Francisco gastroenterologists, at their hospital and their practice. Filter by Epic, Oracle Health, MEDITECH, athenahealth and more, then reach them with validated work emails and mobile numbers.

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UCSF Pediatrics has the most gastroenterologists in San Francisco, with 24

UCSF Medical Group is second with 23, and UCSF Division of General Internal Medicine third with 23. Counts are gastroenterologists with a California address linked to each group.

Medical groups with the most gastroenterologists in San Francisco
#	Medical group	Parent organization	Gastroenterologists
1	UCSF PediatricsSan Francisco	Parent on file	24
2	UCSF Medical GroupSan Francisco	Parent on file	23
3	UCSF Division of General Internal MedicineSan Francisco	Parent on file	23
4	San Francisco Public Health LaboratorySan Francisco	Parent on file	14
5	UCSF Department of Radiology & Biomedical ImagingSan Francisco	Parent on file	14
6	The Permanente Medical Group, Inc.Pleasanton	Parent on file	14
7	Palo Alto Foundation Medical GroupPalo Alto	Parent on file	9
8	North East Medical Services (NEMS)Daly City	Parent on file	4
9	County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health ClinicSan Jose	Parent on file	2
10	Unio Specialty Care, Urology, Encinitas (formerly Genesis Healthcare Partners)Encinitas	Parent on file	2

Top 10 of 19 San Francisco medical groups with a gastroenterologist

Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data

California Pacific Medical Center Van Ness Campus has the most affiliated gastroenterologists in San Francisco, with 22

UCSF Helen Diller Medical Center at Parnassus Heights is second with 22, and California Pacific Medical Center Davies Campus third with 18. San Francisco gastroenterologists are affiliated with 25 hospitals in all.

Hospitals with the most gastroenterologists in San Francisco
#	Hospital	Health system	Gastroenterologists
1	California Pacific Medical Center Van Ness CampusSan Francisco	Sutter Health	22
2	UCSF Helen Diller Medical Center at Parnassus HeightsSan Francisco	University of California Health	22
3	California Pacific Medical Center Davies CampusSan Francisco	Sutter Health	18
4	California Pacific Medical Center Mission Bernal Campus & Orthopedic InstituteSan Francisco	Sutter Health	12
5	Zuckerberg San Francisco General Hospital and Trauma CenterSan Francisco	City and County of San Francisco, CA	12
6	San Francisco Medical CenterSan Francisco	Kaiser Permanente	9
7	UCSF Health Stanyan HospitalSan Francisco	University of California Health	7
8	UCSF Health Hyde HospitalSan Francisco	University of California Health	5
9	MarinHealth Medical CenterGreenbrae	Marin Healthcare District	5
10	Chinese HospitalSan Francisco	Chinese Hospital	3

Top 10 of 25 San Francisco hospitals with an affiliated gastroenterologistAll 13 San Francisco hospitals

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Source: Dmand AI Affiliation Data

Most San Francisco gastroenterologists practice at a hospital: 61 of the 68 with a mapped site

37 also practice at a medical group site, and 14 at an ambulatory surgery center. A gastroenterologist can practice at several kinds of site, so the shares overlap.

San Francisco gastroenterologists by site of care

Hospitals6190%
Medical group practices3754%
Ambulatory surgery centers1421%
Physician offices69%

Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

29% of San Francisco gastroenterologists finished medical school 30 or more years ago

17 of the 59 San Francisco gastroenterologists with a graduation year on file. 5 graduated in the last 10 years, fewer than graduated 40 or more years ago.

Physicians by years since medical school

Under 10 years ago58%
10 to 19 years ago2136%
20 to 29 years ago1627%
30 to 39 years ago610%
40 or more years ago1119%

Source: Dmand AI Professional Profile Data

Every San Francisco gastroenterologist profile shows current hospitals and groups, Medicare activity and NPI details

Primary practiceThe main place they practice, with its type and cityOn every profile
Every site of careEach hospital, clinic and group where they practice nowWith a free account
EmployerThe organization they work for, when one is on fileWith a free account
Medicare servicesServices and procedure codes billed to Medicare, from CMSOn every profile
Medicare Part D prescribingClaims and drug costs from Part D, from CMSOn every profile
Industry paymentsPayments from drug and device makers, from CMS Open PaymentsOn every profile
Publications and clinical trialsResearch papers and trials linked to the NPI, when on fileOn every profile
Licenses and graduation yearState license numbers and medical school graduation yearOn every profile
NPI detailsNPI, enumeration date, primary taxonomy and practice addressOn every profile
Work email and mobile numberFound on request through healthcare waterfall enrichment, then validatedWith a free account
EHR in useThe EHR at each site where they practiceWith a free account
Colleagues at each siteThe clinicians they work with at each hospital and groupWith a free account

Free account: 30 days free, self-serve, no credit card.

Sources: NPPES NPI Registry (CMS), Medicare Physician & Other Practitioners (CMS), Open Payments (CMS) and Dmand AI Affiliation Data

Sources for the San Francisco gastroenterologist directory

Sources for the data on this page
Data on this page	Source
HCPs, types and specialties	NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data
Sites of care, hospitals and medical groups	Dmand AI Affiliation Data
Medical school graduation year	Dmand AI Professional Profile Data

Data last refreshed October 2026Report an inaccuracy Remove my information

Gastroenterologists are HCPs whose primary specialty is gastroenterology (taxonomy code 207RG0100X), with an active NPI and a San Francisco practice address.

FAQ

Frequently asked questions about gastroenterologists in San Francisco

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

How many gastroenterologists are in San Francisco?

85 gastroenterologists have an active NPI, a San Francisco practice address and gastroenterology (taxonomy code 207RG0100X) as their primary specialty. 68 of them are linked to a hospital or medical group.

Which San Francisco medical groups have the most gastroenterologists?

UCSF Pediatrics, with 24, followed by UCSF Medical Group with 23 and UCSF Division of General Internal Medicine with 23.

Which San Francisco hospitals have the most gastroenterologists?

California Pacific Medical Center Van Ness Campus, with 22 affiliated gastroenterologists, followed by UCSF Helen Diller Medical Center at Parnassus Heights with 22 and California Pacific Medical Center Davies Campus with 18.

What share of San Francisco gastroenterologists practice at a hospital?

61 of the 68 San Francisco gastroenterologists with a mapped site of care, or 90%, have a current hospital affiliation.

What is the taxonomy code for gastroenterology?

207RG0100X is the NPPES taxonomy code for gastroenterology. Sub-specialties with their own code are counted on their own lists.

How can I contact gastroenterologists in San Francisco?

Dmand AI finds validated work emails, mobile numbers and practice phone numbers for gastroenterologists in San Francisco through healthcare waterfall enrichment, matched to the site where each one practices now. They are available with a free Dmand AI account: 30 days free, self-serve, no credit card.

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