Updated October 2026

Gastroenterologists in Santa Monica, CA

Gastroenterology
Santa Monica, California

Gastroenterologists: 44
Linked to a hospital or group: 41
Hospitals with a gastroenterologist: 12
Medical groups with a gastroenterologist: 7
Practice at a hospital: 36

There are 44 gastroenterologists in Santa Monica. UCLA Medical Group has the most, 23, and UCLA Santa Monica Medical Center has the most affiliated gastroenterologists, 24. 29% finished medical school 30 or more years ago.

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Santa Monica gastroenterologists, listed A to Z by last name

Each gastroenterologist on the list has gastroenterology as their primary specialty and a Santa Monica 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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Santa Monica gastroenterologists, A to Z
Gastroenterologist	Hospitals	Medical groups	Email and phone
Sadeea Qureshi Abbasi, MD, PhDNPI 1366713513	2 hospitals	1 group	Contacts
Parviz D. Afshani, MDNPI 1083693766	-	2 groups	Contacts
Rudolph A. Bedford, MDNPI 1902885684	3 hospitals	4 groups	Contacts
Lynn Shapiro Connolly, MDNPI 1063694289	2 hospitals	1 group	Contacts
Richard F. Corlin, MDNPI 1649259268	-	2 groups	Contacts
Vivy Tran CusumanoNPI 1639600638	2 hospitals	1 group	Contacts
Rahul Dixit, MDNPI 1508073057	1 hospital	4 groups	Contacts
Sterling Myles Dubin, MDNPI 1215223474	2 hospitals	2 groups	Contacts
Eric Esrailian, MDNPI 1821021130	2 hospitals	1 group	Contacts
Mary Farid, DONPI 1922189216	2 hospitals	2 groups	Contacts
Charles Joseph Frankel, MDNPI 1558310805	1 hospital	1 group	Contacts
Terri Ellen Getzug, MDNPI 1982629176	2 hospitals	1 group	Contacts
Jerry Lee Greenburg, MDNPI 1417010695	1 hospital	-	Contacts
Marc H. Harwitt, MDNPI 1285613943	-	3 groups	Contacts
Danice Hertz, MDNPI 1760431027	-	3 groups	Contacts
Wendy Weiting Ho, MDNPI 1750362570	2 hospitals	1 group	Contacts
Daniel W. Hommes, MDNPI 1891067153	-	-	Contacts
Danny Issa, MDNPI 1750631396	5 hospitals	1 group	Contacts
Ara A. Kardashian, MDNPI 1265703102	4 hospitals	2 groups	Contacts
William Nelson Katkov, MDNPI 1386693646	2 hospitals	4 groups	Contacts
Stephen Kim, MDNPI 1215158829	2 hospitals	2 groups	Contacts
Chanthel Melissa Kokoy-Mondragon, MDNPI 1093178659	3 hospitals	1 group	Contacts
Daisy S. Lankarani, MDNPI 1881078467	1 hospital	3 groups	Contacts
Berkeley Nguyen Limketkai, MDNPI 1962609636	2 hospitals	1 group	Contacts
Lenna Alessandra Martyak, MDNPI 1164638177	1 hospital	4 groups	Contacts
Laura A. McEnerney, MDNPI 1558632208	3 hospitals	2 groups	Contacts
Carl E. Nordstrom, MDNPI 1528298528	2 hospitals	1 group	Contacts
Benjamin Francis NulsenNPI 1467795377	2 hospitals	1 group	Contacts
Mark Ovsiowitz, MDNPI 1881712370	2 hospitals	1 group	Contacts
Joseph Rocco Pisegna, MDNPI 1295755882	2 hospitals	1 group	Contacts
Michael Gin Quon, MDNPI 1609802032	2 hospitals	2 groups	Contacts
Louis Ravitz, MDNPI 1003863283	-	-	Contacts
Claudia Patricia Sanmiguel, MDNPI 1144474610	1 hospital	4 groups	Contacts
Kareem H. Sassi, MDNPI 1164723839	2 hospitals	1 group	Contacts
Jenny SaukNPI 1376703280	2 hospitals	1 group	Contacts
Samik Samir ShahNPI 1346696333	4 hospitals	1 group	Contacts
Kamyar Shahedi, MDNPI 1780818823	1 hospital	4 groups	Contacts
Demetrios George StavrakisNPI 1780118968	5 hospitals	1 group	Contacts
James H. Sul, MDNPI 1346260346	1 hospital	4 groups	Contacts
Adarsh Thaker, MDNPI 1316200777	3 hospitals	1 group	Contacts
Tram T. Tran, MDNPI 1437187234	1 hospital	1 group	Contacts
Marc David Wishingrad, MDNPI 1093764359	3 hospitals	4 groups	Contacts

The list shows the 42 gastroenterologists with a public profile. The other 2 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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UCLA Medical Group has the most gastroenterologists in Santa Monica, with 23

Saint John's Physician Partners is second with 8, and Digestive Health Associates third with 7. Counts are gastroenterologists with a California address linked to each group.

Medical groups with the most gastroenterologists in Santa Monica
#	Medical group	Parent organization	Gastroenterologists
1	UCLA Medical GroupLos Angeles	Parent on file	23
2	Saint John's Physician PartnersSanta Monica	Parent on file	8
3	Digestive Health AssociatesSanta Monica	-	7
4	Harbor-UCLA Medical CenterTorrance	Parent on file	5
5	Cedars-Sinai Medical GroupLos Angeles	Parent on file	4
6	Unio Specialty Care, Urology, Encinitas (formerly Genesis Healthcare Partners)Encinitas	Parent on file	1
7	UC San Diego HealthLos Angeles	Parent on file	1

Top 7 of 7 Santa Monica medical groups with a gastroenterologist

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

UCLA Santa Monica Medical Center has the most affiliated gastroenterologists in Santa Monica, with 24

Ronald Reagan UCLA Medical Center is second with 22, and Providence Saint John's Health Center third with 9. Santa Monica gastroenterologists are affiliated with 12 hospitals in all.

Hospitals with the most gastroenterologists in Santa Monica
#	Hospital	Health system	Gastroenterologists
1	UCLA Santa Monica Medical CenterSanta Monica	University of California Health	24
2	Ronald Reagan UCLA Medical CenterLos Angeles	University of California Health	22
3	Providence Saint John's Health CenterSanta Monica	Providence	9
4	Henry Mayo Newhall HospitalValencia	Henry Mayo Newhall Hospital	5
5	UCLA West Valley Medical CenterWest Hills	University of California Health	4
6	Cedars-Sinai Medical CenterLos Angeles	Cedars-Sinai Health System	4
7	Cedars-Sinai Marina HospitalMarina Del Rey	Cedars-Sinai Health System	4
8	Los Robles Regional Medical CenterThousand Oaks	HCA Healthcare	2
9	Olive View-UCLA Medical CenterSylmar	County of Los Angeles	1
10	Providence Saint Joseph Medical CenterBurbank	Providence	1

Top 10 of 12 Santa Monica hospitals with an affiliated gastroenterologist

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Source: Dmand AI Affiliation Data

Most Santa Monica gastroenterologists practice at a hospital: 36 of the 41 with a mapped site

35 also practice at a medical group site. A gastroenterologist can practice at several kinds of site, so the shares overlap.

Santa Monica gastroenterologists by site of care

Hospitals3688%
Medical group practices3585%

Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

29% of Santa Monica gastroenterologists finished medical school 30 or more years ago

10 of the 35 Santa Monica gastroenterologists with a graduation year on file. 2 graduated in the last 10 years, fewer than graduated 40 or more years ago.

Physicians by years since medical school

Under 10 years ago26%
10 to 19 years ago1543%
20 to 29 years ago823%
30 to 39 years ago514%
40 or more years ago514%

Source: Dmand AI Professional Profile Data

Every Santa Monica 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 Santa Monica 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 Santa Monica practice address.

FAQ

Frequently asked questions about gastroenterologists in Santa Monica

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 Santa Monica?

44 gastroenterologists have an active NPI, a Santa Monica practice address and gastroenterology (taxonomy code 207RG0100X) as their primary specialty. 41 of them are linked to a hospital or medical group.

Which Santa Monica medical groups have the most gastroenterologists?

UCLA Medical Group, with 23, followed by Saint John's Physician Partners with 8 and Digestive Health Associates with 7.

Which Santa Monica hospitals have the most gastroenterologists?

UCLA Santa Monica Medical Center, with 24 affiliated gastroenterologists, followed by Ronald Reagan UCLA Medical Center with 22 and Providence Saint John's Health Center with 9.

What share of Santa Monica gastroenterologists practice at a hospital?

36 of the 41 Santa Monica gastroenterologists with a mapped site of care, or 88%, 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.

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