Updated October 2026

Gastroenterologists in Grand Rapids, MI

Gastroenterology
Grand Rapids, Michigan

Gastroenterologists: 40
Linked to a hospital or group: 37
Hospitals with a gastroenterologist: 21
Medical groups with a gastroenterologist: 14
Practice at a hospital: 36

There are 40 gastroenterologists in Grand Rapids. Corewell Health Medical Group West has the most, 19, and Corewell Health Grand Rapids Hospitals - Butterworth has the most affiliated gastroenterologists, 30. 32% finished medical school 30 or more years ago.

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Grand Rapids gastroenterologists, listed A to Z by last name

Each gastroenterologist on the list has gastroenterology as their primary specialty and a Grand Rapids 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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Grand Rapids gastroenterologists, A to Z
Gastroenterologist	Hospitals	Medical groups	Email and phone
Asif Azeem, MDNPI 1932288248	5 hospitals	5 groups	Contacts
Shahid Aziz, DONPI 1588616205	4 hospitals	2 groups	Contacts
Jeremy David Barber, DONPI 1417177866	5 hospitals	3 groups	Contacts
Catherine Bartnik, MD, MPHNPI 1548688773	5 hospitals	2 groups	Contacts
Patrick Ray Brown, DONPI 1396108320	2 hospitals	2 groups	Contacts
Mark Gregory Cooper, MDNPI 1164866430	1 hospital	1 group	Contacts
James A. Doull III, MDNPI 1912073677	-	1 group	Contacts
John P. Egan Jr., MDNPI 1689665549	1 hospital	-	Contacts
Courtney Ferch, MDNPI 1316176282	4 hospitals	2 groups	Contacts
Bachar Hamad, MDNPI 1780690040	5 hospitals	5 groups	Contacts
Jesse Frank Hartpence, DONPI 1447784202	4 hospitals	4 groups	Contacts
Sumera Irie Ilyas, MDNPI 1427283381	2 hospitals	1 group	Contacts
Srinivas K. Janardan, MDNPI 1770588279	1 hospital	1 group	Contacts
Lia C. Kaufman, MDNPI 1790915361	5 hospitals	2 groups	Contacts
Ben J. Kieff, MDNPI 1760421440	4 hospitals	2 groups	Contacts
Randall Scott Meisner, MDNPI 1003869215	2 hospitals	2 groups	Contacts
Krishna Chaitanya Meka, DONPI 1043698988	3 hospitals	2 groups	Contacts
Matthew Moeller, MDNPI 1386763704	4 hospitals	3 groups	Contacts
Dilip K. Moonka, MDNPI 1982772430	5 hospitals	2 groups	Contacts
Jay Bradley Morrow, MDNPI 1215932710	1 hospital	1 group	Contacts
Christopher John Murphy, MDNPI 1114285558	1 hospital	1 group	Contacts
Lindsay Smith Negash, DONPI 1649581810	2 hospitals	2 groups	Contacts
Matthew James Nelson, MDNPI 1760724132	4 hospitals	2 groups	Contacts
John Paul Papp Jr., MDNPI 1417932872	1 hospital	1 group	Contacts
Heidi Lynn Putt, DONPI 1114969888	1 hospital	2 groups	Contacts
Christopher Cairns Radawski, MDNPI 1659575017	3 hospitals	4 groups	Contacts
Thomas H. Rupp, MDNPI 1477593473	4 hospitals	2 groups	Contacts
Praveen Sateesh, MDNPI 1629218219	2 hospitals	1 group	Contacts
Andrew B. Shreiner, MDNPI 1437461639	2 hospitals	2 groups	Contacts
Stephen Gabriel Simmer, MDNPI 1972953917	3 hospitals	3 groups	Contacts
Nino Pio Soave, DONPI 1053539007	2 hospitals	2 groups	Contacts
Dana Marie Stewart, DONPI 1588939433	2 hospitals	2 groups	Contacts
Amanda SuNPI 1306334131	6 hospitals	2 groups	Contacts
Tammy Theresa Tran-Yang, DONPI 1578856530	1 hospital	2 groups	Contacts
Curtis Randall Weaver, MDNPI 1548382773	1 hospital	1 group	Contacts
Ryan Joshua Wong, MDNPI 1497070718	4 hospitals	2 groups	Contacts
Eugene Zolotarevsky, MDNPI 1508989633	5 hospitals	4 groups	Contacts

Showing 1 to 10 of 37 Grand Rapids gastroenterologists

The list shows the 37 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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Corewell Health Medical Group West has the most gastroenterologists in Grand Rapids, with 19

Trinity Health Medical Group is second with 7, and Corewell Health Medical Group South third with 3. Counts are gastroenterologists with a Michigan address linked to each group.

Medical groups with the most gastroenterologists in Grand Rapids
#	Medical group	Parent organization	Gastroenterologists
1	Corewell Health Medical Group WestGrand Rapids	Parent on file	19
2	Trinity Health Medical GroupGrand Rapids	Parent on file	7
3	Corewell Health Medical Group SouthSaint Joseph	Parent on file	3
4	Bronson Medical GroupKalamazoo	Parent on file	3
5	Henry Ford HealthDetroit	Parent on file	3
6	Henry Ford Jackson Hospital (formerly Henry Ford Allegiance Health)Jackson	Parent on file	2
7	Trinity Health Medical Group, Gastroenterology - MuskegonMuskegon	Parent on file	1
8	Covenant Medical GroupSaginaw	Parent on file	1
9	Ascension BorgessKalamazoo	Parent on file	1
10	University of Michigan Health-West Hospital (formerly Metro Health Hospital)Wyoming	Parent on file	1

Top 10 of 14 Grand Rapids medical groups with a gastroenterologist

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

Corewell Health Grand Rapids Hospitals - Butterworth has the most affiliated gastroenterologists in Grand Rapids, with 30

Corewell Health Greenville Hospital is second with 10, and Corewell Health Pennock Hospital third with 9. Grand Rapids gastroenterologists are affiliated with 21 hospitals in all.

Hospitals with the most gastroenterologists in Grand Rapids
#	Hospital	Health system	Gastroenterologists
1	Corewell Health Grand Rapids Hospitals - ButterworthGrand Rapids	Corewell Health	30
2	Corewell Health Greenville HospitalGreenville	Corewell Health	10
3	Corewell Health Pennock HospitalHastings	Corewell Health	9
4	Trinity Health Grand Rapids HospitalGrand Rapids	Trinity Health	8
5	Corewell Health Zeeland HospitalZeeland	Corewell Health	7
6	Corewell Health Big Rapids HospitalBig Rapids	Corewell Health	7
7	Corewell Health Gerber HospitalFremont	Corewell Health	5
8	Corewell Health Ludington HospitalLudington	Corewell Health	3
9	Bronson Methodist HospitalKalamazoo	Bronson Healthcare Group	2
10	Henry Ford Macomb HospitalClinton Twp	Henry Ford Health	2

Top 10 of 21 Grand Rapids hospitals with an affiliated gastroenterologistAll 6 Grand Rapids hospitals

See every hospital and group for each Grand Rapids gastroenterologist

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Source: Dmand AI Affiliation Data

Most Grand Rapids gastroenterologists practice at a hospital: 36 of the 37 with a mapped site

32 also practice at a medical group site, and 7 at an ambulatory surgery center. A gastroenterologist can practice at several kinds of site, so the shares overlap.

Grand Rapids gastroenterologists by site of care

Hospitals3697%
Medical group practices3286%
Ambulatory surgery centers719%

Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

32% of Grand Rapids gastroenterologists finished medical school 30 or more years ago

12 of the 37 Grand Rapids 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 ago25%
10 to 19 years ago1541%
20 to 29 years ago822%
30 to 39 years ago616%
40 or more years ago616%

Source: Dmand AI Professional Profile Data

Every Grand Rapids 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 Grand Rapids 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 Grand Rapids practice address.

FAQ

Frequently asked questions about gastroenterologists in Grand Rapids

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 Grand Rapids?

40 gastroenterologists have an active NPI, a Grand Rapids practice address and gastroenterology (taxonomy code 207RG0100X) as their primary specialty. 37 of them are linked to a hospital or medical group.

Which Grand Rapids medical groups have the most gastroenterologists?

Corewell Health Medical Group West, with 19, followed by Trinity Health Medical Group with 7 and Corewell Health Medical Group South with 3.

Which Grand Rapids hospitals have the most gastroenterologists?

Corewell Health Grand Rapids Hospitals - Butterworth, with 30 affiliated gastroenterologists, followed by Corewell Health Greenville Hospital with 10 and Corewell Health Pennock Hospital with 9.

What share of Grand Rapids gastroenterologists practice at a hospital?

36 of the 37 Grand Rapids gastroenterologists with a mapped site of care, or 97%, 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 Grand Rapids?

Dmand AI finds validated work emails, mobile numbers and practice phone numbers for gastroenterologists in Grand Rapids 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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