Updated October 2026

Gastroenterologists in Providence, RI

Gastroenterology
Providence, Rhode Island

Gastroenterologists: 52
Linked to a hospital or group: 48
Hospitals with a gastroenterologist: 9
Medical groups with a gastroenterologist: 9
Practice at a hospital: 42

There are 52 gastroenterologists in Providence. University Gastroenterology has the most, 23, and The Miriam Hospital has the most affiliated gastroenterologists, 35. 51% finished medical school 30 or more years ago.

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Providence gastroenterologists, listed A to Z by last name

Each gastroenterologist on the list has gastroenterology as their primary specialty and a Providence 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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Providence gastroenterologists, A to Z
Gastroenterologist	Hospitals	Medical groups	Email and phone
Thaer Saqer Mustafa Abdelfattah, MDNPI 1346796091	3 hospitals	3 groups	Contacts
Alyn Louise Adrain, MDNPI 1225027766	1 hospital	2 groups	Contacts
Mahmoud Ahmed Rahal, MDNPI 1104346733	2 hospitals	2 groups	Contacts
Paul A. Akerman, MDNPI 1942302773	3 hospitals	3 groups	Contacts
Leslie E. Cashel, MDNPI 1861585515	-	2 groups	Contacts
William T. Chen, MDNPI 1467546051	3 hospitals	3 groups	Contacts
Thomas D. Denucci, MDNPI 1033291570	-	3 groups	Contacts
Christy Dibble, MDNPI 1043240062	-	1 group	Contacts
Valley C. Dreisbach, MDNPI 1629250527	1 hospital	2 groups	Contacts
Mariam Fayek, MDNPI 1316997588	3 hospitals	1 group	Contacts
Jason D. Ferreira, MDNPI 1194952929	5 hospitals	2 groups	Contacts
Sean D. Fine, MDNPI 1114210267	2 hospitals	3 groups	Contacts
Tian Gao, MDNPI 1306073846	2 hospitals	2 groups	Contacts
Neil Robert Greenspan, MDNPI 1023007556	2 hospitals	2 groups	Contacts
Daniel Greenwald, MDNPI 1578902417	1 hospital	2 groups	Contacts
Fadlallah G. Habr, MDNPI 1619924651	2 hospitals	3 groups	Contacts
Alexander J. Harmatz, MDNPI 1730142696	3 hospitals	2 groups	Contacts
Brett David Kalmowitz, MDNPI 1700817269	3 hospitals	2 groups	Contacts
Sulman Rahim KhanNPI 1841931441	1 hospital	-	Contacts
Sheldon Lidofsky, MDNPI 1447336904	4 hospitals	3 groups	Contacts
Peter Scott Margolis, MDNPI 1659457133	3 hospitals	3 groups	Contacts
Philip A. McAndrew, MDNPI 1376614966	3 hospitals	2 groups	Contacts
Paige McLean Diaz, MDNPI 1235669474	2 hospitals	3 groups	Contacts
Steven F. Moss, MDNPI 1235186735	2 hospitals	2 groups	Contacts
Lisa A. Mueller, MDNPI 1063583383	3 hospitals	3 groups	Contacts
Jeffrey D. Nadelson, MDNPI 1619263399	1 hospital	1 group	Contacts
John Paul Nsubuga, MDNPI 1164089777	2 hospitals	1 group	Contacts
Nnenna Chinyere Okpara, MDNPI 1093813313	2 hospitals	1 group	Contacts
Kevin S. Palumbo, MDNPI 1811068141	1 hospital	3 groups	Contacts
Theodore C. Palumbo, MDNPI 1578634812	-	3 groups	Contacts
Lisa Ann Panzini, MDNPI 1821132432	1 hospital	4 groups	Contacts
Edward A. Pensa, MDNPI 1710058052	3 hospitals	3 groups	Contacts
Pranith Nuwan Perera, MDNPI 1831361591	5 hospitals	2 groups	Contacts
Amanda B. Pressman, MDNPI 1124059696	2 hospitals	2 groups	Contacts
Kittichai Promrat, MDNPI 1356398390	2 hospitals	3 groups	Contacts
Herbert Rakatansky, MDNPI 1841289360	-	-	Contacts
Harlan G. Rich, MDNPI 1912947045	2 hospitals	3 groups	Contacts
Mark A. Robbin, MDNPI 1215927074	-	1 group	Contacts
Emily Laura Romanoff, MDNPI 1437787892	1 hospital	-	Contacts
Breton N. Roussel, MDNPI 1215385661	3 hospitals	4 groups	Contacts
David Schreiber, MDNPI 1952390213	2 hospitals	2 groups	Contacts
Thomas E. Sepe, MDNPI 1508937889	2 hospitals	4 groups	Contacts
Samir Ashok Shah, MDNPI 1043209398	2 hospitals	2 groups	Contacts
Shannon SimmonsNPI 1619210630	2 hospitals	2 groups	Contacts
Jeremy Spector, MDNPI 1992794408	3 hospitals	2 groups	Contacts
Joel S. Spellun, MDNPI 1295785251	-	1 group	Contacts
Nabil Anis Toubia, MDNPI 1922065200	5 hospitals	2 groups	Contacts
Paul E.a. Vanzuiden, MDNPI 1194896480	-	2 groups	Contacts
Li Wang, MDNPI 1477915478	2 hospitals	3 groups	Contacts

The list shows the 49 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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University Gastroenterology has the most gastroenterologists in Providence, with 23

Brown Health Medical Group is second with 11, and Gastroenterology Associates third with 9. Counts are gastroenterologists with a Rhode Island address linked to each group.

Medical groups with the most gastroenterologists in Providence
#	Medical group	Parent organization	Gastroenterologists
1	University GastroenterologyProvidence	Parent on file	23
2	Brown Health Medical GroupProvidence	Parent on file	11
3	Gastroenterology AssociatesProvidence	-	9
4	Rhode Island HospitalProvidence	Parent on file	8
5	Brown MedicineRiverside	Parent on file	6
6	CharterCARE Medical AssociatesCranston	Parent on file	5
7	Care New England Medical GroupWarwick	Parent on file	4
8	CharterCARE Medical AssociatesCranston	Parent on file	4
9	The Miriam HospitalProvidence	Parent on file	2

Top 9 of 9 Providence medical groups with a gastroenterologist

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

The Miriam Hospital has the most affiliated gastroenterologists in Providence, with 35

Rhode Island Hospital is second with 25, and Kent Hospital third with 10. Providence gastroenterologists are affiliated with 9 hospitals in all.

Hospitals with the most gastroenterologists in Providence
#	Hospital	Health system	Gastroenterologists
1	The Miriam HospitalProvidence	Brown University Health	35
2	Rhode Island HospitalProvidence	Brown University Health	25
3	Kent HospitalWarwick	Care New England Health System	10
4	Roger Williams Medical CenterProvidence	CharterCARE Health Partners	9
5	Women & Infants Hospital of Rhode IslandProvidence	Care New England Health System	6
6	Our Lady of Fatima HospitalNorth Providence	CharterCARE Health Partners	5
7	Newport HospitalNewport	Brown University Health	2
8	South County HospitalWakefield	South County Health	1
9	Providence VA Medical CenterProvidence	Veterans Health Administration	1

Top 9 of 9 Providence hospitals with an affiliated gastroenterologistAll 6 Providence hospitals

See every hospital and group for each Providence gastroenterologist

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Source: Dmand AI Affiliation Data

Most Providence gastroenterologists practice at a hospital: 42 of the 48 with a mapped site

26 also practice at an ambulatory surgery center, and 25 at a medical group site. A gastroenterologist can practice at several kinds of site, so the shares overlap.

Providence gastroenterologists by site of care

Hospitals4288%
Ambulatory surgery centers2654%
Medical group practices2552%

Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

51% of Providence gastroenterologists finished medical school 30 or more years ago

22 of the 43 Providence 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 ago1126%
20 to 29 years ago819%
30 to 39 years ago1330%
40 or more years ago921%

Source: Dmand AI Professional Profile Data

Every Providence 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 Providence 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 Providence practice address.

FAQ

Frequently asked questions about gastroenterologists in Providence

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 Providence?

52 gastroenterologists have an active NPI, a Providence practice address and gastroenterology (taxonomy code 207RG0100X) as their primary specialty. 48 of them are linked to a hospital or medical group.

Which Providence medical groups have the most gastroenterologists?

University Gastroenterology, with 23, followed by Brown Health Medical Group with 11 and Gastroenterology Associates with 9.

Which Providence hospitals have the most gastroenterologists?

The Miriam Hospital, with 35 affiliated gastroenterologists, followed by Rhode Island Hospital with 25 and Kent Hospital with 10.

What share of Providence gastroenterologists practice at a hospital?

42 of the 48 Providence 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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