Gastroenterologists in District of Columbia

  • Gastroenterology
  • District of Columbia
Gastroenterologists
83
Linked to a hospital or group
68
Hospitals with a gastroenterologist
6
Medical groups with a gastroenterologist
6
Cities
1

There are 83 gastroenterologists in District of Columbia. MedStar Georgetown University Hospital has the most, 7, and MedStar Georgetown University Hospital has the most affiliated gastroenterologists, 19. Washington is home to 83, and 32% finished medical school 30 or more years ago.

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District of Columbia gastroenterologists, listed A to Z by last name

Each gastroenterologist on the list has gastroenterology as their primary specialty and a District of Columbia practice address. The list shows the NPI and city, 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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Sort and filter all 83 District of Columbia gastroenterologists by city, hospital, medical group, the EHR they use and Medicare volume in Dmand AI.

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District of Columbia gastroenterologists, A to Z
GastroenterologistHospitalsMedical groupsEmail and phone
Amro Abdellatief, MDWashington · NPI 19327370201 hospital3 groupsContacts
Tsion Abdi, MDWashington · NPI 18819196373 hospitals2 groupsContacts
Sneha Rao Rao Adidam, MDWashington · NPI 19125299751 hospital1 groupContacts
Farshad Aduli, MDWashington · NPI 10039413781 hospital1 groupContacts
Bilal Ali, MDWashington · NPI 11141194273 hospitals1 groupContacts
Ghassan A. Alzayer, MDWashington · NPI 13961448041 hospital1 groupContacts
Nikiya O. Asamoah-Clark, MDWashington · NPI 13364644782 hospitals1 groupContacts
Philip Assatourians, MDWashington · NPI 1104912617-1 groupContacts
Ayeetin Azah, MDWashington · NPI 1245625094--Contacts
Lindsay Jones Barnes, MDWashington · NPI 12654258701 hospital3 groupsContacts
Sumona BhattacharyaWashington · NPI 15982109731 hospital1 groupContacts
Olaya Isabella Brewer Gutierrez, MDWashington · NPI 16294209482 hospitals2 groupsContacts
John Edward CarrollWashington · NPI 17705818371 hospital1 groupContacts
Paul P. Chang, MDWashington · NPI 1265492409--Contacts
Aline J. Charabaty-PishvaianWashington · NPI 12856190802 hospitals3 groupsContacts
Po-Hung Chen, MDWashington · NPI 11545974823 hospitals2 groupsContacts
Alia Simjee Dadabhai, MDWashington · NPI 15787029242 hospitals3 groupsContacts
Doan DaoWashington · NPI 16990322503 hospitals2 groupsContacts
Mark Donowitz, MDWashington · NPI 1306893342--Contacts
Michele Patricia Fischer, MDWashington · NPI 10639751182 hospitals1 groupContacts
Michael Joseph Fisher, MDWashington · NPI 1679525059-1 groupContacts
James Hartman Frank, MDWashington · NPI 13563265241 hospital1 groupContacts
Junette Gibbons, MDWashington · NPI 1497941371-1 groupContacts
Michael S. Gold, MDWashington · NPI 1710938253--Contacts
Nadim HaddadWashington · NPI 16492784411 hospital1 groupContacts
Jisun Hahn, MDWashington · NPI 10434706281 hospital4 groupsContacts
Zadid Kamrul Haq, MDWashington · NPI 12458975373 hospitals2 groupsContacts
Samuel P. Harrington, MDWashington · NPI 1346356664-1 groupContacts
John Wesley Hogan, MDWashington · NPI 11140748381 hospital1 groupContacts
Stuart Lawrence Horwitz, MDWashington · NPI 1134180128-1 groupContacts
Dominique E. Howard, MDWashington · NPI 10836732221 hospital1 groupContacts
Christine Cho-Shing Hsu, MDWashington · NPI 1619127255-1 groupContacts
Momodu A. Jack, MDWashington · NPI 11645210191 hospital1 groupContacts
Raymond JanowskiWashington · NPI 14779721311 hospital3 groupsContacts
Joseph James Jennings, MDWashington · NPI 15384357142 hospitals2 groupsContacts
Melissa Gadsden Kaltenbach, MDWashington · NPI 17709452061 hospital-Contacts
Margaret Geraldine Keane, MBBS, MSWashington · NPI 17903186572 hospitals2 groupsContacts
Abdalla Fareed KhouqeerWashington · NPI 12255354122 hospitals1 groupContacts
Ruhail Kohli, MDWashington · NPI 11243744185 hospitals3 groupsContacts
Jessica Danielle Korman, MDWashington · NPI 12858604862 hospitals2 groupsContacts
Susan L. Laessig, MDWashington · NPI 1073525465-1 groupContacts
Adeyinka O. Laiyemo, MDWashington · NPI 18513741511 hospital1 groupContacts
Susan Kaufman Lazerow, MDWashington · NPI 16999245891 hospital-Contacts
James Hendricks LewisWashington · NPI 13967452121 hospital2 groupsContacts
Thomas M. Loughney, MDWashington · NPI 11645384842 hospitals2 groupsContacts
Bruce A. Luxon, MD, PhDWashington · NPI 14271535011 hospital2 groupsContacts
Gustavo Alfonso Marino, MDWashington · NPI 17302729561 hospital-Contacts
Charles Edward Mcqueen, MDWashington · NPI 1225134331--Contacts
Alireza Meighani, MDWashington · NPI 17507093331 hospital1 groupContacts
Getachew C. Mekasha, MD, PhDWashington · NPI 19129282431 hospital-Contacts

Showing 1 to 10 of 76 District of Columbia gastroenterologists

The list shows the 76 gastroenterologists with a public profile. The other 7 are counted in the total and searchable with a free account.

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

For health IT teams

Find District of Columbia gastroenterologists by the EHR they use

Dmand AI has the EHR for 69 of 83 District of Columbia 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.

MedStar Georgetown University Hospital has the most gastroenterologists in District of Columbia, with 7

The GW Medical Faculty Associates is second with 6, and Howard University Faculty Practice Plan third with 4. Counts are gastroenterologists with a Washington, DC address linked to each group.

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

MedStar Georgetown University Hospital has the most affiliated gastroenterologists in District of Columbia, with 19

Sibley Memorial Hospital in Washington is second with 17, and MedStar Washington Hospital Center third with 14. District of Columbia gastroenterologists are affiliated with 6 hospitals in all.

Hospitals with the most gastroenterologists in District of Columbia
#HospitalHealth systemGastroenterologists
1MedStar Georgetown University HospitalWashingtonMedStar Health19
2Sibley Memorial HospitalWashingtonJohns Hopkins Health System17
3MedStar Washington Hospital CenterWashingtonMedStar Health14
4Howard University HospitalWashingtonHoward University8
5Washington DC VA Medical CenterWashingtonVeterans Health Administration7
6The George Washington University HospitalWashingtonUniversal Health Services6

Top 6 of 6 District of Columbia hospitals with an affiliated gastroenterologistAll 13 Washington, DC hospitals

See every hospital and group for each District of Columbia gastroenterologist

Each public profile names one place a gastroenterologist practices. A free account shows all of them, with the employer, the EHR and validated contacts.

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Source: Dmand AI Affiliation Data

Washington has the most gastroenterologists in District of Columbia, with 83

Gastroenterologists practice in 1 District of Columbia cities. Every city with 10 or more has its own page.

Source: NPPES NPI Registry (CMS)

Most District of Columbia gastroenterologists practice at a hospital: 58 of the 67 with a mapped site

34 also practice at a medical group site, and 9 at an ambulatory surgery center. A gastroenterologist can practice at several kinds of site, so the shares overlap.

District of Columbia gastroenterologists by site of care

  1. Hospitals58
  2. Medical group practices34
  3. Ambulatory surgery centers9
  4. FQHCs1
  5. Physician offices1

Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

32% of District of Columbia gastroenterologists finished medical school 30 or more years ago

18 of the 57 District of Columbia 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

  1. Under 10 years ago5
  2. 10 to 19 years ago21
  3. 20 to 29 years ago13
  4. 30 to 39 years ago6
  5. 40 or more years ago12

Source: Dmand AI Professional Profile Data

Every District of Columbia 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 District of Columbia gastroenterologist directory

Sources for the data on this page
Data on this pageSource
HCPs, types and specialtiesNPPES NPI Registry (CMS) and Dmand AI Professional Profile Data
Sites of care, hospitals and medical groupsDmand AI Affiliation Data
Medical school graduation yearDmand AI Professional Profile Data

Data last refreshed October 2026Report an inaccuracyRemove my information

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

FAQ

Frequently asked questions about gastroenterologists in District of Columbia

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 District of Columbia?

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

Which District of Columbia medical groups have the most gastroenterologists?

MedStar Georgetown University Hospital, with 7, followed by The GW Medical Faculty Associates with 6 and Howard University Faculty Practice Plan with 4.

Which District of Columbia hospitals have the most gastroenterologists?

MedStar Georgetown University Hospital, with 19 affiliated gastroenterologists, followed by Sibley Memorial Hospital with 17 and MedStar Washington Hospital Center with 14.

How many District of Columbia gastroenterologists finished medical school 30 or more years ago?

18 of the 57 with a graduation year on file, or 32%. 5 graduated in the last 10 years.

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 District of Columbia?

Dmand AI finds validated work emails, mobile numbers and practice phone numbers for gastroenterologists in District of Columbia 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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Find the right contacts among District of Columbia gastroenterologists

Search 83 District of Columbia gastroenterologists by hospital, medical group and the EHR they use, with validated work emails and mobile numbers.

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