NPPES file of Aug 9, 2026

Gastroenterology Physician in Maryland

505 NPPES records list gastroenterology physician with a practice address in Maryland, 8.2 per 100,000 residents, the 6th highest rate of 51. Baltimore and Rockville have the most; each record links to the provider's NPI and the Maryland license search. Page 6 of 11.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RG0100X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Baltimore has the most, 131

  1. Baltimore131
  2. Rockville38
  3. Bethesda35
  4. Columbia25
  5. Frederick24

Gastroenterology Physician records in Maryland

  1. Kathryn Kirk, MDChevy Chase, MD 208151477655371
  2. Jonathan Kittle, DOBethesda, MD 208891508482761
  3. Lee Klepper, MDBerlin, MD 218111649268004
  4. Robert Knodell, M.D.Towson, MD 212041710910161
  5. Milton Koch, M.D.Silver Spring, MD 209011275510257
  6. Jonathan Koff, M.D.Chevy Chase, MD 208151104926302
  7. Ruhail Kohli, M.D.Baltimore, MD 212241124374418
  8. Julia Korenman, MDRockville, MD 208501780678946
  9. Louis Korman, M.D.Chevy Chase, MD 208151447229968
  10. Marc Kozam, MDOlney, MD 208321821074014
  11. Ryan Kozloski, MDBethesda, MD 208891245807908
  12. Vishnupriya Krishna, MDAnnapolis, MD 214011902822299
  13. Erin Krstanovic, CRNP- ADULTFrederick, MD 217021588317572
  14. George Kunnackal John, M.D., MSCBaltimore, MD 212011639432834
  15. George Kurian, M.D.Glen Burnie, MD 210611285663070
  16. Jeffrey Laczek, M.D.Bethesda, MD 208891467437186
  17. Chunwei Lai, M.D., PH.D.Hagerstown, MD 217421134568306
  18. Nii Lamptey-Mills, M.DCumberland, MD 215021689659997
  19. Eric Lavery, M.D.Oxon Hill, MD 207451720059843
  20. Marvin Lawrence, M.D.Laurel, MD 207071699770255
  21. Mark Lazarev, M.D.Baltimore, MD 212871104094739
  22. Loc Le, M.D.Baltimore, MD 212081194710517
  23. Christopher Lee, M.D.Fort Meade, MD 207551699745372
  24. Howard Lee, M.D.Joint Base Andrews, MD 207621902267396
  25. Linda Lee, M.D.Towson, MD 212041639155294
  26. Zone-En Lee, MDLargo, MD 207741437316593
  27. Alfred Lee-Young, M.D.Westminster, MD 211571689732240
  28. Sheila Levin, MDRockville, MD 208501003800251
  29. Arnold Levy, M.D.Silver Spring, MD 209011386701993
  30. Christine Lewis, M.D.Hagerstown, MD 217421659361723
  31. Zhiping Li, MDBaltimore, MD 212871548204944
  32. Joseph Lin, M.D.Baltimore, MD 212341801810601
  33. Gordon Liss, MDFrederick, MD 217011669620746
  34. Zurabi Lominadze, M.D.Baltimore, MD 212011033472071
  35. Leigh Lurie, MDRockville, MD 208501427225887
  36. Sylvester Luu, D.O., FACPJb Andrews, MD 207621730542853
  37. Michelle Ma, MDBaltimore, MD 212871457796153
  38. Jared Magee, DO,MPHBethesda, MD 208891699133900
  39. Anurag Maheshwari, M.D.Baltimore, MD 212021700847860
  40. Homayoon Mahjoob, M.D.Glenn Dale, MD 207691740494178
  41. Alexander MamunesColumbia, MD 210451205368891
  42. Alif Manejwala, MDGlen Burnie, MD 210611679681902
  43. Zara Manuelyan, M.D.Baltimore, MD 212871750744314
  44. Napoleon Marcelo, M.D.Bowie, MD 207161700833365
  45. Kenneth Margolis, M.D.Baltimore, MD 212371700826930
  46. Eric Margulies, MDSilver Spring, MD 209011538629654
  47. Lester Marion, MDChevy Chase, MD 208151336151711
  48. Robert Mathieson, M.D.Baltimore, MD 212181982701959
  49. John McCarthy, M.D., M.SC.Bethesda, MD 208891508129677
  50. Alexis McCary, M.D.Upper Marlboro, MD 207741205012309

Source: CMS NPPES, primary taxonomy 207RG0100X: records by practice city and the list of records, file of Aug 9, 2026.

Maryland ranks 6 of 51 per resident

  1. Connecticut9.3
  2. New York9.2
  3. Rhode Island8.8
  4. Maryland8.2
  5. Pennsylvania8.1
  6. Minnesota8.0
  7. 50 states and D.C.6.2

Source: CMS NPPES, primary taxonomy 207RG0100X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

80.6% of these records appear in a Medicare file, against 84.4% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Maryland80.6%
  2. United States84.4%

Gastroenterology Physician records in Maryland, measured

  • In a Medicare file407 of 505 · 80.6% here, 84.4% nationally
  • In the CMS Doctors and Clinicians file344 · 68.1% here, 73.7% nationally
  • Not updated in five years or more310 · 61.4% here, 55.6% nationally
  • Median graduation year2002 · the 344 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RG0100X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

505 NPPES records list gastroenterology physician (207RG0100X) as their primary taxonomy with a practice address in Maryland: 8.2 per 100,000 residents against 6.2 nationally (50 states and D.C.). Baltimore has 131 of them (26%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Georgia530
  2. Washington533
  3. Virginia536
  4. Michigan550

States with a similar rate per 100,000

  1. Pennsylvania8.1
  2. Minnesota8.0
  3. New Jersey7.9
  4. New Hampshire7.8

The largest states

  1. California2,140
  2. New York1,797
  3. Florida1,513
  4. Texas1,478
  5. Pennsylvania1,049

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.