NPPES file of Aug 9, 2026

Colon & Rectal Surgery Physician in Maryland

32 NPPES records list colon & rectal surgery physician with a practice address in Maryland, 0.5 per 100,000 residents, the 34th highest rate of 50. Baltimore and Bethesda have the most; each record links to the provider's NPI and the Maryland license search.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 208C00000X · 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, 11

  1. Baltimore11
  2. Bethesda7
  3. Towson4
  4. Annapolis1
  5. Chevy Chase1

Colon & Rectal Surgery Physician records in Maryland

  1. Chady Atallah, M.D.Baltimore, MD 212871558637025
  2. Bradley Bennett, M.D.Rockville, MD 208521609985613
  3. Howard Berg, M.D.Owings Mills, MD 211171588667273
  4. Irina Bernescu, MDBaltimore, MD 212291174850952
  5. Evan Buckingham, M.D.Baltimore, MD 212011821417635
  6. Valerie Cabrera Leon, MDTowson, MD 212041235686288
  7. Kathryn Chu, M.D.Baltimore, MD 212871184770315
  8. Ivane Chua, MDTowson, MD 212041922325760
  9. Vincent Cifello, M.D.Glen Burnie, MD 210611609879295
  10. Joseph Dirocco, M.D.Towson, MD 212041326201328
  11. Lynda Dougherty, M.D.Oakland, MD 215501376534149
  12. James Duncan, M.D.Bethesda, MD 208891508867797
  13. Philip Ferris, M.D.Baltimore, MD 212371154464410
  14. Ada Graham, M.D.Bethesda, MD 208171902291081
  15. Hyungchul Kim, MDTowson, MD 212041912067901
  16. Elyse Leevan, M.D.Bethesda, MD 208891699116608
  17. David Lisle, M.D.Baltimore, MD 212101457645848
  18. Wei LiuBaltimore, MD 212181255836540
  19. Mary Teresa O'Donnell, M.D.Bethesda, MD 208891891016135
  20. Vivek Patil, M.D.Bethesda, MD 208171790942852
  21. Steven Proshan, MDAnnapolis, MD 214011487754933
  22. Benjamin Quartey, M.D.Bethesda, MD 208891023166782
  23. Bashar Safar, MDBaltimore, MD 212871932386422
  24. Matthew Skancke, M.D.Silver Spring, MD 209101376987065
  25. Justin Somerville, M.D.Columbia, MD 210441023016672
  26. Vernissia Tam, MDFrederick, MD 217021528344116
  27. Bindu Umapathi, M.D,MRCS,FACS,FASCRSChevy Chase, MD 208151790009413
  28. Debra Vachon, M.D.Baltimore, MD 212021710980305
  29. Joann Warrick, M.D.Baltimore, MD 212241922254002
  30. Joshua WolfBaltimore, MD 212151568637387
  31. Allen Wolland, M.D.Bethesda, MD 208171619919859
  32. James Zalucki, M.D.Ellicott City, MD 210421760485353

Source: CMS NPPES, primary taxonomy 208C00000X: records by practice city and the list of records, file of Aug 9, 2026.

Maryland ranks 34 of 50 per resident

  1. Nevada0.5
  2. Utah0.5
  3. Wisconsin0.5
  4. Maryland0.5
  5. West Virginia0.5
  6. California0.5
  7. 50 states and D.C.0.7

Source: CMS NPPES, primary taxonomy 208C00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

81.3% of these records appear in a Medicare file, against 84.7% 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. Maryland81.3%
  2. United States84.7%

Colon & Rectal Surgery Physician records in Maryland, measured

  • In a Medicare file26 of 32 · 81.3% here, 84.7% nationally
  • In the CMS Doctors and Clinicians file23 · 71.9% here, 76.0% nationally
  • Not updated in five years or more16 · 50.0% here, 50.9% nationally
  • Median graduation year2004 · the 23 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 208C00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

32 NPPES records list colon & rectal surgery physician (208C00000X) as their primary taxonomy with a practice address in Maryland: 0.5 per 100,000 residents against 0.7 nationally (50 states and D.C.). Baltimore has 11 of them (34%).

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. North Carolina32
  2. Kentucky31
  3. Oregon31
  4. Wisconsin31

States with a similar rate per 100,000

  1. Utah0.5
  2. California0.5
  3. Nevada0.5
  4. Tennessee0.5

The largest states

  1. Texas209
  2. New York199
  3. California198
  4. Florida178
  5. Ohio123

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.