NPPES file of Aug 9, 2026

Medical Oncology Physician in Maryland

224 NPPES records list medical oncology physician with a practice address in Maryland, 3.6 per 100,000 residents, the 3rd highest rate of 51. Baltimore and Bethesda have the most; each record links to the provider's NPI and the Maryland license search. Page 4 of 5.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RX0202X · 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, 130

  1. Baltimore130
  2. Bethesda35
  3. Silver Spring10
  4. Lutherville7
  5. Frederick5

Medical Oncology Physician records in Maryland

  1. Geraldine O'Sullivan Coyne, M.D, PHDBethesda, MD 208921205182318
  2. Aliyah Pabani, MDBaltimore, MD 212871124511092
  3. Lee Pai-Scherf, M.D.Silver Spring, MD 209031265847727
  4. Bernard Parker, MDBurtonsville, MD 208661073136693
  5. Howard Parnes, MDBethesda, MD 208921629234976
  6. Suman Paul, M.B.B.S, PHDBaltimore, MD 212871003253360
  7. Richard Piekarz, MDBethesda, MD 208921902949407
  8. Kenneth Pienta, MDBaltimore, MD 212871649356510
  9. Alida Podrumar, M.D.Cumberland, MD 215021427059609
  10. Jonathan Powell, M.D.Baltimore, MD 212871629011432
  11. Victor Priego, M.D.Bethesda, MD 208171003875295
  12. Aron Primack, MDSilver Spring, MD 209101023316825
  13. Tanya Prowell, M.D.Baltimore, MD 212051932256930
  14. Ramya Ramaswami, MD MPHBethesda, MD 208921992215073
  15. Zeshaan Rasheed, M.D., PHD.Baltimore, MD 212311528127016
  16. Diane Reyes-DagherBaltimore, MD 212871619372554
  17. David Riseberg, MDBaltimore, MD 212021124133210
  18. Edwin Rock, MD PHDBethesda, MD 208171851718928
  19. Martin Rosman, M.D.Annapolis, MD 214011932355401
  20. Samuel Rosner, M.D.Baltimore, MD 212011114450871
  21. Cesar Santa-Maria, MDBaltimore, MD 212871134381692
  22. Edward Sausville, M.D.Baltimore, MD 212011528020393
  23. Susan Scott, MDBaltimore, MD 212871164816138
  24. Tanguy Seiwert, M.D.Baltimore, MD 212361043340292
  25. Laura Sena, MDBaltimore, MD 212871467841130
  26. Adrian Senderowicz, MDBethesda, MD 208141396935649
  27. Mirat Shah, MDBaltimore, MD 212871457619355
  28. William Sharfman, M.D.Lutherville, MD 210931760413652
  29. Daya Sharma, MDSilver Spring, MD 209011871527937
  30. Eugene Shenderov, M.D., PHDBaltimore, MD 212871720358633
  31. Margaret Showel, M.D.Baltimore, MD 212641871605352
  32. Daniel ShuBaltimore, MD 212871790216414
  33. Muhammad Siddique, MDCentreville, MD 216171740426774
  34. David Sidransky, M.D.Baltimore, MD 212051629147863
  35. Donald Small, M.D.Baltimore, MD 212871982640975
  36. Bruce Smith, M.D.Baltimore, MD 212871174558126
  37. Frederick Smith, M.D.Chevy Chase, MD 208151730185935
  38. Thomas Smith, M.D.Baltimore, MD 212871457441008
  39. Daniel Suzman, MDBaltimore, MD 212871033445945
  40. Ikumi Suzuki, M.D.Baltimore, MD 212011457679458
  41. Lode Swinnen, M.D.Baltimore, MD 212871417988148
  42. Eva Szabo, MDBethesda, MD 208891821150681
  43. Jason Taksey, M.D.Annapolis, MD 214011316017676
  44. Mei Tang, MDBaltimore, MD 212041457495483
  45. Kevin Tay, MDRockville, MD 208521699952846
  46. Alain Thibault, M.D.Bethesda, MD 208171225394091
  47. Katherine Tkaczuk, M.D.Baltimore, MD 212011225079601
  48. Ram Trehan, MDSilver Spring, MD 209011952310070
  49. Nicholas Tschernia, MDBethesda, MD 208921124415054
  50. Margaret Tucker, M.D.Bethesda, MD 208921013974591

Source: CMS NPPES, primary taxonomy 207RX0202X: records by practice city and the list of records, file of Aug 9, 2026.

Maryland ranks 3 of 51 per resident

  1. Massachusetts6.0
  2. District of Columbia4.3
  3. Maryland3.6
  4. New York2.8
  5. Minnesota2.8
  6. 50 states and D.C.1.7

Source: CMS NPPES, primary taxonomy 207RX0202X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

67.4% of these records appear in a Medicare file, against 81.8% 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. Maryland67.4%
  2. United States81.8%

Medical Oncology Physician records in Maryland, measured

  • In a Medicare file151 of 224 · 67.4% here, 81.8% nationally
  • In the CMS Doctors and Clinicians file128 · 57.1% here, 72.5% nationally
  • Not updated in five years or more155 · 69.2% here, 49.3% nationally
  • Median graduation year2000 · the 128 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RX0202X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

224 NPPES records list medical oncology physician (207RX0202X) as their primary taxonomy with a practice address in Maryland: 3.6 per 100,000 residents against 1.7 nationally (50 states and D.C.). Baltimore has 130 of them (58%).

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 Carolina191
  2. Pennsylvania265
  3. Washington183
  4. Illinois182

States with a similar rate per 100,000

  1. District of Columbia4.3
  2. New York2.8
  3. Minnesota2.8
  4. Connecticut2.7

The largest states

  1. Florida561
  2. New York548
  3. Texas547
  4. California447
  5. Massachusetts421

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.