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 5 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. Carol Tweed, MDAnnapolis, MD 214011649219155
  2. Paz Vellanki, M.D., PH.D.Silver Spring, MD 209931447699681
  3. Kala Visvanathan, M.B.B.S.Baltimore, MD 212871003851577
  4. Samantha Vogt, M.D., MPHBaltimore, MD 212871164741997
  5. Nina Wagner-Johnston, MDBaltimore, MD 212871255488201
  6. Rachael WalkerBaltimore, MD 212871487241584
  7. Dongmei Wang, M.D.Rockville, MD 208501447422431
  8. Yuxuan WangBaltimore, MD 212871316486301
  9. Govind Warrier, MD, MPHBaltimore, MD 212871215466404
  10. Najeff WaseemBaltimore, MD 212871598119711
  11. Stanley Watkins, Jr, M.D.Annapolis, MD 214011760424352
  12. Jonathan Webster, M.D.Baltimore, MD 212871366731549
  13. David Weng, MDChevy Chase, MD 208151831154731
  14. Jaqueline Whang-PengRockville, MD 208521811474851
  15. Robert White, M.D.Silver Spring, MD 209021063947133
  16. Mary Wilkinson, M.D.Baltimore, MD 212871538184056
  17. Wyndham Wilson, MD, PHDBethesda, MD 208921679863989
  18. Antonio Wolff, M.D.Lutherville, MD 210931861420291
  19. Robert Young, M.D.Bethesda, MD 208141891052197
  20. Daniel ZabranskyBaltimore, MD 212871962861302
  21. Elias Zambidis, M.D., PH.D.Baltimore, MD 212871124054549
  22. Lindy Zhang, MDBaltimore, MD 212871124481429
  23. Jacquelyn Zimmerman, MD, PHDBaltimore, MD 212871871912618
  24. Jo Zujewski, M.D.Bethesda, MD 208921033250089

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.