NPPES file of Aug 9, 2026

Hematology & Oncology Physician in Maryland

317 NPPES records list hematology & oncology physician with a practice address in Maryland, 5.1 per 100,000 residents, the 11th highest rate of 51. Baltimore and Bethesda have the most; each record links to the provider's NPI and the Maryland license search. Page 7 of 7.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RH0003X · 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, 98

  1. Baltimore98
  2. Bethesda68
  3. Rockville18
  4. Frederick13
  5. Salisbury13

Hematology & Oncology Physician records in Maryland

  1. Matthew Wright, M.D.Bethesda, MD 208891619131653
  2. Tanya Wroblewski, MDBethesda, MD 208891851348080
  3. Yin Wu, MDBaltimore, MD 212151053516401
  4. Changqing Xie, M.D.Frederick, MD 217021386082238
  5. James Xu, M.D.Rockville, MD 208521104003342
  6. Saul YanovichBaltimore, MD 212011386643450
  7. Jean Yared, M.D.Baltimore, MD 212011881871879
  8. Lavanya Yarlagadda, M.D.Baltimore, MD 212291386785327
  9. Neeha Zaidi, MDBaltimore, MD 212871295091841
  10. Qamar Zaman, MDCumberland, MD 215021093893331
  11. Dan Zandberg, MDBaltimore, MD 212011912184763
  12. Karen Zeman, MDBethesda, MD 208891518195965
  13. Rachel Zemel, MDBethesda, MD 208921689256778
  14. Yuanjue Zhang, MDColumbia, MD 210441124236286
  15. Farah Zia, MDRockville, MD 208521407011729
  16. Ann Zimrin, M.D.Baltimore, MD 212011215991179
  17. James Zwiebel, M.D.Bethesda, MD 208921366868622

Source: CMS NPPES, primary taxonomy 207RH0003X: records by practice city and the list of records, file of Aug 9, 2026.

Maryland ranks 11 of 51 per resident

  1. Connecticut5.5
  2. New Hampshire5.4
  3. Illinois5.3
  4. Maryland5.1
  5. Wisconsin5.0
  6. North Dakota5.0
  7. 50 states and D.C.4.2

Source: CMS NPPES, primary taxonomy 207RH0003X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

74.8% of these records appear in a Medicare file, against 82.9% 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. Maryland74.8%
  2. United States82.9%

Hematology & Oncology Physician records in Maryland, measured

  • In a Medicare file237 of 317 · 74.8% here, 82.9% nationally
  • In the CMS Doctors and Clinicians file185 · 58.4% here, 71.3% nationally
  • Not updated in five years or more180 · 56.8% here, 54.3% nationally
  • Median graduation year2000 · the 185 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RH0003X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

317 NPPES records list hematology & oncology physician (207RH0003X) as their primary taxonomy with a practice address in Maryland: 5.1 per 100,000 residents against 4.2 nationally (50 states and D.C.). Baltimore has 98 of them (31%).

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. Wisconsin295
  2. Michigan340
  3. Virginia346
  4. Arizona285

States with a similar rate per 100,000

  1. North Dakota5.0
  2. Illinois5.3
  3. New Hampshire5.4
  4. Connecticut5.5

The largest states

  1. California1,583
  2. New York1,163
  3. Texas922
  4. Florida818
  5. Pennsylvania784

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.