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 3 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. Ronald Gress, M.D.Bethesda, MD 208921598179962
  2. Tim Greten, M.D.Bethesda, MD 208921518231000
  3. Christine Gruessner, M.D., M.P.H.Bethesda, MD 208921649654476
  4. James Gulley, MD PHD FACPBethesda, MD 208921720038771
  5. Rita Gupta, M.D.Clinton, MD 207351003857269
  6. Roopa Gupta, M.D.Easton, MD 216011194944496
  7. Joseph Haggerty, M.D.Rockville, MD 208501013098870
  8. Noah Hahn, M.D.Baltimore, MD 212871376582197
  9. David Haidak, M.D.Clinton, MD 207351215933221
  10. Sajjad Haider, MDWestminster, MD 211571912002403
  11. Hind Hamdan, M.D.Hagerstown, MD 217401316989098
  12. Zachariah Hamidi, MDBethesda, MD 208141225623929
  13. J. Hamilton, M.D.Bethesda, MD 208891649386129
  14. Christine Hann, M.D., PH.D.Baltimore, MD 212871336295021
  15. Curtis Harris, M.D.Salisbury, MD 218041033134234
  16. Jon Heald, DOBethesda, MD 208891639735822
  17. Amr Hegazi, MDFrederick, MD 217021366443152
  18. Charles Hesdorffer, MDBethesda, MD 208921356302095
  19. Danubia HesterBrandywine, MD 206131326426057
  20. Dennis Hickstein, M.D.Bethesda, MD 208921568752954
  21. Elizabeth Hill, M.D.Bethesda, MD 208921669715066
  22. Jack Hong, M.D.Baltimore, MD 212011033186085
  23. Margit Horiba, MD, MPHBaltimore, MD 212011821130550
  24. Madison Hostetter, DOBethesda, MD 208891710626247
  25. Matthew Hsieh, MDBethesda, MD 208921992915458
  26. Hui HuangBethesda, MD 208921326224858
  27. Michael Hubbard, DOBaltimore, MD 212011588283048
  28. Richard Huslig, M.D.Lutherville, MD 210931346215746
  29. Mahrukh Hussain, MDGaithersburg, MD 208791841358801
  30. Leon Hwang, M.D.Rockville, MD 208501972659266
  31. Kazusa Ishii, M.D.Bethesda, MD 208921578884367
  32. Tania Jain, M.DBaltimore, MD 212871831486307
  33. Yixing Jiang, MDBaltimore, MD 212011720037971
  34. Vishal Jindal, MDBaltimore, MD 212151962854463
  35. Ryan Jones, M.D.Bethesda, MD 208891720426760
  36. Moonjung Jung, M.D.Baltimore, MD 212241700017258
  37. Hannah KaizerBaltimore, MD 212151891283776
  38. Nelson Kalil, M.D.Rockville, MD 208521427074707
  39. Abhishek Kalla, M.D.Baltimore, MD 212291508085887
  40. Arjun Kalra, MDBethesda, MD 208141538624861
  41. Kavita Kalra, M.D.Baltimore, MD 212111063495232
  42. Maitri Kalra, MBBSBaltimore, MD 212151457615270
  43. Matthew Karpenko, DOSalisbury, MD 218011912118647
  44. Karl Kasamon, M.D.Baltimore, MD 212251063489235
  45. Yvette Kasamon, M.D.Baltimore, MD 212871578510756
  46. Frederic Kass, M.D,F.A.C.PHagerstown, MD 217421417977406
  47. Daniel KejzmanBaltimore, MD 212311831331644
  48. Mian KhalidBaltimore, MD 212441740457266
  49. Mahinur Khan, M.D.Hagerstown, MD 217421356557169
  50. Mohammad Khan, MDHagerstown, MD 217421568431849

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.