NPPES file of Aug 9, 2026

Pediatric Hematology & Oncology Physician in Maryland

93 NPPES records list pediatric hematology & oncology physician with a practice address in Maryland, 1.5 per 100,000 residents, the 9th highest rate of 50. Baltimore and Bethesda have the most; each record links to the provider's NPI and the Maryland license search. Page 2 of 2.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2080P0207X · 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, 54

  1. Baltimore54
  2. Bethesda26
  3. Rockville4
  4. Silver Spring3
  5. Beltsville1

Pediatric Hematology & Oncology Physician records in Maryland

  1. John Ligon, M.D.Baltimore, MD 212871306188206
  2. Nicolas Llosa, M.D.Baltimore, MD 212871609097013
  3. Regina Macatangay, MDBaltimore, MD 212011679602114
  4. Leigh Marcus, M.D.Baltimore, MD 212871295933992
  5. Micah Maxwell, MD, PHDBaltimore, MD 212871417249293
  6. Lisa McReynolds, MD, PHDRockville, MD 208501598999344
  7. Paul Meltzer, MDBethesda, MD 208921023709664
  8. Matthew Merguerian, M.D., PH.D.Baltimore, MD 212871386055804
  9. Francis Mussai, BM BCHBaltimore, MD 212871023218377
  10. Patience Odeniyide, MDBaltimore, MD 212871659781458
  11. Stephanie Omokaro, M.D.Baltimore, MD 212871720125727
  12. Ido Paz Priel, M.D.Baltimore, MD 212871437211851
  13. Lydia Pecker, MDBaltimore, MD 212051891074233
  14. Christine Pratilas, MDBaltimore, MD 212871336204445
  15. Carleigh Quillen, DOBethesda, MD 208891316691595
  16. Eric Raabe, M.D.Baltimore, MD 212871316144298
  17. Cara Rabik, M.D., PH.D.Baltimore, MD 212871962723189
  18. Emily Rao, MDBaltimore, MD 212051679919948
  19. Vemulkonda Rao, MDBethesda, MD 208921710274188
  20. Nicholas Richardson, D.O.Silver Spring, MD 209931205078581
  21. Sharon Savage, MDBethesda, MD 208921215455548
  22. Kristen Schratz, M.D.Baltimore, MD 212871376819284
  23. John Shern, MDBethesda, MD 208921811159916
  24. Edward Allan Sison, MDBaltimore, MD 212871326222159
  25. Malcolm Smith, M.D., PH.D.Bethesda, MD 208921932579927
  26. Linda Smith-ResarBaltimore, MD 212871871525105
  27. Allen Stering, M.D.Bethesda, MD 208891497713358
  28. Jeff Summers, M.D.Silver Spring, MD 209011164854899
  29. Russell Sundby, MDBethesda, MD 208921275952020
  30. Heather Symons, M.D.Baltimore, MD 212871629012679
  31. Yoram Unguru, M.D., M.S., M.A.Baltimore, MD 212151508943408
  32. Wilson Vasconez Samaniego, MDBaltimore, MD 212871164926002
  33. Lauren Vasta, M.D.Bethesda, MD 208891790079804
  34. Anne Warwick, MDBethesda, MD 208891285686881
  35. Sarah WattBaltimore, MD 212871821524760
  36. Susan Whiteway, M.D.Bethesda, MD 208891265639801
  37. Brigitte Widemann, M.D.Bethesda, MD 208171407130362
  38. Jon Wigginton, MDFrederick, MD 217031275006512
  39. Joseph Wiley, M.D.Baltimore, MD 212151063455368
  40. Teresa York, MDBaltimore, MD 212011043246853
  41. David Young, M.D.Bethesda, MD 208921578856670
  42. Abdulhafiz Zakieh, M.D.Baltimore, MD 212871851730097
  43. Richard Zanetti, MDBethesda, MD 208891003101551

Source: CMS NPPES, primary taxonomy 2080P0207X: records by practice city and the list of records, file of Aug 9, 2026.

Maryland ranks 9 of 50 per resident

  1. Ohio1.6
  2. Missouri1.6
  3. Colorado1.5
  4. Maryland1.5
  5. New York1.5
  6. Rhode Island1.5
  7. 50 states and D.C.1.1

Source: CMS NPPES, primary taxonomy 2080P0207X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

40.9% of these records appear in a Medicare file, against 50.9% 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. Maryland40.9%
  2. United States50.9%

Pediatric Hematology & Oncology Physician records in Maryland, measured

  • In a Medicare file38 of 93 · 40.9% here, 50.9% nationally
  • In the CMS Doctors and Clinicians file29 · 31.2% here, 31.2% nationally
  • Not updated in five years or more56 · 60.2% here, 54.5% nationally
  • Median graduation year2008 · the 29 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2080P0207X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

93 NPPES records list pediatric hematology & oncology physician (2080P0207X) as their primary taxonomy with a practice address in Maryland: 1.5 per 100,000 residents against 1.1 nationally (50 states and D.C.). Baltimore has 54 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. Colorado89
  2. Missouri99
  3. North Carolina86
  4. Georgia101

States with a similar rate per 100,000

  1. New York1.5
  2. Rhode Island1.5
  3. Ohio1.6
  4. Minnesota1.3

The largest states

  1. California417
  2. Texas319
  3. New York289
  4. Pennsylvania218
  5. Massachusetts197

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.