NPPES file of Aug 9, 2026

Pediatric Hematology & Oncology Physician in Massachusetts

197 NPPES records list pediatric hematology & oncology physician with a practice address in Massachusetts, 2.8 per 100,000 residents, the 2nd highest rate of 50. Boston and Worcester have the most; each record links to the provider's NPI and the Massachusetts license search. Page 3 of 4.

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).

Boston has the most, 178

  1. Boston178
  2. Worcester8
  3. Cambridge3
  4. Springfield3
  5. Westwood2

Pediatric Hematology & Oncology Physician records in Massachusetts

  1. Robbie Majzner, MDBoston, MA 022151861636060
  2. Peter Manley, MDBoston, MA 021151477508372
  3. Brenton Mar, MD, PHDBoston, MA 021151215183256
  4. Steven Margossian, MD PHDBoston, MA 021151922067529
  5. Jonathan Marron, MDBoston, MA 022151427216753
  6. Samantha MartinBoston, MA 021141336777309
  7. Rosemarie Mastropolo, MDBoston, MA 022151063949626
  8. Alan Michelson, M.D.Boston, MA 021151760464994
  9. James MorrowBoston, MA 022151952806598
  10. Lars Mueller, MDBoston, MA 021151033326269
  11. Elizabeth Mullen, MD, FAAPBoston, MA 022151376511477
  12. David Nathan, MDBoston, MA 021151487717179
  13. Caitlin Neri, MDBoston, MA 021181649324062
  14. Peter Newburger, M.D.Worcester, MA 016551205810330
  15. Allison O'NeillBoston, MA 021151043479165
  16. Stuart Orkin, MDBoston, MA 021151558409961
  17. Nmazuo Ozuah, MBBSBoston, MA 021151457641656
  18. Sung Yun Pai, MDBoston, MA 021151497723647
  19. Jonathan Paolino, MDBoston, MA 022151205217718
  20. Sudha Parasuraman, MDBoston, MA 021151922067883
  21. Susan Parsons, MDBoston, MA 021111508975699
  22. Maria Pelidis, MDBoston, MA 021111467561514
  23. David Steven Pellman, M.D.Boston, MA 021151568418754
  24. Susan Perrine, MDBoston, MA 021181427035302
  25. Olivia Perrone, M.D.Boston, MA 021151396278354
  26. Sarah Peters, MDBoston, MA 021141366901308
  27. Yana Pikman, MDBoston, MA 022151669659116
  28. Andrew Place, M.D., PHDBoston, MA 021151083898373
  29. Jessica Pollard, MDBoston, MA 022151467491555
  30. Gayle Pouliot, MD, PHDBoston, MA 022151538397963
  31. Phoebe Power, MBBSBoston, MA 022151962182071
  32. Susan Prockop, MDBoston, MA 021151053382531
  33. Helen Reed, M.D., M.P.H.Boston, MA 022151720433261
  34. Raffaele Renella, M.D., PH.D.Boston, MA 021151982936928
  35. Matthew Richardson, MDSpringfield, MA 011071326121518
  36. Cory Rillahan, MD, PHDBoston, MA 021151821557117
  37. Ilonna Rimm, M.D.Newton Center, MA 024591063574093
  38. Charles Roberts, MD PHDBoston, MA 021151649239849
  39. Adam Rene RosenbaumBoston, MA 022151912534710
  40. Abby RosenbergBoston, MA 022151194833020
  41. Tom Rosenberg, MDBoston, MA 022151578192647
  42. Cathy Rosenfield, MDBoston, MA 021111700997426
  43. Jared Rowe, MD PHDBoston, MA 021151063839249
  44. Robert Rowe, M.D.Boston, MA 022151245539824
  45. Melisa Ruiz-Gutierrez, M.D, PH.D.Boston, MA 021151730321779
  46. Jessica Sachs, M.D.Boston, MA 021141396866455
  47. Stephen Sallan, MDBoston, MA 022151467421800
  48. Ralph Salloum, M.D.Boston, MA 022151962602607
  49. Vijay Sankaran, M.D., PH.D.Boston, MA 022151386969855
  50. Kapil Saxena, MDBoston, MA 021151902874241

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

Massachusetts ranks 2 of 50 per resident

  1. District of Columbia9.1
  2. Massachusetts2.8
  3. Tennessee2.3
  4. Delaware2.1
  5. 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.

41.6% 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. Massachusetts41.6%
  2. United States50.9%

Pediatric Hematology & Oncology Physician records in Massachusetts, measured

  • In a Medicare file82 of 197 · 41.6% here, 50.9% nationally
  • In the CMS Doctors and Clinicians file55 · 27.9% here, 31.2% nationally
  • Not updated in five years or more129 · 65.5% here, 54.5% nationally
  • Median graduation year2007 · the 55 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

197 NPPES records list pediatric hematology & oncology physician (2080P0207X) as their primary taxonomy with a practice address in Massachusetts: 2.8 per 100,000 residents against 1.1 nationally (50 states and D.C.). Boston has 178 of them (90%).

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. Ohio191
  2. Pennsylvania218
  3. Tennessee166
  4. Florida163

States with a similar rate per 100,000

  1. Delaware2.1
  2. Missouri1.6
  3. Colorado1.5
  4. Maryland1.5

The largest states

  1. California417
  2. Texas319
  3. New York289
  4. Pennsylvania218
  5. Ohio191

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.