NPPES file of Aug 9, 2026

Infectious Disease Physician in Massachusetts

487 NPPES records list infectious disease physician with a practice address in Massachusetts, 7 per 100,000 residents, the 2nd highest rate of 51. Boston and Worcester have the most; each record links to the provider's NPI and the Massachusetts license search. Page 8 of 10.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RI0200X · 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, 284

  1. Boston284
  2. Worcester56
  3. Springfield20
  4. Cambridge11
  5. Burlington10

Infectious Disease Physician records in Massachusetts

  1. Sanjay Ram, M.D.Worcester, MA 016551699753194
  2. Emily Ramasra, M.D.Springfield, MA 011071013391887
  3. Alison Rapoport, M.D.Cambridge, MA 021391619296027
  4. Alwyn Rapose, MBBSWorcester, MA 016081184828766
  5. Holly Rawizza, MDBoston, MA 021141942336367
  6. Jennifer Reedy, MD, PHDBoston, MA 021141295963353
  7. Katherine Reifler, MDBoston, MA 021181558865931
  8. Sara Rendell, MD, PHDBoston, MA 021151154065241
  9. Chanu Rhee, M.D.Boston, MA 021151568642528
  10. Donald Rice, MDFall River, MA 027201104189653
  11. Peter Rice, M.D.Worcester, MA 016051194707505
  12. Eugene Richardson, MDBoston, MA 021151003122722
  13. Renee Ridzon, MDBoston, MA 021181992182208
  14. Gregory Robbins, M.D., M.P.H.Boston, MA 021141811977911
  15. Cesar Rodriguez, MDBoston, MA 021141255950358
  16. William Rodriguez, MDBoston, MA 021151851356869
  17. Eric Rosenberg, MDBoston, MA 021141801877691
  18. John Ross, MDBoston, MA 021151144200866
  19. Robert Roth, M.D.Auburndale, MA 024661821289489
  20. Alan Rothman, M.D.Worcester, MA 016551235113523
  21. Christopher Rowley, M.D.Boston, MA 022151700823887
  22. Eric Rubin, MD PHDBoston, MA 021151992760847
  23. Edward Ryan, MDBoston, MA 021141255321022
  24. Mary Sabolsi, MD, MPHWaltham, MA 024511386679439
  25. Venugopal Saddi, MDMethuen, MA 018441194754309
  26. Manish Sagar, MDBoston, MA 021181811954050
  27. Urmee Saha, M.D.Springfield, MA 011071730611963
  28. Shrein Saini, M.D.Boston, MA 021111235580259
  29. Douglas Salvador, MDHolyoke, MA 010401568434512
  30. Frank Sanchez, MDWorcester, MA 016551134648025
  31. Kenneth Sands, M.D.Boston, MA 022151528006749
  32. Dost Sarpel, MDMilford, MA 017571861653198
  33. Paul Sax, MDBoston, MA 021151306809892
  34. Jennifer Schimmel, MDSpringfield, MA 011991245448695
  35. Hans Schlecht, M.D.Springfield, MA 011071518021617
  36. Samuel Schnittman, MDBoston, MA 021141194229583
  37. Gail Scully, M.D.Worcester, MA 016051083674006
  38. Peter Sebeny, M.D.Newburyport, MA 019501194704932
  39. Florencia Segal, MDBoston, MA 021141093706533
  40. Pritha Sen, MDBoston, MA 021141215196852
  41. Richard Serrao, M.D.Jamaica Plain, MA 021301386687507
  42. Roger Shapiro, M.D.Boston, MA 022151578502571
  43. Vibha Sharma, M.D.Marlborough, MA 017521689659229
  44. Peter Sheckman, MDLynn, MA 019041013963883
  45. Erica Shenoy, MD, PHDBoston, MA 021141447455043
  46. Linda Shipton, M.D.Cambridge, MA 021391720026032
  47. David Sidebottom, M.D.Lowell, MA 018541174580898
  48. Mark Siedner, MDBoston, MA 021141548429178
  49. Davinderpal SinghBrockton, MA 023011265712236
  50. Roshni Singh, MDBoston, MA 021181487280368

Source: CMS NPPES, primary taxonomy 207RI0200X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 2 of 51 per resident

  1. District of Columbia16.2
  2. Massachusetts7.0
  3. Maryland6.6
  4. Rhode Island6.0
  5. 50 states and D.C.3.2

Source: CMS NPPES, primary taxonomy 207RI0200X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

68.8% of these records appear in a Medicare file, against 79.0% 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. Massachusetts68.8%
  2. United States79.0%

Infectious Disease Physician records in Massachusetts, measured

  • In a Medicare file335 of 487 · 68.8% here, 79.0% nationally
  • In the CMS Doctors and Clinicians file296 · 60.8% here, 68.4% nationally
  • Not updated in five years or more317 · 65.1% here, 56.5% nationally
  • Median graduation year2003 · the 296 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RI0200X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

487 NPPES records list infectious disease physician (207RI0200X) as their primary taxonomy with a practice address in Massachusetts: 7 per 100,000 residents against 3.2 nationally (50 states and D.C.). Boston has 284 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. Illinois464
  2. Pennsylvania545
  3. Maryland410
  4. New Jersey375

States with a similar rate per 100,000

  1. Rhode Island6.0
  2. Connecticut5.6
  3. New York5.0
  4. Minnesota3.8

The largest states

  1. California1,119
  2. New York970
  3. Florida760
  4. Texas674
  5. Pennsylvania545

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.