NPPES file of Aug 9, 2026

Internal Medicine Physician in Massachusetts

6,825 NPPES records list internal medicine physician with a practice address in Massachusetts, 97 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 103 of 137.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207R00000X · 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, 2,320

  1. Boston2,320
  2. Worcester448
  3. Cambridge300
  4. Springfield282
  5. Burlington144

Internal Medicine Physician records in Massachusetts

  1. Eileen Reynolds, MDBoston, MA 022151710935507
  2. Lance Reynolds, MDWestfield, MA 010851215989876
  3. Radford Reynolds, MDWareham, MA 025711477655231
  4. Sara-Grace Reynolds, M.D.Worcester, MA 016551619355088
  5. Seyed Rezapour, M.D.Burlington, MA 018051710240155
  6. Julia Reznik, M.D.Sudbury, MA 017761992072334
  7. Joseph Rhatigan, M.D.Boston, MA 021151699734616
  8. Elizabeth Rhee, MDBoston, MA 021141306837505
  9. Martin Rhee, M.D.Brockton, MA 023021154337186
  10. Maryellen Rhinehart, MDCambridge, MA 021391134193857
  11. Dahlia Riad, MDAbington, MA 023511396736708
  12. May Riad, MDWatertown, MA 024721710355706
  13. Eduardo Ribeiro, MDFramingham, MA 017021649256751
  14. Ricardo Ribeiro, M.D.East Boston, MA 021281386993194
  15. A. Ricard, MDBerlin, MA 015031235111303
  16. Catherine Rich, M.D.Boston, MA 021181184654436
  17. Diane Rich, MDBoston, MA 021131013991942
  18. Katherine RichBoston, MA 021141831891589
  19. Michael Rich, M.D.Natick, MA 017601972738755
  20. Jeanne Richard, MDWellesley, MA 024811306940838
  21. Brenda Richardson, M.D.Gloucester, MA 019301982767075
  22. Carol Richardson, M.D.Springfield, MA 011071083654511
  23. Elizabeth RicheyBoston, MA 021151366855710
  24. Sandra Richman, M.D.Brookline, MA 024461023152717
  25. James Richter, MDBoston, MA 021141275516643
  26. Ann Rickert, M.D.Bellingham, MA 020191790716512
  27. Daniel Ricotta, MDBoston, MA 022151245526839
  28. Ali RidhaBurlington, MA 018051336589167
  29. Vicki Rieder, M.D.East Boston, MA 021281992783278
  30. Leonardo Riella, M.D., PHDBoston, MA 021141013067057
  31. Albert Rielly, MDCambridge, MA 021391689848251
  32. Gerald Riffelmacher, M.D.Medford, MA 021551457351900
  33. Leslie Rigali, DOPeabody, MA 019601609860857
  34. Nancy Rigotti, MDBoston, MA 021141689664328
  35. Erika Riley, MD MPHBoston, MA 021141710960703
  36. David Rind, M.D.Boston, MA 022151043312465
  37. Bruce Ring, MDBrockton, MA 023011427043678
  38. Jalpan Ringwala, MDBoston, MA 021181457761553
  39. Charles Rippberger, M.D.Quincy, MA 021691821047713
  40. Judith Rissman, MDLexington, MA 024201730320540
  41. Violeta Ristic, M.D.Burlington, MA 018031386873644
  42. Matthew Rittel, M.D.Cotuit, MA 026351902864788
  43. Eve Rittenberg, MDChestnut Hill, MA 024671386601458
  44. Jose Rivadeneira Argudo, MDGreenfield, MA 013011952821647
  45. Hilda Rivera-RiveraSpringfield, MA 011071225247521
  46. Ana Rivero Gutierrez, M.DOak Bluffs, MA 025571780939587
  47. Rubab Rizwan, M.D.Williamstown, MA 012671780370916
  48. Andrea Rizzo, MDSudbury, MA 017761558351676
  49. David Roach, M.D.Boston, MA 021151699139535
  50. Marguerite Roach, M.D.Concord, MA 017421124087853

Source: CMS NPPES, primary taxonomy 207R00000X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 2 of 51 per resident

  1. District of Columbia133
  2. Massachusetts97
  3. Rhode Island94
  4. Connecticut73
  5. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 207R00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

74.5% of these records appear in a Medicare file, against 78.7% 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. Massachusetts74.5%
  2. United States78.7%

Internal Medicine Physician records in Massachusetts, measured

  • In a Medicare file5,088 of 6,825 · 74.5% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file4,103 · 60.1% here, 61.4% nationally
  • Not updated in five years or more4,346 · 63.7% here, 55.4% nationally
  • Median graduation year2004 · the 4,103 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207R00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

6,825 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in Massachusetts: 97 per 100,000 residents against 44 nationally (50 states and D.C.). Boston has 2,320 of them (34%).

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. Illinois7,238
  2. Pennsylvania7,300
  3. Michigan5,735
  4. Ohio5,277

States with a similar rate per 100,000

  1. Rhode Island94.3
  2. Connecticut72.5
  3. Maryland63.2
  4. Hawaii62.9

The largest states

  1. California17,696
  2. New York12,067
  3. Florida10,151
  4. Texas9,175
  5. Pennsylvania7,300

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.