NPPES file of Aug 9, 2026

Psychiatry Physician in Massachusetts

2,736 NPPES records list psychiatry physician with a practice address in Massachusetts, 39 per 100,000 residents, the 2nd highest rate of 51. Boston and Cambridge have the most; each record links to the provider's NPI and the Massachusetts license search. Page 36 of 55.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2084P0800X · 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, 845

  1. Boston845
  2. Cambridge213
  3. Belmont151
  4. Worcester133
  5. Brookline117

Psychiatry Physician records in Massachusetts

  1. Richard Netsky, M.D.Hingham, MA 020431487617775
  2. Carlos Neu, M.D.Boston, MA 021301861561102
  3. Eli Neustadter, MDBoston, MA 022151689202202
  4. Jennifer Neuwalder, M.D.Cambridge, MA 021391538320056
  5. Michael Nevarez, M.D.Boston, MA 021141659692804
  6. Peter Newberry, MDBoston, MA 021141659361897
  7. Amy Newhouse, M.D.Boston, MA 021141396039459
  8. Aisik Newman, MDAmherst, MA 010021679644751
  9. Alair Newman, DOWorcester, MA 016551144725086
  10. Jordyn Newmark, MDBoston, MA 021181558940015
  11. Stephanie Ngo, MDBrighton, MA 021351902538309
  12. Tuong NguyenDorchester, MA 021221700820206
  13. Lani Nicholson, M.D.Quincy, MA 021691275542920
  14. Donnah Nickerson-Reti, M.D.Lexington, MA 024201033185640
  15. Steven Nickman, MDChestnut Hill, MA 024671104881432
  16. Cristiana Nicoli De Mattos, MD, PHDBrockton, MA 023011649857541
  17. Andrew Nierenberg, MDBoston, MA 021141336113661
  18. Kabir Nigam, MD, MRESBelmont, MA 024781134705627
  19. Marianna Nikolaychuk, MDBrighton, MA 021351275265639
  20. Elena Nikolskaia, M.D.Brockton, MA 024011114057650
  21. Halsey Niles, MDBelmont, MA 024781225615057
  22. Allan Nineberg, MDCambridge, MA 021381215980271
  23. Mladen Nisavic, MDBoston, MA 021141952697880
  24. Saifullah Nizamani, M.D.Worcester, MA 016551972523389
  25. Margaret NjorogeAvon, MA 023221568205789
  26. Ngozi Nkanginieme, M.D.Boston, MA 021141760823751
  27. Cory Nohl, M.D.Gardner, MA 014401184880569
  28. Diego NolascoBoston, MA 021181821670837
  29. Ruta Nonacs, MD PHDBoston, MA 021141912085101
  30. Angelina Noriega, MDBoston, MA 021111346865326
  31. Patricia Normand, M.D.West Newton, MA 024651235298266
  32. Paul Noroian, M.D.Worcester, MA 016041437161296
  33. Donna NorrisWellesley, MA 024811861517799
  34. Ronald Norris, MDNorth Andover, MA 018451679796882
  35. Chhewang Norsang, M.D.Holyoke, MA 010401104931161
  36. Hicham Nouaime, M.D.Hyannis, MA 026011891809794
  37. Olga Novik, M.D., M.P.H.Worcester, MA 016081487794160
  38. Olga Novikov, MDBoston, MA 021181417452756
  39. Syeda Nuzhat, M.D.Westborough, MA 015811033307988
  40. Chike Nwankwo, M.D.Brookline, MA 024451205843042
  41. Paul Nye, MDFall River, MA 027201952693376
  42. Kate Nyquist, M.D.Boston, MA 021141811192420
  43. Killian O'Connell, M.D.Amherst, MA 010021265402515
  44. Rory O'Connell, MDBoston, MA 021111144024852
  45. Ryan O'ConnorBoston, MA 021151174899595
  46. Joseph O'Garr, M.D.Wellesley, MA 024811962556399
  47. Donal O'Hanlon, MDSpringfield, MA 011991548267107
  48. Dennis O'Neil, M.D.Bedford, MA 017301679531073
  49. Maeve O'Neill, MDBoston, MA 021141396194601
  50. Siobhan O'Neill, M.D.Cambridge, MA 021381073571915

Source: CMS NPPES, primary taxonomy 2084P0800X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 2 of 51 per resident

  1. District of Columbia70
  2. Massachusetts39
  3. Rhode Island35
  4. New York34
  5. 50 states and D.C.17

Source: CMS NPPES, primary taxonomy 2084P0800X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

65.4% of these records appear in a Medicare file, against 68.5% 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. Massachusetts65.4%
  2. United States68.5%

Psychiatry Physician records in Massachusetts, measured

  • In a Medicare file1,788 of 2,736 · 65.4% here, 68.5% nationally
  • In the CMS Doctors and Clinicians file1,220 · 44.6% here, 42.4% nationally
  • Not updated in five years or more1,685 · 61.6% here, 56.2% nationally
  • Median graduation year2005 · the 1,219 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2084P0800X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

2,736 NPPES records list psychiatry physician (2084P0800X) as their primary taxonomy with a practice address in Massachusetts: 39 per 100,000 residents against 17 nationally (50 states and D.C.). Boston has 845 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. Florida2,744
  2. Pennsylvania2,662
  3. Texas3,318
  4. Illinois2,147

States with a similar rate per 100,000

  1. Rhode Island34.9
  2. New York33.7
  3. Connecticut32.5
  4. Vermont31.4

The largest states

  1. California8,673
  2. New York6,589
  3. Texas3,318
  4. Florida2,744
  5. Pennsylvania2,662

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.