NPPES file of Aug 9, 2026

Clinical Psychologist in Massachusetts

3,185 NPPES records list clinical psychologist with a practice address in Massachusetts, 45 per 100,000 residents, the 4th highest rate of 51. Boston and Cambridge have the most; each record links to the provider's NPI and the Massachusetts license search. Page 43 of 64.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 103TC0700X · 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, 509

  1. Boston509
  2. Cambridge267
  3. Belmont165
  4. Worcester160
  5. Brookline158

Clinical Psychologist records in Massachusetts

  1. Kim Nghiem, PSY.DDorchester, MA 021221912967985
  2. Hang Ngo, PSY.D.Somerville, MA 021441932363355
  3. David Nguyen, PH.D.Brookline, MA 024461891341293
  4. John Nichols, PSY.D.Belmont, MA 024781952473647
  5. Emily Nicholson, PSY.D.Canton, MA 020211205041597
  6. Sarah Nicoletta, PSYDBoston, MA 021351770777690
  7. Johanna Nielsen, PHDConcord, MA 017421861231847
  8. Martha Niemiec, MABurlington, MA 018031477059350
  9. Yvonne NievesJamaica Plain, MA 021301902082357
  10. Barry Nigrosh, PH.D.South Hadley, MA 010751356453070
  11. Barbara Niles, PHDBoston, MA 021301023028123
  12. Judith Nissenbaum, PH.DChicopee, MA 010201023025657
  13. Mika Nitta, PSY.D.Worcester, MA 016101629123062
  14. Gil Noam, ED.D.Belmont, MA 024781972670057
  15. Nicole NoceraWellesley, MA 024811952850067
  16. Matthew Nock, PHDCambridge, MA 021381417442849
  17. Howard Noe, PHDNewton Centre, MA 024591578550901
  18. Shari Noe, PSYDWaban, MA 024681194984955
  19. Monique Noelle, PHDCambridge, MA 021391770548125
  20. Rebecca Noll, PH.D.Leeds, MA 010531922029180
  21. David Noonan, M.EDMarshfield, MA 020501134256571
  22. Samuel Nordberg, PH.D.Worcester, MA 016061679929004
  23. Rebecca Norris-Bell, PH.D.Cambridge, MA 021381346664406
  24. Lisa Northman, PH.D.Needham, MA 024921205993094
  25. Hilary Norton, PSY.D.Cambridge, MA 021381134169303
  26. Jacob Nota, PHDNatick, MA 017601447770839
  27. Stacey Novack, PSY.D.Northampton, MA 010601356404701
  28. David Nowell, PH.D.Worcester, MA 016021790821411
  29. Lisa Nowinski, MABoston, MA 021141902067994
  30. Maren Nyer, PHDBoston, MA 021141093945438
  31. Colleen O'BrienCambridge, MA 021381942427992
  32. Dennis O'Brien, PSY.D.Milton, MA 021861306914221
  33. Michael O'BrienBoston, MA 021161790293827
  34. Deborah O'BryanNorwood, MA 020621861056509
  35. Conall O'Cleirigh, PHDBoston, MA 021141417159245
  36. Samantha O'Connell, PH.D.Quincy, MA 021711669674867
  37. Audrey O'Connor, PHDBoston, MA 021151235795741
  38. Maureen O'Connor, PSY.D.Bedford, MA 017301174584106
  39. Wendy O'Connor, PSY.D.Boston, MA 021141265765911
  40. Ronald O'Donnell, PH.D.Marlborough, MA 017521932364528
  41. Ashley O'Hearn, PSY.D.Revere, MA 021511861822553
  42. Jennifer O'Leary Tait, PH.D.Worcester, MA 016041982845061
  43. Beth O'Malley, PSY.D.Framingham, MA 017011255644092
  44. Kelly O'Malley, PH.D.Brockton, MA 023011912551276
  45. Monica O'Neal, PSY.D.Boston, MA 021161518028935
  46. Susan O'Neill, PSY.D.Leeds, MA 010531265585723
  47. Dede O'Shea, PH.D.Burlington, MA 018051679008619
  48. Mary O'Sullivan, ED.D.North Chelmsford, MA 018631952469884
  49. Judith Ockene, PH.D.Worcester, MA 016551528032810
  50. Peter Oconnor, PSY.D.Acton, MA 017201184603334

Source: CMS NPPES, primary taxonomy 103TC0700X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 4 of 51 per resident

  1. District of Columbia83
  2. Vermont48
  3. Rhode Island47
  4. Massachusetts45
  5. Hawaii45
  6. New York34
  7. 50 states and D.C.20

Source: CMS NPPES, primary taxonomy 103TC0700X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

12.0% of these records appear in a Medicare file, against 12.2% 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. Massachusetts12.0%
  2. United States12.2%

Clinical Psychologist records in Massachusetts, measured

  • In a Medicare file382 of 3,185 · 12.0% here, 12.2% nationally
  • In the CMS Doctors and Clinicians file777 · 24.4% here, 22.4% nationally
  • Not updated in five years or more2,248 · 70.6% here, 65.3% nationally
  • Median graduation year2000 · the 777 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 103TC0700X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

3,185 NPPES records list clinical psychologist (103TC0700X) as their primary taxonomy with a practice address in Massachusetts: 45 per 100,000 residents against 20 nationally (50 states and D.C.). Boston has 509 of them (16%).

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. Florida2,980
  2. Michigan2,965
  3. Texas2,732
  4. Pennsylvania2,597

States with a similar rate per 100,000

  1. Hawaii44.6
  2. Rhode Island46.5
  3. Vermont48.0
  4. New York33.5

The largest states

  1. California12,647
  2. New York6,558
  3. Illinois3,947
  4. Florida2,980
  5. Michigan2,965

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.