NPPES file of Aug 9, 2026

Psychologist in Massachusetts

2,367 NPPES records list psychologist with a practice address in Massachusetts, 34 per 100,000 residents, the 3rd highest rate of 51. Boston and Cambridge have the most; each record links to the provider's NPI and the Massachusetts license search. Page 10 of 48.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 103T00000X · 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, 457

  1. Boston457
  2. Cambridge184
  3. Brookline98
  4. Worcester81
  5. Newton79

Psychologist records in Massachusetts

  1. Christine Darsney, PHDCohasset, MA 020251093734097
  2. Jaine Darwin, PSY.D.Cambridge, MA 021381417980780
  3. Peter Dasilva, ED.D.Belchertown, MA 010071952897100
  4. Maria Daversa, PH. D.Cambridge, MA 021391134443823
  5. Thomas Davey, ED.D.Boston, MA 021151780790709
  6. Sigurros Davidsdottir, PH.D.Boston, MA 021141396932919
  7. Ryan Davidson, PHDBoston, MA 021151376101204
  8. Alekzander Davila, PHDWatertown, MA 024721023759453
  9. Angelia Davis, PH.D.Chelmsford, MA 018241598562761
  10. Lindsey Davis, PH.D.Brookline, MA 024451083131163
  11. Rochelle Davis, ED DCambridge, MA 021381295790095
  12. Cristina Davy, PH.D.Groton, MA 014501467633461
  13. Stephanie Day, M.A.Cambridge, MA 021391275796823
  14. Patricia Dean, PSYDWaban, MA 024681619028743
  15. Andrea Debarros, PH.D.Framingham, MA 017021225704406
  16. Donald Deblock, PH.D.Wenham, MA 019841912094202
  17. Thilo Deckersbach, PHDBoston, MA 021141851377055
  18. Miriam Defant, PH.D.Orange, MA 013641811006877
  19. Lisa Degrass, PHDNorwood, MA 020621346521283
  20. Edmund Delacour, PH.D.Northampton, MA 010601285768440
  21. Jaris Delgado, M.SSpringfield, MA 011041720496839
  22. Katherine Dellaporta, PSY.D.Boston, MA 021081396052940
  23. Brynn Delorenzo, PHDBoston, MA 021141306463666
  24. Sean Demartino, PSY.D.Springfield, MA 011031205253143
  25. Elaine Demos, EDDStockbridge, MA 012621366587511
  26. Jennifer Denaro, PSY.D.Medway, MA 020531336345628
  27. Marlene Denessen, PHDWellfleet, MA 026671043362007
  28. Marissa Dennis, PHDBrookline, MA 024451841999067
  29. Stefanie Denu, PSYDBoston, MA 021151558932293
  30. Sohenga Depestre, PSYDBoston, MA 021181053961201
  31. Joan Deppe, PSY.D.Arlington, MA 024761366505794
  32. Celeste Derecho, PH.DDorchester, MA 021221184601270
  33. Jennifer Desaulniers, PSY.D.Concord, MA 017421841555042
  34. Anthony Deserpa, M. ED.East Bridgewater, MA 023331659674349
  35. Ilannah DeshazierBrockton, MA 023011144909029
  36. Katelyn DesrosiersBoston, MA 021141841748902
  37. Robin Deutsch, PHDBoston, MA 021141841280658
  38. Pamela Devaney, PSY.D.Andover, MA 018101295771533
  39. Rosalyn Devincentis, PSY.DSouth Hadley, MA 010751164086963
  40. Martha Dewitt, PH.D.Belmont, MA 024781144209396
  41. Anne-Cecile Dewulf, PHDLowell, MA 018521568660603
  42. Patricio Dhimitri, PSYCHOLOGISTLawrence, MA 018401023130960
  43. Frank Dibert, PSYCHOLOGISTBoston, MA 021141174872170
  44. Marciana Didomenico, PHDWinchester, MA 018901114410826
  45. Diana Dill, ED.D.Belmont, MA 024781891831129
  46. Dale Dillavou, PHDCambridge, MA 021381841336757
  47. Diane Dillon, PHDGreat Barrington, MA 012301821531815
  48. Lauren Dilullo, PSYDBoston, MA 021151063026003
  49. Karissa DimarzioBoston, MA 021181851130512
  50. Maria DimatteoMilford, MA 017571053031435

Source: CMS NPPES, primary taxonomy 103T00000X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 3 of 51 per resident

  1. District of Columbia49
  2. Vermont40
  3. Massachusetts34
  4. Minnesota30
  5. New York26
  6. 50 states and D.C.14

Source: CMS NPPES, primary taxonomy 103T00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

10.9% of these records appear in a Medicare file, against 10.1% 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. Massachusetts10.9%
  2. United States10.1%

Psychologist records in Massachusetts, measured

  • In a Medicare file258 of 2,367 · 10.9% here, 10.1% nationally
  • In the CMS Doctors and Clinicians file487 · 20.6% here, 18.0% nationally
  • Not updated in five years or more1,608 · 67.9% here, 63.9% nationally
  • Median graduation year1997 · the 487 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 103T00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

2,367 NPPES records list psychologist (103T00000X) as their primary taxonomy with a practice address in Massachusetts: 34 per 100,000 residents against 14 nationally (50 states and D.C.). Boston has 457 of them (19%).

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. Florida2,202
  2. Michigan2,549
  3. Texas2,141
  4. Pennsylvania2,687

States with a similar rate per 100,000

  1. Puerto Rico36.4
  2. Minnesota29.5
  3. Vermont40.2
  4. New York25.8

The largest states

  1. California7,304
  2. New York5,045
  3. Pennsylvania2,687
  4. Michigan2,549
  5. Florida2,202

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.