NPPES file of Aug 9, 2026

Psychologist in California

7,304 NPPES records list psychologist with a practice address in California, 19 per 100,000 residents, the 13th highest rate of 51. Los Angeles and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 125 of 147.

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).

Los Angeles has the most, 671

  1. Los Angeles671
  2. San Francisco516
  3. San Diego431
  4. Oakland257
  5. Sacramento165

Psychologist records in California

  1. Claire Stagnaro, PSYDEncinitas, CA 920241700573672
  2. Jessica Stahl, PSY.DNevada City, CA 959591144487703
  3. Aubyn Stahmer, PHDSan Diego, CA 921231750417077
  4. Mark Stalnaker, PH.D.San Francisco, CA 941181841455987
  5. Wilhelmina Stamps, PSYDNorth Hills, CA 913431134808686
  6. Joanna Stan, PSY.D., M.S.Tarzana, CA 913561952685828
  7. Nancy Stancil, PHDLos Angeles, CA 900641760840672
  8. Jeanne Stanford, PH.D.Santa Barbara, CA 931061952642944
  9. Alison Stanley, PH.D.Elk Grove, CA 957581851612113
  10. Elizabeth Stanton, PSYDSan Diego, CA 921101164066072
  11. Kathleen Stanton, PH.DSan Francisco, CA 941101346697885
  12. Toni StarSanta Barbara, CA 931031639484173
  13. Richard Starrett, PSYCHOLOGISTCoalinga, CA 932101104138130
  14. William Staso, PHDRoseville, CA 957471477918654
  15. Anna Staudenmeyer, PHDSan Francisco, CA 941211750866489
  16. Geraldine StearnsCorcoran, CA 932121801327549
  17. Taylor StearnsSan Francisco, CA 941101316493661
  18. Ronna Steele, PH.D.Folsom, CA 956301699819102
  19. Helen Steenman, PH.D.Represa, CA 956711265602676
  20. Stephanie Stefanelli, PSY. DFullerton, CA 928351497194328
  21. Clarissa Steffen, EDDAuburn, CA 956031033268248
  22. Natalie Steffen, LEP, M.ED.Orinda, CA 945631265624217
  23. Alison Steffensen, PSYDWoodland, CA 956951689792707
  24. Bill Steh, PHDTravis Afb, CA 945351699781153
  25. Brenna Stein, PHDBerkeley, CA 947041700937117
  26. David Stein, PHDSan Francisco, CA 941151497822837
  27. Lindsey SteinBurlingame, CA 940101215802269
  28. Marsha Stein, PH.D.Newport Beach, CA 926601528280344
  29. Rebecca Stein, PSY.D.Greenbrae, CA 949041396956629
  30. Sandra Stein, PHDSan Francisco, CA 941151902048440
  31. Steven SteinMonte Sereno, CA 950301033055074
  32. Kelly Steinbach, PSYDRoseville, CA 956611154628857
  33. Beth Steinberg, PHDSan Francisco, CA 941181871767798
  34. Neil Steinberg, PH.D.Sebastopol, CA 954721518014059
  35. David Steinberger, PHDChino, CA 917101396812913
  36. Amanda Steiner, PHD, BCBA-DSacramento, CA 958171770194110
  37. Robert Steiner, PH.DSan Quentin, CA 949641124460688
  38. Ruth SteinhardtSan Jose, CA 951281972001790
  39. Sarah Steinmetz, PHDMenlo Park, CA 940251447808357
  40. Edward StellaSylmar, CA 913421235702374
  41. Mary StelterLawndale, CA 902601457799207
  42. Kristin Stent, PHDSan Mateo, CA 944031932382629
  43. Heather Stephens, PSY.D.San Diego, CA 921081477792422
  44. Laurie Stephens, PH.D.Encino, CA 914361063536407
  45. Sally Stephens, PH.D.Pasadena, CA 911011740445428
  46. Lisa Steres, PH.D.San Diego, CA 921271396821492
  47. Deborah Stern, PSYDLos Angeles, CA 900481487165650
  48. Nancy Stern, PH.D.Palo Alto, CA 943011780816975
  49. Thomas Stern, PHDSan Francisco, CA 941151821068610
  50. Jessica Stevens, PHDCarlsbad, CA 920111659498459

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

California ranks 13 of 51 per resident

  1. West Virginia20
  2. Nebraska19
  3. Maryland19
  4. California19
  5. Maine19
  6. North Dakota18
  7. 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.

6.2% 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. California6.2%
  2. United States10.1%

Psychologist records in California, measured

  • In a Medicare file453 of 7,304 · 6.2% here, 10.1% nationally
  • In the CMS Doctors and Clinicians file1,058 · 14.5% here, 18.0% nationally
  • Not updated in five years or more4,318 · 59.1% here, 63.9% nationally
  • Median graduation year2005 · the 1,058 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

7,304 NPPES records list psychologist (103T00000X) as their primary taxonomy with a practice address in California: 19 per 100,000 residents against 14 nationally (50 states and D.C.). Los Angeles has 671 of them (9%).

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. New York5,045
  2. Pennsylvania2,687
  3. Michigan2,549
  4. Massachusetts2,367

States with a similar rate per 100,000

  1. Maine18.6
  2. Maryland19.1
  3. North Dakota18.2
  4. Nebraska19.3

The largest states

  1. New York5,045
  2. Pennsylvania2,687
  3. Michigan2,549
  4. Massachusetts2,367
  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.