NPPES file of Aug 9, 2026

Clinical Psychologist in California

12,647 NPPES records list clinical psychologist with a practice address in California, 32 per 100,000 residents, the 7th highest rate of 51. Los Angeles and San Diego have the most; each record links to the provider's NPI and the California license search. Page 170 of 253.

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).

Los Angeles has the most, 1,268

  1. Los Angeles1,268
  2. San Diego983
  3. San Francisco802
  4. Oakland354
  5. Pasadena293

Clinical Psychologist records in California

  1. Lilya Osipov, PH.D.Palo Alto, CA 943011548603608
  2. Raquel Osorno, PSYDStanford, CA 943051497395131
  3. Kay Ostensen, PHDLaguna Beach, CA 926511104020189
  4. Michele Oster, PSY.D.San Diego, CA 921301295735280
  5. Christine Osterloh, PH.D.San Diego, CA 921031184647687
  6. Lindsey Osterman, PSYDConcord, CA 945201760628895
  7. Denise Ostermann, PH.D.San Juan Capistrano, CA 926751740554674
  8. Dawn Osterweil, PH.D.San Francisco, CA 941151992928527
  9. Randy Osuna, PH.D.Fresno, CA 937041609992627
  10. Holly Oswald, PSY.D.San Francisco, CA 941101437308954
  11. Tanveer Otal, PH.D.Patton, CA 923691124895842
  12. Patricia Othon, PHDLos Angeles, CA 900261518210186
  13. Laura Otis-Miles, PH.D., CPRPSan Diego, CA 921231407918089
  14. Sophia Ott, PSYDSan Jose, CA 951281750612040
  15. Karen Otte, PSY.D.Palo Alto, CA 943011235606401
  16. Jenica OtteroSan Francisco, CA 941111467089003
  17. Brooke Otterson, PSYDWalnut Creek, CA 945961134312267
  18. Tammy Ouellette, PSY.D.Fullerton, CA 928351669432589
  19. Jaseon Outlaw, PHDSan Leandro, CA 945781861747552
  20. Armine OvasapyanArcadia, CA 910061639364938
  21. Susan Overhauser, PH.D.Lafayette, CA 945491326413063
  22. Gyna Overholtzer, PSY.D.San Diego, CA 921081598183956
  23. Emily OverstreetBerkeley, CA 947041922518588
  24. Erin Overstreet, PSY.D.San Francisco, CA 941031588897052
  25. Daniela Owen, PH.D.Oakland, CA 946181932545639
  26. Jason Owen, PH.D., M.P.H.San Francisco, CA 941431356531040
  27. Patricia Owen, PH.D.Roseville, CA 957471700948791
  28. Deborah Owens, PH.D.Los Angeles, CA 900221750492732
  29. Emily Owens, PHDBeverly Hills, CA 902101386047496
  30. Jessica Oye-Trautloff, PSYDSan Diego, CA 921011174930283
  31. Leon Ozeran, PSY.DLos Angeles, CA 900171891934048
  32. Tulin Ozkaragoz, PH.DNorwalk, CA 906501932156973
  33. Elvins OzolinsPasadena, CA 911241578949103
  34. James Pace, PHDSan Bernardino, CA 924041699856229
  35. Mary Pacheco, PHDSan Francisco, CA 941021962625327
  36. Victor Pacheco, PSYCHOLOGISTVacaville, CA 956871306095880
  37. Nicolle Pacifico, PHDYorba Linda, CA 928861740708098
  38. Nathaniel Pack, PSY.D.Palo Alto, CA 943061437483518
  39. Alexandra PadillaMorgan Hill, CA 950371205650199
  40. Elizabeth PadillaOakland, CA 946121083850903
  41. Ricardo Padilla SanchezSan Francisco, CA 941101235966672
  42. Claudia Padula, PH.D.Stanford, CA 943051497340459
  43. Mi Jung Pae, PH.D.Wasco, CA 932801437398989
  44. Marshall Pagaling, PSY.D.Santa Barbara, CA 931111013725167
  45. Gigi PaganiSan Rafael, CA 949031326398850
  46. Benjamin Page, PSY.D.Palo Alto, CA 943061629407267
  47. Nicole Paglione, PSY.D.Lancaster, CA 935361679878987
  48. Seema Pai, PSYDFremont, CA 945381619054988
  49. Lauren Paige, PH.D.Los Angeles, CA 900731538876123
  50. Jennifer Paige Petersen, PSY.D.Walnut Creek, CA 945961952789562

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

California ranks 7 of 51 per resident

  1. Massachusetts45
  2. Hawaii45
  3. New York34
  4. California32
  5. Illinois31
  6. Connecticut31
  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.

8.7% 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. California8.7%
  2. United States12.2%

Clinical Psychologist records in California, measured

  • In a Medicare file1,104 of 12,647 · 8.7% here, 12.2% nationally
  • In the CMS Doctors and Clinicians file2,425 · 19.2% here, 22.4% nationally
  • Not updated in five years or more8,008 · 63.3% here, 65.3% nationally
  • Median graduation year2006 · the 2,424 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

12,647 NPPES records list clinical psychologist (103TC0700X) as their primary taxonomy with a practice address in California: 32 per 100,000 residents against 20 nationally (50 states and D.C.). Los Angeles has 1,268 of them (10%).

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 York6,558
  2. Illinois3,947
  3. Massachusetts3,185
  4. Florida2,980

States with a similar rate per 100,000

  1. Connecticut30.8
  2. Michigan29.5
  3. Colorado28.1
  4. Oregon27.0

The largest states

  1. New York6,558
  2. Illinois3,947
  3. Massachusetts3,185
  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.