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 169 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. Heather Oneill, PSY.D.San Diego, CA 921011629113634
  2. Eddie Ong, PHDSan Francisco, CA 941101730257742
  3. Jing Wen Ong, PSYDSanta Cruz, CA 950641124998893
  4. Wendy Ong, PHDSan Francisco, CA 941151184178196
  5. Angela Cattleya Ongcapin, PH.D.La Habra, CA 906311356471429
  6. Lori Ono, PH.D.Walnut Creek, CA 945961487719928
  7. Lawrence Onoda, PHDMission Hills, CA 913451497825913
  8. Oscar Oo, PSY.D.Newport Beach, CA 926601427128156
  9. Miguel Oportot, PH.D.Long Beach, CA 908031568405538
  10. Albert Oppedisano, PSYDSan Diego, CA 921081598141772
  11. Peter Oppermann, PHDConcord, CA 945201205993367
  12. Aroldo Orantes, PSY.D.Bakersfield, CA 933081447576384
  13. Stephanie Orbon, PHDSan Diego, CA 921201437678406
  14. Kelvin Ore, PSY.D.Bell Gardens, CA 902011851687594
  15. Blanca Orellana, PH.D.Los Angeles, CA 900951942328497
  16. Pamela Orellana, PSY.D.Coalinga, CA 932101992903298
  17. Dora Oren, PHDWestlake Village, CA 913611174878268
  18. Zecharia Oren, PHDSanta Monica, CA 904031023133006
  19. Shira Oretzky, PH.D.Encinitas, CA 920241396988861
  20. Ling Orgel, PH DSan Francisco, CA 941151225005283
  21. Susan Orgera, PHDSan Diego, CA 921231720238611
  22. Monica Origer, PSY.D.Agoura Hills, CA 913011740633759
  23. Steven OrmaSanta Rosa, CA 954071801914825
  24. Annice Ormiston, PSYDBerkeley, CA 947091942588181
  25. Charlotte Ormond, PH.D.Palo Alto, CA 943061952622250
  26. Michele Ornelas Knight, PSY.D.Sacramento, CA 958201841275542
  27. Natalie Oropeza, PHDSan Jose, CA 951191750008876
  28. Susan Orovitz, PH.D.Fresno, CA 937041619965290
  29. Jacqueline OrozcoAtascadero, CA 934221659758969
  30. Martha Orozco, PSY.D.North Hills, CA 913431710237342
  31. Joan Orrell-Valente, PH.D.San Francisco, CA 941431215107545
  32. Constance Ortega, PSYDCosta Mesa, CA 926261295279081
  33. Kile Ortigo, PHDPalo Alto, CA 943061992294920
  34. Richard Ortigo, PSYDDiamond Bar, CA 917651154551158
  35. Amanda Ortiz, PH.D.Chula Vista, CA 919101437735545
  36. Carrie Ortiz, PH.D.Chowchilla, CA 936101174641120
  37. Francisco Ortiz, PSY.D.Bakersfield, CA 933131861660292
  38. Henry Ortiz, PSY.D.San Pedro, CA 907311538303094
  39. Jennifer Ortiz, PHD.Stanford, CA 943051538616651
  40. Joseph Ortiz, PHD, MFTRedlands, CA 923741306980982
  41. Maria Ortiz, PH.D.San Diego, CA 921141497980775
  42. Edwyn Ortiz-Nance, PSYD.Visalia, CA 932911467625368
  43. Enowoghomwenma OsaghaeSan Francisco, CA 941091881078798
  44. Janay Osantowski, PH.D.Santee, CA 920711619015807
  45. Sheryl Osato, PH.D.Los Angeles, CA 900731497851406
  46. Chelsee Osback, PH.D.Fresno, CA 937221568047421
  47. Rory Osborne, PH.D.Davis, CA 956161568467066
  48. Emma Oshagan, PH.D.Pasadena, CA 911071073631925
  49. Morenike Oshi-Ojuri, PSYDLafayette, CA 945491205296845
  50. Karen Osilla, PHDStanford, CA 943051174867147

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.