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 194 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. Mary Rosenfeld, PSY,D.Los Angeles, CA 900491467283812
  2. Arthur Rosengarten, PHDEncinitas, CA 920241568548063
  3. Julia Rosengren, PSY.D.San Diego, CA 921171801181276
  4. Shawn Rosenlof, PSY.D.Fresno, CA 937201912360942
  5. Pearl Rosenstrauch, PH.D.Newport Beach, CA 926601427866490
  6. Adi Rosenthal, PHDPalo Alto, CA 943041881137487
  7. Allen Rosenthal, PHDVallejo, CA 945911568076347
  8. Maryann Rosenthal, PH.D.San Diego, CA 921011174564561
  9. Lisa RosequistSanta Rosa, CA 954011407042914
  10. Cheryl Rosete, PH.D.Patton, CA 923691164686580
  11. Amy Rosett, PH.D.Encino, CA 914361497970651
  12. Steve Rosier, PSYDDelano, CA 932151063680627
  13. Donna Rosko, PSY DEscondido, CA 920251801213038
  14. Daniel Rosnik, PSY.DSan Francisco, CA 941151194079616
  15. Elayne Rosoff, PH.D.Santa Monica, CA 904031124014477
  16. Julie Rosoff, PHDSan Diego, CA 921301720807480
  17. Barry Ross, PH.D.Irvine, CA 926061932265980
  18. Bart Ross, PH.DHuntington Beach, CA 926491639105430
  19. Ben Ross, PSY.D.Newport Beach, CA 926601760020911
  20. David Ross, PSYDVallejo, CA 945891659068088
  21. David RossBerkeley, CA 947041417783622
  22. Elizabeth Ross, PH.D.Yucca Valley, CA 922841033891486
  23. Ellen Ross, PSY.D.San Jose, CA 951261629511159
  24. Parnian Ross, PSY.D.Norwalk, CA 906501376974113
  25. Sarah Ross, PHDBerkeley, CA 947091578847000
  26. Fernanda Rossi, PH.D.Stanford, CA 943051568156214
  27. Sheri Rossi, PSYDChowchilla, CA 936101093159337
  28. Taraneh Rostami, PSY.D.Los Angeles, CA 900731790267250
  29. Emily Rosten, PHDAtascadero, CA 934231043262504
  30. Mary Rotert, PH.D.Murrieta, CA 925621386789832
  31. Eric RothDelano, CA 932151154585107
  32. Erica Roth, PSY.D.Patton, CA 923691386927986
  33. Laura Roth, PSYCHOLOGISTLong Beach, CA 908071114432317
  34. Lisa Roth, PSY.D.San Francisco, CA 941181336501857
  35. Michelle Roth, PH.DSanta Ana, CA 927011366606386
  36. Steve Roth, PH.D.Eureka, CA 955011417971946
  37. Deborah Rothberg, PH.DLos Angeles, CA 900481952529240
  38. Heidi Rotheim, PH.D.Los Angeles, CA 900201124184783
  39. Joshua Rothenberg, PSYDSan Francisco, CA 941291346748126
  40. Donna Rothert, PH.D.Oakland, CA 946181386797751
  41. Carol Rotko, PSYDLos Angeles, CA 900391487182234
  42. Roland Rotz, PHDCarpinteria, CA 930131669744942
  43. Mary Rotzien, PH.D.Pasadena, CA 911011750406005
  44. Curtis RouanzoinPlacentia, CA 928701538388186
  45. Robert Rouault, PSY.D.Torrance, CA 905051215338405
  46. Angel Roubin, PSYDMontebello, CA 906401629385539
  47. Katrina Roundfield, PHDSan Francisco, CA 941051952839334
  48. John RouseOakland, CA 946121669664199
  49. Jonathan Rousell, PSY.D.San Francisco, CA 941021679005912
  50. Michele Roush, MA, RASISan Jose, CA 951121194026294

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.