NPPES file of Aug 9, 2026

Specialist in California

5,749 NPPES records list specialist with a practice address in California, 15 per 100,000 residents, the 19th highest rate of 51. San Francisco and Los Angeles have the most; each record links to the provider's NPI and the California license search. Page 20 of 115.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 174400000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

San Francisco has the most, 666

  1. San Francisco666
  2. Los Angeles301
  3. Sacramento241
  4. San Diego207
  5. Oakland198

Specialist records in California

  1. Evelyn ContrerasBurlingame, CA 940101356122360
  2. Louie-Marc ContrerasValencia, CA 913551629088661
  3. Heather Conway, ICCE, IBCLCSacramento, CA 958261700019825
  4. Albert Cook, MDHemet, CA 925431245396191
  5. Christopher CookSan Diego, CA 921101639214687
  6. Elizabeth CookSan Francisco, CA 941241447680814
  7. Kim Cookson, PSY.D.Los Angeles, CA 900251326245283
  8. Leslie Cooley, PH.D.Pacific Grove, CA 939501821478660
  9. Brittany CooperCosta Mesa, CA 926261578307633
  10. Carolyn Cooper, M.D.San Francisco, CA 941151518010560
  11. Robert Cooper, MDBeverly Hills, CA 902101538217781
  12. Margaret Cooper Vaughn, M.D.Los Gatos, CA 950321982607990
  13. Daniel CoopermanOakland, CA 946121194117598
  14. Anna Coopersmith, OTR/L, CHTSanta Rosa, CA 954011730573775
  15. Ross CopelandSan Francisco, CA 941021124558325
  16. Patricia Copeland-SmithLos Angeles, CA 900111558499947
  17. Aaron Coppelson, MDEncino, CA 914361891775235
  18. Chelsea CoppockWalnut Creek, CA 945981588149371
  19. Mark CorazzaSanta Barbara, CA 931051508808676
  20. Frederic Corbin, M.D.Brea, CA 928211114007168
  21. Kayti Corcoran, OTD, OTR/LTorrance, CA 905031932505955
  22. Jackie CorderoSan Francisco, CA 941031174952006
  23. Marlene Cordero, M.D.Templeton, CA 934651548290786
  24. Karla CordovaOakland, CA 946121992120992
  25. Nancy CoreyFremont, CA 945381912142498
  26. Robert Corlett, M.D.Santa Barbara, CA 931051639198161
  27. Maritza CoronaSacramento, CA 958251447620778
  28. Marshall Corren, M.D.Los Angeles, CA 900061992731830
  29. Gabriella CortesModesto, CA 953541205993979
  30. Julian CortesSan Diego, CA 921261285581629
  31. Diane CoseoSan Francisco, CA 941101245615459
  32. Ricardo Costa, M.D.Oceanside, CA 920561104249580
  33. Esteban CotaTorrance, CA 905021003341298
  34. Renee Cotter, MD A PROFESSIONAL COWest Hills, CA 913071861569428
  35. Shawn CouchOakland, CA 946051548637705
  36. Julie Coudoux, MPEncinitas, CA 920241538450259
  37. Louis Countryman, M.D.San Marino, CA 911081184612327
  38. Sergio Court, MDSan Jose, CA 951121164510756
  39. Ruth Cousineau, M.D.Beverly Hills, CA 902111386699726
  40. Danielle Covell, M.S., OTR/LRocklin, CA 956771386885465
  41. Catherine Covey, M.D.Castro Valley, CA 945461942213764
  42. Ned Cowan, M.D.Los Angeles, CA 900691649484007
  43. Mary Cox, P.T.Costa Mesa, CA 926261881890887
  44. Shanna Cox, M.D.Long Beach, CA 908061295881167
  45. Stanlee Cox, M.A.Camarillo, CA 930101588691737
  46. Katie CraftSan Francisco, CA 941581487435038
  47. Judy Craig, MSWAnaheim, CA 928051073711289
  48. Sylvia Cramer, DR.P.H.Redlands, CA 923731821430653
  49. Emily Crandall, M.D.Santa Monica, CA 904031437257813
  50. Timothy CreceliusFresno, CA 937031639226038

Source: CMS NPPES, primary taxonomy 174400000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 19 of 51 per resident

  1. Massachusetts16
  2. West Virginia15
  3. Maryland15
  4. California15
  5. Minnesota15
  6. Delaware13
  7. 50 states and D.C.18

Source: CMS NPPES, primary taxonomy 174400000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

29.6% of these records appear in a Medicare file, against 17.0% 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. California29.6%
  2. United States17.0%

Specialist records in California, measured

  • In a Medicare file1,704 of 5,749 · 29.6% here, 17.0% nationally
  • In the CMS Doctors and Clinicians file1,076 · 18.7% here, 11.1% nationally
  • Not updated in five years or more4,403 · 76.6% here, 77.3% nationally
  • Median graduation year1989 · the 1,075 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 174400000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

5,749 NPPES records list specialist (174400000X) as their primary taxonomy with a practice address in California: 15 per 100,000 residents against 18 nationally (50 states and D.C.). San Francisco has 666 of them (12%).

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. Florida2,685
  2. Washington2,609
  3. Pennsylvania2,031
  4. Texas1,716

States with a similar rate per 100,000

  1. Minnesota14.6
  2. Maryland15.2
  3. West Virginia15.4
  4. Massachusetts15.7

The largest states

  1. New York22,636
  2. Florida2,685
  3. Washington2,609
  4. Pennsylvania2,031
  5. Texas1,716

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.