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 110 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. Courtney WelchAnaheim, CA 928011972653905
  2. Donal Welch, AU.D.Tehachapi, CA 935611447310107
  3. James Welch, MDSacramento, CA 958171821245820
  4. Keith WelchVallejo, CA 945901497817639
  5. Amy Weliky, OTSouth Pasadena, CA 910301447237987
  6. Marie Wells, COMPUTER CERTIFICATEWoodland, CA 956951215059282
  7. Robert Wells, M.D.Danville, CA 945261255647392
  8. Tamara Wells, BA, ECSEGrass Valley, CA 959451376813386
  9. Robert Welti, M.D.Santa Barbara, CA 931051760525810
  10. Peter Welty, M.D.Long Beach, CA 908061356497226
  11. James Wendt, M.D.Newport Beach, CA 926631104825744
  12. Brant Wenegrat, M.D.Menlo Park, CA 940251114140480
  13. Michael Wensley, M.D.West Hollywood, CA 900461841336740
  14. Victor Werlhof, MDChico, CA 959261023055829
  15. Laurie Werner, M.D.Sacramento, CA 958201649355165
  16. James WestOakland, CA 946101306122247
  17. John West, M.D.Orange, CA 928681235199274
  18. Phillip West, M.D.Santa Barbara, CA 931051972510451
  19. Carol Westerman, OTCrescent City, CA 955311740406834
  20. George Westerman, M.D.Santa Barbara, CA 931011992740930
  21. Kenneth Westphal, MDSanta Cruz, CA 950651669545174
  22. Ervin Wheeler, M.D.La Jolla, CA 920371649290503
  23. Jonathan Wheeler, M.D.Newport Beach, CA 926631588723316
  24. Allison White, SLP CCCSanta Clarita, CA 913511629249834
  25. David White, BS, MS IN EDOceanside, CA 920541164630455
  26. Jeanette White, HEARING AID SPECIALConcord, CA 945181235228404
  27. John White, M.D.Danville, CA 945061669522512
  28. Sonya White, LMTSan Francisco, CA 941211053608620
  29. Terricka WhiteSan Francisco, CA 941031154869006
  30. Donna Whitehouse, M.D.Rancho Mirage, CA 922701356335251
  31. Maxine WhitfieldSan Diego, CA 921141912170176
  32. Flanagan Whitsitt, PAJoshua Tree, CA 922521134294382
  33. Laura Whittington, MTSan Diego, CA 921091891020574
  34. Geoffrey Wiedeman, M.D.Sacramento, CA 958161790721132
  35. Jamie Wiekamp, DPT 36269Fullerton, CA 928321639408602
  36. John Wieland, M.D.Laguna Beach, CA 926511851583777
  37. Georg Wieselthaler, M.D.San Francisco, CA 941431366713893
  38. Loretta Wilber, M.D.Loma Linda, CA 923501386731800
  39. Bruce Wilbur, M.D.San Jose, CA 951241649343591
  40. Leona Wilcox, OTR/LOakland, CA 946091477831444
  41. Norma Wilcox, OTRLPalo Alto, CA 943041124168083
  42. Mary Wilde, MDLa Jolla, CA 920371508901810
  43. Jeffrey Wilkens, M.D.West Hollywood, CA 900481619951555
  44. Doris WilkersonLos Angeles, CA 900171447585526
  45. Christopher WilkinsLong Beach, CA 908021558740779
  46. John Wilkinson, M.D.San Diego, CA 921201114092723
  47. Natalie WillardSan Diego, CA 921101376715243
  48. Ani WilliamsBeverly Hills, CA 902101417824137
  49. Courtney WilliamsCarmichael, CA 956081376401307
  50. Denise Williams, BASan Francisco, CA 941031134351380

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.