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 112 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. Patrick Wolcott, MDEl Centro, CA 922431891722120
  2. Thomas Wold, M.D.Mather, CA 956551598740763
  3. Seghen WoldaiSacramento, CA 958171952277188
  4. Jeffrey Wolf, M.D.San Francisco, CA 941431720077480
  5. Laurence WolfRoss, CA 949571215264379
  6. Karen Wolfe, L.R.E.Beverly Hills, CA 902101396444832
  7. Larry Wolff, M.D.Sacramento, CA 958191588613749
  8. Shiela WolfordSan Gabriel, CA 917751871962530
  9. Fredrick Wolk, M.D.Redondo Beach, CA 902771669426078
  10. Sean Wollaston, M.D.North Hollywood, CA 916071316921075
  11. Chong Man Won, MDLos Angeles, CA 900101487941316
  12. Christine Wondergem, O.T.R.Visalia, CA 932771821228065
  13. Alice Wong, MT-BCMillbrae, CA 940301598031254
  14. Aron WongSan Francisco, CA 941021942622006
  15. Carol WongSan Francisco, CA 941121437911468
  16. Cedric Wong, M.D.Folsom, CA 956301396702684
  17. Douglas Wong, M.D.Fresno, CA 937201699778399
  18. Eric WongOakland, CA 946121669492021
  19. Gladys Wong, M.T.Daly City, CA 940141689902447
  20. Gordon Wong, M.D.Sacramento, CA 958191811072861
  21. Hannah Wong, M.D.Sacramento, CA 958161760654495
  22. Holly WongSan Francisco, CA 941101871044610
  23. I Wong, M.D.Irvine, CA 926061104036599
  24. Ivan Wong, MDVan Nuys, CA 914051043472772
  25. Jenny Wong, MS EDDaly City, CA 940141073143566
  26. John Wong, M.D.San Marino, CA 911081508109182
  27. Julie Wong, PTSan Francisco, CA 941151003850629
  28. Ka Yiu WongIrvine, CA 926021255711248
  29. King Wong, M.D.Pomona, CA 917671942320460
  30. Larry WongSan Francisco, CA 941021740602697
  31. Michael Wong, M.D.Los Angeles, CA 900571093906836
  32. Pamela WongSan Francisco, CA 941161730630039
  33. Patrick Wong, M.D.San Francisco, CA 941181346279932
  34. Rick Wong, CRTWestminster, CA 926831245380336
  35. Ronald Wong, M.D.Hanford, CA 932301184649220
  36. Amanda Wongsonegoro, CMTPetaluma, CA 949521649480039
  37. Frederick Wood, MDMurrieta, CA 925621164479473
  38. Samuel Wood, M.D., PH.D.San Diego, CA 921211619076635
  39. Kimberly Woodland, MOTR/LKentfield, CA 949041659739795
  40. Lewis Woods, M.D.Oakland, CA 946071194867226
  41. Cheryl Woodville, C.F.-ORTHOTICSChico, CA 959261427250158
  42. Timothy Woodville, CPOChico, CA 959261982608774
  43. Barbie Woodward, LEHayward, CA 945441740054246
  44. Devere Wootton, M.D.Santa Monica, CA 904041427162585
  45. Scott Worman, M.D.Oceanside, CA 920561558433276
  46. Robert Wormus, AUDGlendale, CA 912051699976209
  47. Christine Wright, CADCIIRedding, CA 960021588926323
  48. Judith WrightGrass Valley, CA 959451841218260
  49. Kathryn WrightManteca, CA 953371942510367
  50. Phillip Wright, M.D.Oakland, CA 946051396768883

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.