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 24 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. Tara DelgadoLos Angeles, CA 900361144478611
  2. Vincent DelgadoDaly City, CA 940141730067216
  3. Jamie DelmanSan Francisco, CA 941211962855817
  4. Soheila Delrahim, M.D.Porter Ranch, CA 913261508019746
  5. Tessa Delsener, CESan Francisco, CA 941091912606682
  6. Tanya DelucaChico, CA 959261073962098
  7. Dana Delvalle, RDHPacific Grove, CA 939501427817196
  8. Anthony DemarioSacramento, CA 958171154792216
  9. Robert DemarrSan Francisco, CA 941021225450281
  10. Joyce DemonteverdeSan Francisco, CA 941101891199881
  11. Denis Dempsey, P.T.Newbury Park, CA 913201720012495
  12. Stephen DempseySan Francisco, CA 941161124580089
  13. Ashlee Denaro, P.T.Laguna Hills, CA 926531265773048
  14. Neil DenautSantee, CA 920711467850115
  15. David Denenholz, M.D.Pasadena, CA 911061801837331
  16. Yueqing DengSan Francisco, CA 941211649949918
  17. Denette Dengler, M.D.Sacramento, CA 958161376585018
  18. Steven DenmarkSalinas, CA 939011487624094
  19. Ryan DenningVisalia, CA 932771699978023
  20. John Dennis, CAS REG.Placerville, CA 956671225162480
  21. Stephanie Dentoni, M.D.Stockton, CA 952041821099888
  22. Jasminka Depovic, MDLaguna Hills, CA 926531609066612
  23. Michael DeppecarterEureka, CA 955031851533251
  24. Karapet Dermendjian, M.D.Los Angeles, CA 900271326059452
  25. Mika Derynck, M.D.San Mateo, CA 944021477914307
  26. Margaret Desa, M.D.Santa Ana, CA 927011144247990
  27. Manoj Desai, M.D.San Pablo, CA 948061043237597
  28. Megan DesaiEscondido, CA 920291578485074
  29. Sanjay Deshmukh, M. D.Santa Ana, CA 927051487642377
  30. Chandra Desilva, M.D.San Bernardino, CA 924081801978812
  31. Tina Desnoyers, CASIISacramento, CA 958271215057948
  32. Douglas Deutsch, M.D.Merced, CA 953481629000872
  33. Margie Deutsch Lash, MSED, IBCLC, LLLLIrvine, CA 926041194933424
  34. Reena DevarajMoreno Valley, CA 925511962677146
  35. Ganesh Devendra, MDSimi Valley, CA 930651083681134
  36. John Devor, M.D.Lafayette, CA 945491588680920
  37. Kailash Dhamija, M.D.Artesia, CA 907011548209976
  38. Maydha DhanukaSacramento, CA 958171457177487
  39. Gurmohan DhillonSan Francisco, CA 941431649558347
  40. Surisham Dhillon, M.D.Newhall, CA 913211770652299
  41. Thomas Di Julio, M.D.Long Beach, CA 908041396712188
  42. Adriana Diakiw, M.D.San Diego, CA 921061780785220
  43. Jennifer DialTustin, CA 927801487073284
  44. Dianna Diallo, MDMonterey, CA 939401417994708
  45. Irene DiamondSan Francisco, CA 941231730425117
  46. Karin DiamondMenlo Park, CA 940251710586896
  47. Denise Diani, PTAptos, CA 950031134479058
  48. Christopher DiazIndio, CA 922011730584590
  49. David Diaz, M.D.Fountain Valley, CA 927081114009693
  50. Ernie DiazBakersfield, CA 933081962830547

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.