NPPES file of Aug 9, 2026

Infectious Disease Physician in California

1,119 NPPES records list infectious disease physician with a practice address in California, 2.9 per 100,000 residents, the 25th highest rate of 51. Los Angeles and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 4 of 23.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RI0200X · 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, 147

  1. Los Angeles147
  2. San Francisco108
  3. San Diego76
  4. Stanford58
  5. Sacramento56

Infectious Disease Physician records in California

  1. Joshua Chen, D.O.Newport Beach, CA 926631750745873
  2. Lynette Chen, MDLoma Linda, CA 923571942554977
  3. Michael Chen, MDSacramento, CA 958171689362253
  4. Jennifer Cheng, D.O.Walnut Creek, CA 945981669791612
  5. Quen ChengLos Angeles, CA 900951194091298
  6. Teera Chentanez, M.D.Pleasant Hill, CA 945231225230485
  7. Franco Chevalier, MDSan Francisco, CA 941101679078828
  8. Kara Chew, M.D.Los Angeles, CA 900351013116557
  9. Bela Chheda, M.D.Walnut Creek, CA 945981790717049
  10. John Chia, MDTorrance, CA 905051801876412
  11. Lisa Chiang, M.D.Downey, CA 902421215097076
  12. Tom Chiang, M.D.Mission Hills, CA 913451346345758
  13. Catherine Chien, MDLos Angeles, CA 900151215928460
  14. Peter Chin-Hong, MDSan Francisco, CA 941431215988563
  15. Raymond Chinn, M.D.San Diego, CA 921231134113509
  16. Valerie Chirurgi, MDPleasanton, CA 945881992777080
  17. Bor-Han Chiu, D.O.Los Angeles, CA 900341306239470
  18. Charles Chiu, M.D., PH.D.San Francisco, CA 941071598797268
  19. Umber Chohan, M.D.Fontana, CA 923351942452776
  20. Byungwoo Choi, M.D.Camarillo, CA 930121295006948
  21. Chester Choi, M.D.Long Beach, CA 908131730197344
  22. Laurie Chu, MDBellflower, CA 907061013084029
  23. Helen Chun, MDSan Diego, CA 921341649245408
  24. Rachel CivenLos Angeles, CA 900121154787919
  25. Angelo Clemenzi-Allen, M.D.San Francisco, CA 941431770842684
  26. Hayley ClevelandSan Luis Obispo, CA 934011811428998
  27. Wendy Clough, M.D.Newhall, CA 913211225077175
  28. Dana Clutter, M.D.South San Francisco, CA 940801821309717
  29. Michael Cohen, M.D.Valencia, CA 913551871517995
  30. Stephanie Cohen, M.D.San Francisco, CA 941101043411317
  31. Stephen Cohen, MDSan Francisco, CA 941161003241878
  32. Stuart Cohen, M.D.Sacramento, CA 958171043290455
  33. John Colford, MD, MPH, PHDSan Francisco, CA 941211669485215
  34. Sean Collins, M.D.Stanford, CA 943051962661918
  35. Jessica Costales-Cantrell, DOLos Angeles, CA 900271063948537
  36. James Couperus, M.D.Loma Linda, CA 923541801813977
  37. Brian Courtney, M.D.Chico, CA 959261023052677
  38. Vincent Covelli, D.O.Victorville, CA 923951528354347
  39. Anne Cowell, M.D.La Jolla, CA 920371639494420
  40. Scott Crabtree, MDTravis Afb, CA 945351932360526
  41. Linda Croad, MDPanorama City, CA 914021548331457
  42. Adolfo Cuesta, MDSan Francisco, CA 941431194302166
  43. Percival Cueva, MDWalnut Creek, CA 945961750433975
  44. Coleen Cunningham, M.D.Orange, CA 928681205999075
  45. Judith Currier, MDLos Angeles, CA 900951508882614
  46. Carlos D'Assumpcao, MDBakersfield, CA 933061053806067
  47. Eric Daar, M.D.Torrance, CA 905021336119676
  48. Sanjeet Dadwal, MDDuarte, CA 910101669589537
  49. Rina DaghlianTarzana, CA 913561720839277
  50. Sudeb Dalai, MD, PHDPalo Alto, CA 943011043656697

Source: CMS NPPES, primary taxonomy 207RI0200X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 25 of 51 per resident

  1. Vermont2.9
  2. Hawaii2.9
  3. Wisconsin2.9
  4. California2.9
  5. Louisiana2.8
  6. Virginia2.8
  7. 50 states and D.C.3.2

Source: CMS NPPES, primary taxonomy 207RI0200X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

78.6% of these records appear in a Medicare file, against 79.0% 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. California78.6%
  2. United States79.0%

Infectious Disease Physician records in California, measured

  • In a Medicare file880 of 1,119 · 78.6% here, 79.0% nationally
  • In the CMS Doctors and Clinicians file735 · 65.7% here, 68.4% nationally
  • Not updated in five years or more657 · 58.7% here, 56.5% nationally
  • Median graduation year2003 · the 735 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RI0200X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,119 NPPES records list infectious disease physician (207RI0200X) as their primary taxonomy with a practice address in California: 2.9 per 100,000 residents against 3.2 nationally (50 states and D.C.). Los Angeles has 147 of them (13%).

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 York970
  2. Florida760
  3. Texas674
  4. Pennsylvania545

States with a similar rate per 100,000

  1. Wisconsin2.9
  2. Hawaii2.9
  3. Vermont2.9
  4. Louisiana2.8

The largest states

  1. New York970
  2. Florida760
  3. Texas674
  4. Pennsylvania545
  5. Massachusetts487

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.