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 22 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. Jeffrey Wang, MDAnaheim, CA 928061558681213
  2. Victor Wang, DOLoma Linda, CA 923541245736438
  3. Gregory Warner, D.O.Vacaville, CA 956871073704326
  4. Shweta Warner, M.D.San Diego, CA 921201003075128
  5. Ronald Wasserman, M.D.Walnut Creek, CA 945981346268067
  6. Pornthep Wattanamano, MDSan Diego, CA 921091295738516
  7. David Webb, M.D.Long Beach, CA 908221609835073
  8. Anastasia Weiland, MDOrange, CA 928681104449834
  9. William Weinstein, MDPanorama City, CA 914021942371927
  10. Scott Weisenberg, M.D.Oakland, CA 946091366609042
  11. Barbara Weiser, M.D.Mather, CA 956551164419784
  12. Bruce WengMoreno Valley, CA 925551952472425
  13. Marquise Westbrook, MDTravis Afb, CA 945351437718756
  14. Donald Whang, M.D.Torrance, CA 905051922325521
  15. Alan White, MDLaguna Hills, CA 926531548229701
  16. Christine Wigen, M.D.Los Angeles, CA 900071891880142
  17. Matthew Wikler, M.D.San Diego, CA 921271518117282
  18. Timothy Wilkin, MDSan Diego, CA 921031740334978
  19. Jon Willen, M.D.West Hills, CA 913071124117593
  20. Byron Williams, M.D.Glendale, CA 912051295790319
  21. Soe Win, M.DBakersfield, CA 933011356645543
  22. Thida Win, M.DAlhambra, CA 918011871754507
  23. Dean Winslow, MDStanford, CA 943051255409835
  24. Drew Winston, MDLos Angeles, CA 900241265655203
  25. Robert Winters, M.D.Santa Monica, CA 904041760547533
  26. David Witt, MDSan Rafael, CA 949031710061783
  27. Mallory Witt, M.D.Torrance, CA 905021275687998
  28. Lory Wiviott, M.D.San Francisco, CA 941151548395437
  29. Peter Wolfe, M.D.Los Angeles, CA 900361407910201
  30. Joshua Wolfsohn, D.O.Camarillo, CA 930101205098456
  31. Joseph Wong, M.D.San Francisco, CA 941211831282532
  32. Khin Wong, MDRiverside, CA 925051225105042
  33. Pina Wong, MDMonterey Park, CA 917541730157504
  34. Vanessa Wormser, DOSan Francisco, CA 941171023514700
  35. Lauren Yanagimoto-Ogawa, MSPH, DOLos Angeles, CA 900951538697404
  36. Bryant YangSanta Monica, CA 904041790131746
  37. Janet Yang, M.D.Sacramento, CA 958171033475397
  38. Jung-I Yang, M.D.Irvine, CA 926181255309092
  39. Otto Yang, MDLos Angeles, CA 900951780604298
  40. Shu Yang, MDSanta Rosa, CA 954091093873119
  41. Michelle Yap, MDRedding, CA 960021023091980
  42. Taliha Yasin, MDPoway, CA 920641912361767
  43. Mona Yazdi, DOTorrance, CA 905051487186706
  44. Vivian Yeh, M.D.Pasadena, CA 911031407057318
  45. Edwin Yellin, MDNorthridge, CA 913241467670307
  46. Preethi Yeturu, M.D.San Jose, CA 951281477787448
  47. Norihiro Yogo, MDSan Diego, CA 921231346408523
  48. Thomas Yoo, MDInglewood, CA 903011407886260
  49. Gilmer Youn, M.D.Los Angeles, CA 900221336477926
  50. Bachir Younes, M.D. , M.P.H.Palm Desert, CA 922111184661571

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.