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 9 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. Kuo-Liang Huang, M.D.Colton, CA 923241588746010
  2. Susan Huang, MDOrange, CA 928681346207651
  3. Winnie Huang, MDLos Angeles, CA 900341376610204
  4. Elizabeth Hudson, DOSan Mateo, CA 944031952475667
  5. Wint Thu HunGlendale, CA 912081669738886
  6. Peter Hunt, MDSan Francisco, CA 941101730296484
  7. Sang Jo Hwang, DOFresno, CA 937011013560994
  8. Steven Hwang, M.D.Los Angeles, CA 900191235334749
  9. Yenjean Hwang, M.D.Oakland, CA 946091194744557
  10. Michael Ing, M.D.Loma Linda, CA 923571578665154
  11. Raza Iqbal, M.D.Yorba Linda, CA 928871790886869
  12. Dennis IsraelskiSan Mateo, CA 944031831263540
  13. Shaker Itani, M.D.Los Angeles, CA 900331538193826
  14. James Ito, MDLa Verne, CA 917501427165463
  15. Karen Jacobson, MDStanford, CA 943051396130464
  16. Susan Jacobson, MDFremont, CA 945381639254303
  17. Prasanna Jagannathan, M.D.Stanford, CA 943051750588448
  18. Anil Jagtiani, M.D.Santa Barbara, CA 931051124420609
  19. Vivek Jain, M.D.San Francisco, CA 941431093747248
  20. Ziba Jalali, MDWest Hollywood, CA 900481902855232
  21. Layli Jamali, M.D.San Francisco, CA 941091598059644
  22. Timothy Jang, MDWalnut Creek, CA 945981801358775
  23. Paul JanoianLos Angeles, CA 900951144665936
  24. Deepthi Jayasekara, MDClaremont, CA 917111366426306
  25. Arthur Jeng, M.D.Sylmar, CA 913421013070499
  26. Peter Jensen, M.D.San Francisco, CA 941211598772733
  27. Ji Il Jeon, MDFresno, CA 937011710629043
  28. Silpa Jetty, MDWalnut Creek, CA 945981164050266
  29. Eric Jiang, DOTorrance, CA 905021457055477
  30. Hua Jiang, MDClaremont, CA 917111821072844
  31. Aditya Jones, D.O.Los Angeles, CA 900591255884771
  32. Brenda JonesLos Angeles, CA 900331205981982
  33. Edward Jones-Lopez, MDOrange, CA 928681558392704
  34. Ryan Joo, M.D.Pasadena, CA 911061639301922
  35. Kathleen Jordan, M.D.San Francisco, CA 941141679630685
  36. William Joseph, M.D.San Ramon, CA 945831356423255
  37. Seth Judson, MDLos Angeles, CA 900951922560408
  38. Sean Jung, MDOrange, CA 928681215592076
  39. Mohammad Jaber Kabbesh, MDSacramento, CA 958191356367809
  40. Ankita Kadakia, MDSan Diego, CA 921031598957490
  41. Elizabeth Kailath, MD,MPHFair Oaks, CA 956281952372765
  42. Praneet Kalkat, MDPasadena, CA 911061013440114
  43. Ranjani Kalyan, M.D.Roseville, CA 956611669644563
  44. Saman Kannangara, MDSan Francisco, CA 941091508893421
  45. Nahel Kapadia, MDSacramento, CA 958161861050494
  46. Minal Kapoor, MDLos Gatos, CA 950321962549220
  47. Shanthi Kappagoda, M.D.Stanford, CA 943051720195381
  48. Abraar Karan, MD, MPHPalo Alto, CA 943051023546009
  49. Ellora Karmarkar, MDStanford, CA 943051952715518
  50. Richard Karp, MD, MPHOakland, CA 956121538170253

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.