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 19 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. Ronald Sherman, MDSanta Ana, CA 927061295903631
  2. Kyla SherwoodTorrance, CA 905051700318698
  3. Razeq Shetab, M.D.Modesto, CA 953551063414977
  4. Daniel Shin, M.D.Mountain View, CA 940401427065960
  5. Jae Shin, M.D.Newport Beach, CA 926631669620142
  6. Vivian Shirvani, M.D., M.P.H.West Hollywood, CA 900481801988282
  7. Kimberly Shriner, MDPasadena, CA 911051003926882
  8. Nancy Shulman, M.D.Palo Alto, CA 943041356498091
  9. Thi Shwe, M.D.Modesto, CA 953551558668343
  10. Megan SidanaModesto, CA 953551780189308
  11. Javeed Siddiqui, MD, MPHRoseville, CA 956611770563967
  12. David Sidney, MDSanta Rosa, CA 954091841358975
  13. Meredith Silverman, MDWalnut Creek, CA 945961689802712
  14. Jeffrey Silvers, M.D.San Leandro, CA 945781033292701
  15. Peter Sim, M.D.Los Angeles, CA 900331659309672
  16. William Simmons, MDSan Francisco, CA 941431326537721
  17. Sudershan Singh, MDWoodland, CA 956951255597571
  18. Sunita Singh, MDSanta Cruz, CA 950651649508581
  19. Tulika Singh, M.D., M.S., AAHIVSOrange, CA 928681467692947
  20. Sara Sirajuddin, M.D.Pasadena, CA 911051568706059
  21. Anita Sircar, MDTorrance, CA 905051851553960
  22. Geetha Sivasubramanian, MDFresno, CA 937011306089479
  23. Jack Skarbinski, M.D.Berkeley, CA 947081992981823
  24. Sally Slome, MDOakland, CA 946111013095801
  25. Darvin SmithRedwood City, CA 940631568548535
  26. David SmithSan Diego, CA 921031609891761
  27. Karen Smith, MD, MPHNapa, CA 945591356495816
  28. Kevin Smith, M.D.Encinitas, CA 920241083863716
  29. Richard Smith, MDVista, CA 920841518979228
  30. Jessica So, MD, MS, MPHSanta Barbara, CA 931051518421726
  31. Elizabeth Soda, MDBelmont, CA 940021336315241
  32. Richard Sokolov, MDLos Angeles, CA 900481104858455
  33. Jay Solnick, MD, PHDSacramento, CA 958171407836810
  34. Sandeep Soni, M.D.Poway, CA 920641285716332
  35. Martha Sonnenberg, MDCulver City, CA 902321356483101
  36. Malini Soogoor, M.D.,Simi Valley, CA 930651659328185
  37. Brad Spellberg, M.D.Torrance, CA 905021720132475
  38. Jeffrey Spiro, M.D.San Diego, CA 921341548619612
  39. Jared Spotkov, MDHarbor City, CA 907101518019975
  40. Natasha Spottiswoode, MDSan Francisco, CA 941431003310376
  41. Jeanne Spudick, D.O.Newport Beach, CA 926601902824816
  42. Padmini Srikantiah, M.D. MPHSan Francisco, CA 941101760688303
  43. Kristina St.clair, D.O.Camp Pendleton, CA 920551083797948
  44. Ann Stapleton, MDPalm Springs, CA 922641851477582
  45. Barry Statner, MDSanta Barbara, CA 931051740378728
  46. Danielle Steed, MD/PHDSan Diego, CA 921031285165415
  47. Erika Steffe, MDSebastopol, CA 954721174602411
  48. Tomiko Stein, MD, MPHLos Angeles, CA 900271164416087
  49. David Stevens, MDSan Jose, CA 951281578656021
  50. Ethan Stewart, D.O.San Diego, CA 921201083989586

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.