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 12 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. Sophia Lewis, MDSan Francisco, CA 941431184249468
  2. John Li, M.D.West Hills, CA 913071487678041
  3. Katherine Li, MDLos Angeles, CA 900951235699414
  4. Leo Li, MDMontebello, CA 906401154463149
  5. Robert Libke, M.D.Fresno, CA 937011497780985
  6. Kenneth Lichtenstein, MDPalm Springs, CA 922641740370428
  7. Amos LichtmanLos Angeles, CA 900951801258389
  8. Anthony Lieu, MDStanford, CA 943051780361667
  9. Dale Lieu, MDSan Diego, CA 921201003964099
  10. Mark Lillo, MDSanta Clara, CA 950511497831325
  11. Matthew Lim, M.D.San Diego, CA 921341467576918
  12. Abhijit Limaye, MDSan Francisco, CA 941431205972239
  13. Aung Lin, DOMountain View, CA 940401124521935
  14. Jamie Lin, M.D.Los Angeles, CA 900331811199854
  15. Rebecca Linfield, MDLos Angeles, CA 900951831650571
  16. Jennifer Ling, M.D.San Francisco, CA 941091558685826
  17. Jeanne Linquist, M.D.San Mateo, CA 944031720143803
  18. David Lintz, MDBeverly Hills, CA 902111407848245
  19. Eugene Liu, MDLoma Linda, CA 923541700049376
  20. Fang-Yu Liu, MDWestlake Village, CA 913611104311216
  21. Jia-Yia Liu, MDWest Hollywood, CA 900481639162266
  22. Minghsun Liu, M.D., PH.D.Los Angeles, CA 900341518096270
  23. Nathan Lo, MD PHDStanford, CA 943051336600535
  24. Cathy Logan, MDSan Diego, CA 921031467664169
  25. John Lok, M.D.Fountain Valley, CA 927081992713028
  26. David Looney, M.D.San Diego, CA 921611912955048
  27. Uri Lopatin, M.D,San Francisco, CA 941031508840406
  28. Janice Louie, MD, MPHSan Francisco, CA 941101194914622
  29. Michael Lovett, MDLos Angeles, CA 900951053330902
  30. Robert Lowe, M.D.Grass Valley, CA 959451003841370
  31. Hayden Lowenstein, M.D.Los Angeles, CA 900481437446648
  32. Tommy Lu, M.D.Monterey Park, CA 917541699795757
  33. Anne Luetkemeyer, MDSan Francisco, CA 941101346378940
  34. Tracy Lumsden, PASacramento, CA 958141407817570
  35. Kelsey Luna, MDLoma Linda, CA 923501497336291
  36. Ruihong Luo, MDTorrance, CA 905051912267121
  37. Tyler Luu, MDSan Francisco, CA 941431225665789
  38. Luong Ly, MDPasadena, CA 911051538101670
  39. Emily Lydon, MDSan Francisco, CA 941431548720733
  40. Andrew Ma, MDThousand Oaks, CA 913601528299708
  41. Edward Machtinger, MDSan Francisco, CA 941431518017581
  42. Raul Macias Gil, M.D.Torrance, CA 905021538554688
  43. William Mackenzie, M.D.Mather, CA 956551073561601
  44. Kathleen Macleod, M.D.Los Alamitos, CA 907201821066077
  45. Michele Maison-Fomotar, MDFresno, CA 937011407210453
  46. Sumit Majumder, M.D.Los Gatos, CA 950321245317692
  47. Azure Makadzange, MDStanford, CA 943051841440716
  48. Bhavna Malik, MDWalnut Creek, CA 945981437231537
  49. Ghaus Malik, MDLodi, CA 952401104861376
  50. Katherine Malkasian, M.D.Newport Beach, CA 926601336192327

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.