NPPES file of Aug 9, 2026

Internal Medicine Physician in California

17,696 NPPES records list internal medicine physician with a practice address in California, 45 per 100,000 residents, the 17th 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 172 of 354.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207R00000X · 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, 1,423

  1. Los Angeles1,423
  2. San Francisco1,318
  3. San Diego961
  4. Sacramento601
  5. Oakland432

Internal Medicine Physician records in California

  1. Leonard Lazarus, M.D.La Jolla, CA 920371851314413
  2. Mark Lazarus, M.D.Chula Vista, CA 919101902195746
  3. Nancy Lazarus, M.D.Martinez, CA 945531073598223
  4. Stephen Lazarus, MDSan Francisco, CA 941431659324531
  5. Tadd Lazarus, M.D.San Diego, CA 921211801919832
  6. Veronica Lazarus, M.DSanta Monica, CA 904031932476322
  7. Robert Lazatin, M.D.Laguna Hills, CA 926531700865755
  8. Alan Le, MDSouth San Francisco, CA 940801992884647
  9. Alyssa Le, M.DMission Viejo, CA 926911245461722
  10. Amanda Le, MDFremont, CA 945381326139916
  11. An Le, MDSacramento, CA 958161962071282
  12. Bryant LeOrange, CA 928681720728686
  13. Chinh Duy Le, MDOrange, CA 928681649350307
  14. Christina Le, MDMilpitas, CA 950351295809895
  15. Christine Le, D.O.Los Gatos, CA 950321881952588
  16. Dan Le, MDSan Jose, CA 951111962468314
  17. Duc Le, M.D.Chula Vista, CA 919111669587341
  18. Duy Le, M.D.Irvine, CA 926181891948527
  19. Elaine Le, MDWalnut Creek, CA 945961912057720
  20. Ha Le, MDMilpitas, CA 950351326127069
  21. Hai Le, MDVista, CA 920831659388155
  22. Hai Le, M.D.Irvine, CA 926181083804801
  23. Hoa Le, MDSan Mateo, CA 944011952356917
  24. Hoan Le, MDCosta Mesa, CA 926261982656740
  25. Huan D Le, MDWestminster, CA 926831902986664
  26. Huong Le, MDCosta Mesa, CA 926261699727537
  27. Khanh LeSan Diego, CA 921031063152064
  28. Khoi Le, MDTorrance, CA 905051043746639
  29. Lara Le, MDEscondido, CA 920251043239841
  30. Lisa Le, MDMurrieta, CA 925631518650126
  31. Mai Le, DORiverside, CA 925051356632178
  32. Michael Le, MDLos Alamitos, CA 907201578251195
  33. Michael Le, M.D.Huntington Beach, CA 926471750332409
  34. Minh Le, M.D.San Jose, CA 951121700999414
  35. Minh Tri Le, MDBaldwin Park, CA 917061235254772
  36. Nam Le, D.O.Midway City, CA 926551750607644
  37. Peter Le, MDOakland, CA 946111265655773
  38. Shawna Le, MDCosta Mesa, CA 926271265061451
  39. Son Le, M.D.Rosemead, CA 917701942290762
  40. Son Le, M.D.Garden Grove, CA 928441861441552
  41. Tam Le, M.DRosemead, CA 917701154480077
  42. Tam Le, MDGarden Grove, CA 928441336381607
  43. Thomas Le, D.O.Newport Coast, CA 926571992954481
  44. Thucminh LeLakewood, CA 907121952754863
  45. Thuy-Tien Le, MD, MPHFairfield, CA 945341821418302
  46. Thuyvy Le, DOSan Jose, CA 951211841751088
  47. Tinh-Uyen Le, MDSan Jose, CA 951191093891517
  48. Tuan Le, M.D.San Jose, CA 951211982602710
  49. Valerie Le, FNP-CSan Jose, CA 951221568004257
  50. Victor Le, M.D.Alhambra, CA 918011669767406

Source: CMS NPPES, primary taxonomy 207R00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 17 of 51 per resident

  1. New Jersey50
  2. New Hampshire48
  3. Minnesota46
  4. California45
  5. Florida45
  6. Ohio45
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 207R00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

79.5% of these records appear in a Medicare file, against 78.7% 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. California79.5%
  2. United States78.7%

Internal Medicine Physician records in California, measured

  • In a Medicare file14,068 of 17,696 · 79.5% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file11,077 · 62.6% here, 61.4% nationally
  • Not updated in five years or more10,832 · 61.2% here, 55.4% nationally
  • Median graduation year2004 · the 11,065 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207R00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

17,696 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in California: 45 per 100,000 residents against 44 nationally (50 states and D.C.). Los Angeles has 1,423 of them (8%).

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 York12,067
  2. Florida10,151
  3. Texas9,175
  4. Pennsylvania7,300

States with a similar rate per 100,000

  1. Minnesota45.9
  2. Ohio44.8
  3. New Hampshire48.0
  4. Maine42.8

The largest states

  1. New York12,067
  2. Florida10,151
  3. Texas9,175
  4. Pennsylvania7,300
  5. Illinois7,238

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.