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 177 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. Jean Lee Kim, MDWoodland Hills, CA 913671770631608
  2. Christian Lee Rodriguez, M.D.Oakland, CA 946111952763799
  3. Sarah Lee-Bui, DOAnaheim, CA 928061407432073
  4. Corinne Lee-Guzman, D.O.Davis, CA 956161528407384
  5. David Leeds, MDSan Francisco, CA 941091528646411
  6. Scott Leeds, MDBeverly Hills, CA 902101598738734
  7. Andrew Lees, MDLos Angeles, CA 900891871027748
  8. Christopher Lees, MDLos Angeles, CA 900951801473657
  9. Joel Lees, M.D.San Diego, CA 921341376517599
  10. Donna Leet, MDSan Francisco, CA 941431750918934
  11. Peter Lefevre, MDLos Angeles, CA 900951811908056
  12. Matthew Lefferman, DOLos Angeles, CA 900351184622417
  13. Michele Lefkowitz, MDPasadena, CA 911051033262407
  14. Katherine Leger, MDLos Angeles, CA 900891841796539
  15. Ashenafi Legesse, M.DFresno, CA 937201992149231
  16. William Leggett, MDSan Rafael, CA 949031215011283
  17. Bhupinder Lehil, M.D.Sacramento, CA 958111174905301
  18. Aaron Lehman, M.D.Ramona, CA 920651184638090
  19. Howard Lehrhoff, M.D.Pacific Palisades, CA 902721659493047
  20. Amy Lei, M.D.Sacramento, CA 958171376726059
  21. Calvin Lei, MDPleasanton, CA 945881265432967
  22. Karen Lei, MDLa Jolla, CA 920371184367427
  23. Nan Ye Lei, DOSouth San Francisco, CA 940801265936132
  24. Stephen Leibham, M.D.San Diego, CA 921261366451593
  25. Eric Leibovitch, M.D.Ventura, CA 930031811051246
  26. Mark Leibowitz, M.D.Long Beach, CA 908061144352907
  27. Naama Leibushor, MDOakland, CA 946021225280241
  28. Peter Leidl, MDLong Beach, CA 908061447257688
  29. Victoria Leigh, D.OLong Beach, CA 908061619372265
  30. Tesfaye Leka, M.D.Long Beach, CA 908071649231309
  31. Deepika Lekawa, M.D.Tustin, CA 927801437248846
  32. Mahesh Lellella, MDSan Leandro, CA 945771669050498
  33. Robert Lemaile-Williams, MDLos Angeles, CA 900261518074897
  34. Lauren LemieuxBakersfield, CA 933091912393463
  35. Bernard Lemke, M.D., M.A.Ukiah, CA 954821831174697
  36. Franklin Lemon, M.D.San Ramon, CA 945831457415143
  37. Robert Lemons, M.D.San Jose, CA 951191871693606
  38. Connor LemosTruckee, CA 961611699477067
  39. Tricia Len, MDSanta Monica, CA 904031588643795
  40. Michael Lennon, MDPetaluma, CA 949521093893596
  41. Zemmar Lenoir, MDPanorama City, CA 914021184772097
  42. Paul Lentz, MDOroville, CA 959651457424343
  43. Brian Lenzkes, M.D.San Diego, CA 921031922101534
  44. Alfredo Leon, M.D.Stockton, CA 952191497791214
  45. Elizabeth Leon, FNP-CBurbank, CA 915051679384572
  46. Jose Leon, MDBonita, CA 919021962471292
  47. Rebecca Leon, MDPalo Alto, CA 943011750498267
  48. Eva Leonard, M.D.La Mesa, CA 919421386602746
  49. Evelyne Leone, D.OLos Angeles, CA 900251558672741
  50. Andrew Leong, M.D.,Delano, CA 932161801080445

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.