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 179 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. Wayne Levin, MDSan Diego, CA 921201629126404
  2. William Levin, M.D.Los Angeles, CA 900671447474671
  3. Anna Levin-Shohat, D.O.Berkeley, CA 947101346407491
  4. Claudia Levine, MDSan Rafael, CA 949031619026572
  5. Ellyn Levine, M.D.La Mesa, CA 919421760470546
  6. Joel Levine, MDLos Angeles, CA 900341720136674
  7. Jon Levine, M.D.San Francisco, CA 941431821025479
  8. Marcie Levine, MDStanford, CA 943051124084579
  9. Neil Levine, M.D.San Diego, CA 921031992732606
  10. Richard Levine, MDOakland, CA 946101427739812
  11. Bari Levinson, MDSan Rafael, CA 949031679657662
  12. Gary Levinson, M.D.La Jolla, CA 920371255399523
  13. Ernest Levister, MDSan Bernardino, CA 924041962577080
  14. Alexander Levy, MDDaly City, CA 940151821160649
  15. Jay Levy, MDSan Francisco, CA 941431285784256
  16. Jody Levy, M.D.Tarzana, CA 913561497849608
  17. Justin Levy, MDPasadena, CA 911051770937021
  18. Mark Levy, M.D.Sacramento, CA 958161982711909
  19. Michael Levy, MDSan Francisco, CA 941071245817741
  20. Nina Levy, MDValencia, CA 913551982687984
  21. Tamsin Levy, MDOakland, CA 946021023332673
  22. Dennis Lew, MDHarbor City, CA 907101760530729
  23. Henry Lew, M.D.Palo Alto, CA 943061144596842
  24. Homer Lew, D.O.Laguna Hills, CA 926531154452142
  25. Kristen Lew, M.DBanning, CA 922201841617420
  26. Robert Lew, M.D.San Diego, CA 921111730449596
  27. Thomas Lew, MDStanford, CA 943051104169168
  28. Sara Lewin, M.D.San Francisco, CA 941431558627059
  29. Alison Lewis, M.D.San Diego, CA 921151770674202
  30. Alwin Lewis, MDBurbank, CA 915011235164971
  31. Daniel Lewis, MD.Northridge, CA 913251508974718
  32. David Lewis, M.D.Mountain View, CA 940401316017858
  33. Greg Lewis, M.D.La Jolla, CA 920371063447811
  34. James LewisMountain View, CA 940401730244468
  35. Joshua Lewis, M.D.West Hollywood, CA 900481306113360
  36. Mark Lewis, MDMountain View, CA 940401891985800
  37. Mikaela Lewis, D.OMoreno Valley, CA 925551982995684
  38. Nathan Lewis, MDPasadena, CA 911051912923004
  39. Negin Lewis, M.D.Sacramento, CA 958161396129896
  40. Ashley Lewis HunterSanta Monica, CA 904041629367859
  41. John Lewison, MDSouth Lake Tahoe, CA 961501497795678
  42. Alexis Leyba, MDLos Angeles, CA 900891942959424
  43. Aida Li, MDHayward, CA 945451972681716
  44. Albert Li, MDRiverside, CA 925061700868510
  45. Aldon Li, M.D.West Hollywood, CA 900481710146915
  46. Alexander Li, MDLos Angeles, CA 900071427185412
  47. Cuiping Li, MDFremont, CA 945381174085690
  48. Cynthia Li, MDSan Francisco, CA 941101811011638
  49. Dan Li, M.D.Newbury Park, CA 913201659309037
  50. Derek Li, MDFontana, CA 923351902973845

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.