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 184 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. Yenchih Lin, MDChino, CA 917101891884011
  2. Yu-Hsiang Lin, M.D.Woodland Hills, CA 913671821318312
  3. Zayar LinSan Francisco, CA 941221235875113
  4. Miguel Linares, MDSylmar, CA 913421710514948
  5. Richard Lind, M.D.Modesto, CA 953501063589331
  6. Roger Lind, M.D.Woodland Hills, CA 913641114090669
  7. James Lindberg, M.D.Irvine, CA 926041316048366
  8. Jane Lindberg, MDThousand Oaks, CA 913601467548149
  9. Brian Linde, MDStanford, CA 943051871868174
  10. Jean Linder, MDFresno, CA 937201962498428
  11. Deborah Lindes, M.D.San Francisco, CA 941091952323776
  12. Craig Lindquist, M.D., PH.D.San Rafael, CA 949011770658817
  13. Jane Lindsay, MDSan Rafael, CA 949031184770976
  14. Christopher LinebackMurrieta, CA 925631619027752
  15. Heather Linebarger, MDPalo Alto, CA 943011891802856
  16. Daniel Linfesty, M.D.Citrus Heights, CA 956101710325402
  17. Daniel Ling, M.D., M.B.A.West Hollywood, CA 900481285964577
  18. Evelyn Ling, MDStanford, CA 943051447599725
  19. Irving LingSan Francisco, CA 941431588124747
  20. Jie LingMillbrae, CA 940301003187766
  21. Joseph Ling, MDNewport Beach, CA 926631558894139
  22. Pamela Ling, MDSan Francisco, CA 941431871557827
  23. Stephen Ling, M.D.Mountain View, CA 940401841337045
  24. Teck Ling, MDPalo Alto, CA 943031578725792
  25. Santhi Lingamneni, MDSan Jose, CA 951281124084082
  26. Nat Linhardt, MDTarzana, CA 913561821174434
  27. Joseph Link, MDSacramento, CA 958231437292109
  28. Nay LinnModesto, CA 953551013329168
  29. Wutt Linn, M.D.Carmichael, CA 956081528401742
  30. Dag Peter Linna, M.D.Arcadia, CA 910061881742062
  31. Stuart Linne, M.D.Woodland, CA 956951245258144
  32. Carolyn Lintner, M.D.Redding, CA 960011558303008
  33. Dale Linton, MDLong Beach, CA 908071982653085
  34. Victoria Liokumovich, MDLoma Linda, CA 923541659585164
  35. Hsingming Liou, MDSan Francisco, CA 941101770678377
  36. Robert Liou, MDLong Beach, CA 908151316127624
  37. Arthur Lipper, M.D.Beverly Hills, CA 902111811062649
  38. Bennet Lipper, MDCamarillo, CA 930101235129420
  39. Nicol Lippman, M.D.San Pedro, CA 907311154363786
  40. Matthew Lippner, MDSunnyvale, CA 940861326381104
  41. Eric Lipsitt, MDOakland, CA 946111174601975
  42. Marla Lipsyc-Sharf, MDSanta Monica, CA 904041689105124
  43. Peter Lipton, MDPalm Desert, CA 922601861426819
  44. Johnny Liquete, MDMoreno Valley, CA 925531366438574
  45. Jose Lira, M.D.Chino, CA 917101821038985
  46. Neal Lischner, MDOakland, CA 946111962580456
  47. Michelle Liske, M.D.San Diego, CA 921171326366121
  48. Lee Liskey, MDSan Francisco, CA 941101609990993
  49. Leonard Liss, M.D.Visalia, CA 932921699842914
  50. Anne Little, M.D.Lompoc, CA 934361518073857

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.