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 323 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. Nushrat Ullah, M.D.Novato, CA 949451205071222
  2. Monish UllalOakland, CA 946021710371315
  3. Michael Ullery, MDSacramento, CA 958251730167396
  4. Michael UlrichMoreno Valley, CA 925551598152183
  5. Ramsey Ulrich, M.D.Ventura, CA 930031215091293
  6. Lauren Ulsh, MDStanford, CA 943051003443060
  7. Brittney UlupinarSan Diego, CA 921301598225153
  8. Afshan Umair, MDPleasanton, CA 945881467524280
  9. Chukwuemeka Umeh, MDHemet, CA 925431285299800
  10. John Umekubo, MDSan Francisco, CA 941151093823858
  11. Vivian Umeozulu, M.D.Gardena, CA 902481598964967
  12. Mary Unanue, M.D.Beverly Hills, CA 902101295073468
  13. Scott Underwood, D.O.Oxnard, CA 930361043592678
  14. Amy Underwood-Jolly, M.D.Mission Viejo, CA 926911992783633
  15. Peck-Houy Ung, M.D.Paradise, CA 959691568491207
  16. Barry Unger, MDLos Angeles, CA 900691437198462
  17. Deborah Unger, MDTorrance, CA 905031679865240
  18. Richard Unger, MDOrinda, CA 945631942388079
  19. Shoshana Ungerleider, M.D.Walnut Creek, CA 945951518283787
  20. Alexander Ungewickell, M.D., PH.D.Palo Alto, CA 943041922288604
  21. John Uniat, MDFontana, CA 923351396816211
  22. Eleasa Unold, M.D.Sacramento, CA 958161205078276
  23. Axle Maria Rafaelle Untalan, MDParadise, CA 959691871225847
  24. Joanne Uomini, MDRichmond, CA 948011710015615
  25. Kirk Uomoto, MDLos Angeles, CA 900361578510426
  26. Devesh Upadhya, MDSanta Clarita, CA 913551568807014
  27. Anand Upadhyaya, MDLos Angeles, CA 900671740806561
  28. Kirtan Upadhyaya, MDOrange, CA 928681184327306
  29. Hartej Uppal, MDRocklin, CA 957651326084419
  30. Satnam Uppal, M.DMerced, CA 953481770704892
  31. Charnpreet Upple, MDBakersfield, CA 933131033627096
  32. Margaret Upson, MDSacramento, CA 958231790857514
  33. D Scott Upton, M.D.San Diego, CA 921231417994898
  34. Tracy UptonVisalia, CA 932911700271152
  35. Rossana Uranga, M.D.Alhambra, CA 918011366419640
  36. Gonzalo Urbano, M.D.Clovis, CA 936111366538340
  37. Raymond Urbanski, M.D.Calabasas, CA 913021609314335
  38. Katherine Urbina, DOSan Diego, CA 921031568090579
  39. Silvia Urbina Marengo, M.DSan Diego, CA 921131588930895
  40. Jonathan Urena, MDHalf Moon Bay, CA 940191538691589
  41. Daniel Uribe, MDLa Habra, CA 906311922049279
  42. Ana Uribe Wiechers, M.D.Long Beach, CA 908131295048320
  43. Jeffrey Urman, MDPalo Alto, CA 943031538246467
  44. Surekha Urva, MDPleasanton, CA 945881932287018
  45. Nudrat Usman, M.D.San Pedro, CA 907321144517327
  46. Romana Usman, M.D.Belmont, CA 940021538200852
  47. Petr Utrata, M.D.Castro Valley, CA 945461376624742
  48. Michelle Uttaburanont, M.D.Temecula, CA 925921528297918
  49. Leticia Uwedjojevwe, MDChula Vista, CA 919101891882221
  50. Mike Uyeki, MDLos Angeles, CA 900251154389518

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.