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 317 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. Dan Tran, MDIrvine, CA 926181508515040
  2. Dan Tran, M.D.King City, CA 939301518185305
  3. Danielle TranSacramento, CA 958171730838889
  4. David Tran, M.D.Upland, CA 917861881830784
  5. De Tran, MDStanford, CA 943051881762847
  6. Dean Tran, DOBellflower, CA 907061174672596
  7. Deanna Tran, MDBeverly Hills, CA 902111124778287
  8. Diana TranLos Angeles, CA 900481467195008
  9. Diem Tran, MDLos Angeles, CA 900271538236559
  10. Don Tran, M.D.San Jose, CA 951111881688950
  11. Duc Tran, MDBurbank, CA 915051740335199
  12. Dung Tran, MDYuba City, CA 959911871518217
  13. Eric Tran, DORiverside, CA 925211033748074
  14. Erica Tran, MDWest Hollywood, CA 900481932897014
  15. Felicia Tran, MDBuena Park, CA 906211225100753
  16. George TranLos Angeles, CA 900951730649146
  17. Giao Tran, MDMilpitas, CA 950351710064654
  18. Helen Tran, MDSylmar, CA 913421922637263
  19. Jessica Tran, MDStanford, CA 943051578192928
  20. John Tran, MDBakersfield, CA 933011992865182
  21. Jonathan TranSacramento, CA 958171821674367
  22. Justin Tran, MDMonterey Park, CA 917541760069207
  23. Kevin Tran, M.D.Downey, CA 902421598773467
  24. Khai Tran, MDFremont, CA 945381619052933
  25. Khanh Tran, MDSan Jose, CA 951111124093133
  26. Khoi Tran, MDLos Angeles, CA 900271871653063
  27. Kien Tran, MDTustin, CA 927801396831889
  28. Kiet Tran, MDLos Angeles, CA 900121285636209
  29. Kim-Huong Tran, MDLos Angeles, CA 900271699842559
  30. Ky Tran, M.D.Los Alamitos, CA 907201053313270
  31. Lawrence Tran, M.D.Fountain Valley, CA 927081467461061
  32. Lilian Tran, MDRancho Santa Margarita, CA 926881134190234
  33. Linda Tran, MD, MPHBerkeley, CA 947101316255094
  34. Loanne Tran, M.D., MPHArcadia, CA 910071043318173
  35. Loc Tran, DO, MHSAFresno, CA 937201245867829
  36. Loi Tran, DOFontana, CA 923351780744979
  37. Minh Tran, MDAnaheim, CA 928071083763346
  38. Minh Trang Tran, MDLa Habra, CA 906311841827409
  39. Minh-Chi Tran, M.D.Stanford, CA 943051033452768
  40. My Tran, MDBrawley, CA 922271235833906
  41. Nam TranMonterey Park, CA 917541184253205
  42. Namphuong Tran, M.D.Stanford, CA 943051598110686
  43. Nancy Tran, D.O.Huntington Beach, CA 926481962863993
  44. Nguyenvy Tran, D.O.Anaheim, CA 928011508217159
  45. Nhat Tran, M.D.Newport Beach, CA 926631033141486
  46. Nhon Tran, M.DWestminster, CA 926831821072877
  47. Patricia Tran, DOSan Diego, CA 921031235889221
  48. Patrick Tran, M.D.Fresno, CA 937211356401970
  49. Phuc Tran, DOOroville, CA 959661700313160
  50. Phuong Tran, MDRiverside, CA 925051366519183

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.