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 311 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. Donald Tecca, MDSan Diego, CA 921111235163163
  2. Jose-Marc TechnerSanta Clara, CA 950511154889863
  3. Michael Tedaldi, M.D.Orange, CA 928681992169957
  4. Grace Tee, M.DSan Jose, CA 951161689691461
  5. Nora Tee, M.DAlhambra, CA 918031003835679
  6. Silvia Tee, M.D.Palo Alto, CA 943041356529473
  7. Byron Teegarden, MDSan Diego, CA 921201255489167
  8. John Teerlink, M.D.San Francisco, CA 941211851309975
  9. Stanley Teeten, MDBakersfield, CA 933011609943521
  10. Fatima Tehranchi, M.DAtherton, CA 940271366457293
  11. Michael Tehrani, M.D.Long Beach, CA 908041427320704
  12. Payam Tehrani, M.D.Los Angeles, CA 900641144511338
  13. Rouzbeh Tehrani, MDSan Diego, CA 921301346462223
  14. Ronald Tejada, MDLakewood, CA 908051407165079
  15. Rigoberto Tejeda Acevedo, M.D.Riverside, CA 925031306469739
  16. Rotana Tek, D.O.Pasadena, CA 911051952665036
  17. Amalio Telenti, MDLa Jolla, CA 920371770119000
  18. James Telfer, M.D.Scotts Valley, CA 950661831142223
  19. David Tellalian, MDLos Angeles, CA 900481003073826
  20. William Tellman, MDMeadow Vista, CA 957221164685376
  21. Daniel Temianka, M.D.Torrance, CA 905021598721177
  22. Michael Temkin, D.O.San Ramon, CA 945831194787929
  23. Adam Tempchin, MDLos Angeles, CA 900891558063974
  24. Margaret Tempero, MDSan Francisco, CA 941151225095730
  25. Corsini Templado, M.D.Redding, CA 960021033195821
  26. Bliss Temple, MDSan Francisco, CA 941021205126695
  27. John Tencati, MDNewport Beach, CA 926631659458743
  28. Michael TencatiCorona Del Mar, CA 926251013546605
  29. Chia-Yu Teng, M.D.City Of Industry, CA 917481902839160
  30. David Teng, MDLaguna Hills, CA 926531720782097
  31. Deeling Teng, MDFountain Valley, CA 927081578576815
  32. Jenny Teng, MDBaldwin Park, CA 917061316062821
  33. Joseph Teng, DOSan Leandro, CA 945771619596897
  34. Shine Nee Teng, MDBerkeley, CA 947051689747990
  35. Forest Tennant, MDWest Covina, CA 917901720278252
  36. Richard Tennant, MDSylmar, CA 913421134355126
  37. Eric Tennyson, DOWoodland Hills, CA 913671922156975
  38. Jo-Anne Teoh, MDWoodland Hills, CA 913671851449664
  39. Irene Teper, M.D.Mill Valley, CA 949411073584520
  40. Guy Teran, M.D.Ukiah, CA 954821013992452
  41. Hiroshi Terashima, M.D.Oakland, CA 946091508974924
  42. Connie Teresi, M.D.Livermore, CA 945501922024108
  43. Vivian Terkel, M.D.San Diego, CA 921301992802631
  44. Robert Terkeltaub, M.D.San Diego, CA 921031841258050
  45. David Terman, M.D.Pebble Beach, CA 939531598979577
  46. Martin Terplan, MDSan Francisco, CA 941021194877183
  47. Reno Terribilini, M.D.Burbank, CA 915051821402033
  48. Erik Terriquez, MDFolsom, CA 956301760184972
  49. Garo Terzian, MDBurbank, CA 915021700952090
  50. Heywan TesfayeLos Angeles, CA 900951134660491

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.