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 121 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. Yahya Hedvat, M.D.Encino, CA 913161306830021
  2. Todd Hee, M.D.Pasadena, CA 911051689648693
  3. Shainy Hegde, M.D.Roseville, CA 956611346412533
  4. Margaret Hegg, MDWalnut Creek, CA 945961942388012
  5. Douglas Hegstad, M.D.Moreno Valley, CA 925551649204009
  6. Sheda Heidarian, M.D.Rancho Mirage, CA 922701639340102
  7. Susan Heifetz, MDVista, CA 920831831289297
  8. Marc Heikens, M.D.San Diego, CA 921281871892331
  9. Jackson Heilbronn, DOMoreno Valley, CA 925551811550072
  10. Darryl Hein, M.D.Los Gatos, CA 950321124077227
  11. Stacey Hein, INTERNAL MEDICINELos Gatos, CA 950321568429983
  12. Paul Heineken, M.D.San Francisco, CA 941211801810817
  13. Gregory Heinicke, D.O.Sacramento, CA 958171295267987
  14. Barbara Heinrich, MDFremont, CA 945381184709842
  15. Gerhard Heinrich, M.D.Martinez, CA 945531306828728
  16. Emil Heinze, MDSylmar, CA 913421720175052
  17. Amy Heinzerling, MD, MPHSan Francisco, CA 941431811382831
  18. Andrew Heisel, M.D.San Diego, CA 921231720436447
  19. Sonya Heitmann, M.D.Sacramento, CA 958171689801722
  20. Neema HeivandThousand Oaks, CA 913601952667040
  21. Elan Hekier, M.D.San Diego, CA 921231225092463
  22. Avetis Hekimian, M.D.Los Angeles, CA 900271477998375
  23. Maryam Hekmat, M.D.San Diego, CA 921281497867428
  24. Razi Hekmat, M.D.National City, CA 919501871501205
  25. Soheil Hekmat, MDInglewood, CA 903011043358369
  26. Claire Helbig, MDSanta Cruz, CA 950601467667147
  27. Richard Helfant, MDPalos Verdes Estates, CA 902741033098603
  28. Anna Helgeson, MDSan Diego, CA 921341194826628
  29. David Heller, M.D.San Diego, CA 921301639274251
  30. Mark Heller, M.D.Sacramento, CA 958171396939237
  31. Meredith Heller, M.D.San Francisco, CA 941151073562096
  32. Robert Heller, M.D.Venice, CA 902911295946804
  33. Susan Heller, M.D.Rosemead, CA 917701720251929
  34. Cambria Hembree, MDFountain Valley, CA 927081356542229
  35. Seyed Hamid Hemmati, MDLa Quinta, CA 922531851955538
  36. Grant HendersonStanford, CA 943051447592159
  37. Mark Henderson, M.D.Sacramento, CA 958171184895856
  38. Philip HendersonSan Diego, CA 921031447678834
  39. Thomas Hendon, M.D.Long Beach, CA 908151093745853
  40. Mark Hendricks, M.D.San Diego, CA 921081164409983
  41. Ming Heng, M.D.Oxnard, CA 930361780638460
  42. Amelia Henninger, MDColton, CA 923241932634805
  43. Donald Hennings, MDWoodland Hills, CA 913671932268539
  44. Heather Henri, M.D.Stanford, CA 943051912058033
  45. Aneel Henry, MDSan Diego, CA 921201639661564
  46. Brian HenryLaguna Hills, CA 926531629047824
  47. Eve Henry, M.D.Menlo Park, CA 940251518270743
  48. Joseph Henry, M.D.Walnut Creek, CA 945981003139445
  49. Kurt Henry, M.D.San Diego, CA 921081073574380
  50. Stephen Henry, M.D.Sacramento, CA 958171457478059

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.