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 87 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. Charles Engelberg, M.DSf, CA 941091659616001
  2. David Engelhardt, M.D.Upland, CA 917861972595122
  3. Gabriele Engelhardt, M.D.Redondo Beach, CA 902771992810634
  4. James Engelman, M.D.Santa Cruz, CA 950651518963982
  5. Naruchon Engkatanakorn, M.D.Mission Hills, CA 913451073749792
  6. Justine Englanoff, MDLong Beach, CA 908221538807680
  7. Stephen Engle, M.D.Sherman Oaks, CA 914031437500014
  8. Todd Engstrom, MDCarpinteria, CA 930131538282587
  9. Rukmini Enjamuri, MDOxnard, CA 930301952823528
  10. Russell Enoch, D.O.Bakersfield, CA 933091811009525
  11. Louis Enrique, M.D.Antioch, CA 945311356363642
  12. Concepcion Enriquez, M.D.Long Beach, CA 908071093157596
  13. Anas Entabi, M.D.Palmdale, CA 935521669465258
  14. Tokameh Entezari, MDFountain Valley, CA 927081669599825
  15. Kee Eom, M.D.Murrieta, CA 925631790162402
  16. Sabitha Eppanapally, M.DBakersfield, CA 933111043449812
  17. Douglas Epperson, MDOakland, CA 946111689752453
  18. Barbara Epremian, M.D. , F.A.C.P.San Francisco, CA 941181437233657
  19. Lawrence Epstein, MDMountain View, CA 940401093817728
  20. Herbert Eradat, M.D., M.S.Los Angeles, CA 900951922143791
  21. Satish Eraly, M.D./PH.D.San Diego, CA 921031467482364
  22. Ghazaleh Erfanzadeh, MD.Canyon Country, CA 913871922398510
  23. Jessica EricksonSan Francisco, CA 941431275093221
  24. James Ericson, MDColton, CA 923241881731032
  25. Sandra Eriks, M.D.San Diego, CA 921011982766036
  26. David Erle, MDSan Francisco, CA 941101770599920
  27. Jesslyn Erlich, M.D.San Diego, CA 921031386874949
  28. Bruce Ermann, MDSacramento, CA 958251144433319
  29. Stanley Ermshar, MDAnaheim, CA 928071447308499
  30. John Ernsberger, M.D.Anaheim, CA 928041720330301
  31. David Ernst, M.D.Greenbrae, CA 949041720178411
  32. Thomas Erskine, M.D.Vacaville, CA 956871194732339
  33. Andrea Escala Perez-Reyes, MDDaly City, CA 940151174106744
  34. Andrew Escobar, MDSan Francisco, CA 941091285375238
  35. Jonathan Escobar, DOSan Diego, CA 921031093457129
  36. Juan Escobar, M.D.Los Angeles, CA 900261932324696
  37. Omar Escobedo, MDSacramento, CA 958171023772910
  38. Fatemeh Esfahani, M.D.Fresno, CA 937101902197569
  39. Pooneh Esfahani, DOFontana, CA 923351821146804
  40. Esfandiar Esfandiarifard, MDEncino, CA 914361063514479
  41. Jody Esguerra, MDMoreno Valley, CA 925551326738782
  42. Mark EsguerraLa Jolla, CA 920371477296879
  43. Robert EshbaughPasadena, CA 911051447703954
  44. Alan Eshleman, MDBerkeley, CA 947021932247087
  45. Rauz Eshraghi, M.D.Westlake Village, CA 913611619109378
  46. Sayeh Eshraghi, MDCalabasas, CA 913021750533345
  47. Reena Eshwar, MD CMD MSPHSanta Clara, CA 950511356517213
  48. Ziad Eskandar, MDPanorama City, CA 914021033286968
  49. Saeed Eskandari, M.D.Indio, CA 922011902092042
  50. Catherine Eskander, M.D.Roseville, CA 956611073756185

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.