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 278 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. Anne Schafer, M.D.San Francisco, CA 941431841431616
  2. Mark Schafer, MDTustin, CA 927801417948894
  3. Perry Schall, M.D.La Quinta, CA 922531497779219
  4. Rebecca Schane, MDMountain View, CA 940401306089891
  5. Ingrid Scharpf, M.DSan Diego, CA 921271255344982
  6. Brent Scharschmidt, M.D.Oakland, CA 946111174961775
  7. Ginger Schechter, M.D.Oxnard, CA 930361205859204
  8. Molly SchechterColton, CA 923241962261214
  9. Sergei Schegolev, M.D.Walnut Creek, CA 945971376683805
  10. Melvin Scheinman, M.D.San Francisco, CA 941431225087109
  11. Andrew Scheinok, MDLa Jolla, CA 920371760001242
  12. Thomas Schenk, M.D.Capistrano Beach, CA 926241245219104
  13. James Scheppach, M.D.Mission Viejo, CA 926911720065873
  14. Joanne Scherr, MDLos Angeles, CA 900271508925108
  15. Christopher Schiessl, M.D.Palm Springs, CA 922641053494997
  16. Lolly Schiffman, MDRichmond, CA 948011053496729
  17. Amy Schill-Depew, MDLoma Linda, CA 923501982817334
  18. George Schilling, M.D.Stockton, CA 952091518925239
  19. Dean Schillinger, MDSan Francisco, CA 941101164510327
  20. Robert Schingler, MDLos Osos, CA 934021821037615
  21. Stuart Schlisserman, MDPalo Alto, CA 943041215015540
  22. Stacy Schlocker, MDSan Diego, CA 921031548468598
  23. Dietrich Schlueter, MDSan Jose, CA 951281326543158
  24. Francesca Schlueter, MDLos Angeles, CA 900271316095276
  25. Lauren Schlussel, MDWest Hollywood, CA 900481871237297
  26. Heidi SchmidtPalo Alto, CA 943011851667513
  27. Nicholas Schmidt, MDLa Jolla, CA 920371316527435
  28. Daniel Schmitz, MDRedondo Beach, CA 902771538663323
  29. Jason Schnack, MDNorthridge, CA 913251366700650
  30. Jessica Schneider, M.D.Los Angeles, CA 900331902223332
  31. Lawrence Schneider, MDPanorama City, CA 914021174682827
  32. Margarita Schneider, MDSan Diego, CA 921201821299520
  33. Nicole Schneider, M.D.San Jose, CA 951241326239237
  34. Paul Schneider, M.D.Los Angeles, CA 900731194828970
  35. Matthew Schneiderman, MDPanorama City, CA 914021033286851
  36. Michelle Schneidermann, MDSan Francisco, CA 941101710994314
  37. Jeanette Schnierle, MD, MPHSan Diego, CA 921231740818038
  38. Paul Schnur, M.D.Chico, CA 959261487637559
  39. Roland Schoen, MDLafayette, CA 945491811260185
  40. Alan Schoengold, M.D.Poway, CA 920641760490171
  41. Laura Schoenherr, M.D.San Francisco, CA 941431619394772
  42. Lesslie Schofferman, M.D.San Francisco, CA 941091356415095
  43. Ronald Schott, M.D.Burbank, CA 915061609852029
  44. Matthew Schrader, D.O.Riverside, CA 925011962943142
  45. Michael Schrader, M.D. PH.DSan Francisco, CA 941091225140742
  46. Janet Schreiber, M.D.Anaheim, CA 928041831227669
  47. Steven Schroeder, MDSan Francisco, CA 941431346490828
  48. Erik Schten, M.D.Novato, CA 949471558461103
  49. Kevin Schulman, MDStanford, CA 943051073697959
  50. John Schulte, M.D.Redwood City, CA 940631255490074

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.