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 301 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. Holly Steindel, MDLos Angeles, CA 900341386711273
  2. Julie Steiner, MDRichmond, CA 948011407815897
  3. Karen Steingart, MDSan Francisco, CA 941101740378090
  4. Sarah Steinkruger, M.D.Los Angeles, CA 900331225491194
  5. Mary Jean Stempien, M.D.San Francisco, CA 941271073734521
  6. William Stendardi, MDLa Jolla, CA 920371730542291
  7. Katelyn Stepanyan, M.D.Santa Monica, CA 904041316332349
  8. James Stephen, MDTracy, CA 953771144308032
  9. Robert Stephenson, M.D.Encinitas, CA 920241386642478
  10. Marilyn Steppe, MDWalnut Creek, CA 945961558411363
  11. Felicia Sterman, MD, MPHSan Francisco, CA 941141124103353
  12. Nicole Stern, M.D.Santa Barbara, CA 931101518009687
  13. Daniel Sterns, M.D.Laguna Hillsq, CA 926531083744643
  14. Linda Sterry, DOMission Hills, CA 913451629070198
  15. Ann Stevens, M.D.Orinda, CA 945631447278759
  16. Kenneth StevensSan Diego, CA 921031134569882
  17. Richard Stevens, M.D.San Francisco, CA 941431013028018
  18. Matthew Stevenson, M.D.Palo Alto, CA 943041669866620
  19. Maureen Stevenson, M.D.Walnut Creek, CA 945971245259589
  20. Anna Stewart, MDGlendale, CA 912061093822868
  21. Anne Stewart, M.D.San Diego, CA 921031578556197
  22. Cary Stewart, M.D.San Clemente, CA 926731184690901
  23. James Stewart, M.D.Alhambra, CA 918011689758294
  24. Jennifer Stewart, MDMendocino, CA 954601982749842
  25. Robert Stewart, M.D.Santa Rosa, CA 954031871592683
  26. Ryan Stewart, MDSan Diego, CA 921031376574749
  27. Shetal Stewart, M.D.Encinitas, CA 920241508201583
  28. Christina Stiles, M.D.South Pasadena, CA 910301750679908
  29. Mark Stilphen, MDSan Luis Obispo, CA 934011063630630
  30. Nicholas Stine, MDSan Francisco, CA 941071528296787
  31. Shelene Stine, MDSan Francisco, CA 941101750511994
  32. Timothy Stocker, M.D.Sacramento, CA 958171588858781
  33. Lloyd Stockey, MDOakland, CA 946111851479653
  34. Christopher Stoehr, MDSan Francisco, CA 941161457439085
  35. Daniel Stokes, MD, MSSanta Monica, CA 904041295312262
  36. Mark Stokols, M.D.Camarillo, CA 930121821155011
  37. Loren Stolle, M.D.San Francisco, CA 941091184649550
  38. Juliet Stoltey, M.D.San Francisco, CA 941431073651527
  39. Daniel Stone, MDBeverly Hills, CA 902111730210105
  40. Erin Stone, MDLos Angeles, CA 900271356499206
  41. Gregory Stone, MDLos Angeles, CA 900951215514955
  42. John Storch, MDNewport Beach, CA 926611275577975
  43. Dianne Storey, MDLos Altos, CA 940221740372259
  44. Jeffrey Stork, MDSan Diego, CA 921201659448512
  45. Casey Storms, MDFresno, CA 937011023373750
  46. Debra Stottlemyer, M.D.Loma Linda, CA 923541396767646
  47. John Stouffer, MDAnaheim, CA 928041275653321
  48. David Straface, MDCarmel, CA 939231922178847
  49. Cathy Straits, MDSanta Barbara, CA 931111801857156
  50. Kandice Strako, MDSan Francisco, CA 941151386722973

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.