NPPES file of Aug 9, 2026

Rheumatology Physician in California

926 NPPES records list rheumatology physician with a practice address in California, 2.4 per 100,000 residents, the 20th 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 15 of 19.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RR0500X · 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, 93

  1. Los Angeles93
  2. San Francisco64
  3. San Diego42
  4. Sacramento27
  5. Stanford25

Rheumatology Physician records in California

  1. Mark Roberts, MDVallejo, CA 945891790864585
  2. William Robinson, M.D.Stanford, CA 943051417975491
  3. Alicia Rodriguez-Pla, MD, PHD, MPHFresno, CA 937201083050025
  4. Thomas Romano, M.D.Los Angeles, CA 900331023031184
  5. Raul Romea, MDWalnut Creek, CA 945971962408112
  6. Jerry Rosenbaum, M.DSan Rafael, CA 949011700907896
  7. Gilbert Ross, MDBurbank, CA 915051952362915
  8. Andrew Rozelle, MDStanford, CA 943051548326606
  9. Elyse Rubenstein, MDSanta Monica, CA 904041508895095
  10. Alexander Ruggieri, M.D.Los Angeles, CA 900151780028209
  11. Pedro Ruiz, M.D., PH.D.San Francisco, CA 941151023204468
  12. Iraj Sabahi, M.D.Turlock, CA 953821881886042
  13. Saru Sachdeva, M.D.Ontario, CA 917641841470630
  14. Ebrahim Sadeghi Najafabadi, M.D.Upland, CA 917861205156866
  15. Sahdev Saharan, M.D.Tracy, CA 953761588875512
  16. Faye Sajjadi, MDSacramento, CA 958171992234561
  17. Farah Salahuddin, MDWatsonville, CA 950761518192632
  18. Harbrinder Sandhu, M.D.Folsom, CA 956301902080625
  19. Harchetan Sandhu, M.D.Chico, CA 959261740243328
  20. Vaneet Sandhu, M.D.Loma Linda, CA 923541134362163
  21. Jeff Sarkozi, M.D.Santa Ana, CA 927051699812388
  22. Stavros Savvas, M.D.Los Angeles, CA 900331760753479
  23. Janahn Scalapino, MDSacramento, CA 958161730286808
  24. Kate Scannell, MDOakland, CA 946111508902107
  25. Daphne Scaramangas-Plumley, MDBeverly Hills, CA 902111073878229
  26. Alan Schenk, M.D.Laguna Woods, CA 926371265426183
  27. Gabriela Schmajuk, M.D.San Francisco, CA 941211144416892
  28. Melissa Schoenwetter, D.O.Vacaville, CA 956871699844019
  29. Stacey Schulman, M.D.La Jolla, CA 920371861458911
  30. Paul Schunke, M.D.Modesto, CA 953551124050430
  31. Nina Schwartz, M.D.San Francisco, CA 941431073625570
  32. Frank Scott, D.O.Nipomo, CA 934441295877207
  33. William Seaman, M,D,San Francisco, CA 941211679689418
  34. Stuart Segal, M.D.Santa Barbara, CA 931101508879354
  35. Gurkirpal Sehgal, MDWoodside, CA 940621922484807
  36. Eric Seronick, D.O.Santa Cruz, CA 950621659802346
  37. Richard SetoMountain View, CA 940401720529167
  38. Katy Setoodeh, M.D.Santa Monica, CA 904041053529990
  39. Seyedehsara Seyedali, MDWhittier, CA 906021336554328
  40. Dinesh Shah, MDLos Angeles, CA 900271164599080
  41. Neha Shah, M.D.Stanford, CA 943051144227182
  42. Karen Shainsky, D.O.West Hollywood, CA 900481740409283
  43. Rania Shammas, M.D.Burbank, CA 915051194959338
  44. Bob Shapiro, M.D.Sacramento, CA 958251316004518
  45. Ena Sharma, M.D.Arroyo Grande, CA 934201235577941
  46. Naini Sharma, MDFremont, CA 945391659602027
  47. Vandana Sharma, M.D.Walnut Creek, CA 945971528131588
  48. Nishitha Shekhar, DOOrange, CA 928681326671959
  49. Lin Shen, M.D., PH.D.San Francisco, CA 941431518266006
  50. Angelica Shepard, MDOxnard, CA 930361447546684

Source: CMS NPPES, primary taxonomy 207RR0500X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 20 of 51 per resident

  1. Missouri2.4
  2. Oregon2.4
  3. South Carolina2.4
  4. California2.4
  5. Nebraska2.3
  6. New Mexico2.3
  7. 50 states and D.C.2.4

Source: CMS NPPES, primary taxonomy 207RR0500X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

81.3% of these records appear in a Medicare file, against 81.6% 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. California81.3%
  2. United States81.6%

Rheumatology Physician records in California, measured

  • In a Medicare file753 of 926 · 81.3% here, 81.6% nationally
  • In the CMS Doctors and Clinicians file643 · 69.4% here, 69.5% nationally
  • Not updated in five years or more571 · 61.7% here, 56.6% nationally
  • Median graduation year2003 · the 641 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RR0500X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

926 NPPES records list rheumatology physician (207RR0500X) as their primary taxonomy with a practice address in California: 2.4 per 100,000 residents against 2.4 nationally (50 states and D.C.). Los Angeles has 93 of them (10%).

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 York599
  2. Texas545
  3. Florida494
  4. Pennsylvania413

States with a similar rate per 100,000

  1. South Carolina2.4
  2. Oregon2.4
  3. Nebraska2.3
  4. New Mexico2.3

The largest states

  1. New York599
  2. Texas545
  3. Florida494
  4. Pennsylvania413
  5. Massachusetts343

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.