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 5 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. Loomee Doo, MDRedlands, CA 923731548622434
  2. Robin Dore, MDTustin, CA 927801619972510
  3. Dipti Doshi, MDCerritos, CA 907031053325761
  4. Christina Downey, M.D.Loma Linda, CA 923541558625285
  5. Bruce Dreyfuss, M.D.San Jose, CA 951121558366047
  6. Catherine Driver, M.D.Mission Viejo, CA 926911356469266
  7. Tracy DriverHuntington Beach, CA 926461982048112
  8. Michael Duffin, M.D.Torrance, CA 905031578587309
  9. Glenn Ehresmann, M.D.Los Angeles, CA 900331043248727
  10. Barry Eibschutz, M.D.San Luis Obispo, CA 934051164464566
  11. Christine Elias, M.D.Fremont, CA 945381972732600
  12. Amy Elliott, MDLos Altos, CA 940221124243092
  13. Bett Eng, M.D.Torrance, CA 905051861408742
  14. Suzanne Enloe-Whitaker, DOSan Bernardino, CA 924041720058415
  15. Christine Evelyn, M.D.Los Angeles, CA 900891538338116
  16. Michael Fabricant, M.D.Fullerton, CA 928351790771616
  17. Sara Faghihi Kashani, MDSan Francisco, CA 941431720579857
  18. Mary FainstatLos Gatos, CA 950321487847901
  19. Robert Fairchild, M.D., PH.D.Palo Alto, CA 943041255607214
  20. Meika Fang, MDLos Angeles, CA 900951801821095
  21. Samy Farag, MDLos Angeles, CA 900271518932474
  22. Nazee Farsi, MDLaguna Woods, CA 926371386826881
  23. Gita Fatemi, M.D.Camarillo, CA 930101154601524
  24. Paul Feigenbaum, MDOakland, CA 946121710063243
  25. Howard Feinberg, DOVallejo, CA 945921194747196
  26. Ashley Feldkamp, MDSacramento, CA 958171083364343
  27. Gary Feldman, MDLos Angeles, CA 900451841220373
  28. Zachary Fellows, M.D.Carlsbad, CA 920111154733152
  29. Helen Feng, MDSan Jose, CA 951241629174149
  30. Christine Fernando, MDCarmichael, CA 956081962580605
  31. Albert Ferrari, MDStockton, CA 952091992729313
  32. Walford Fessel, MDSan Francisco, CA 941151649344961
  33. Barbara Finck, M.D.San Francisco, CA 941181538307657
  34. John Finley, DOChino, CA 917101922042076
  35. Catherine Finney, M.D.Valencia, CA 913551922263474
  36. Nazanin Firooz, M.D.Woodland Hills, CA 913641447437967
  37. David Fischer, MDPalo Alto, CA 943011164524229
  38. Herbert Fisher, M.D.Burlingame, CA 940101194829127
  39. John Fitzgerald, MDLos Angeles, CA 900951841215027
  40. Jeffrey Fong, MDSan Francisco, CA 941151093893695
  41. Lindsy Forbess, MDLos Angeles, CA 900481972764116
  42. Solomon Forouzesh, M.D.Culver City, CA 902321457548133
  43. Zuzana Foster, M.D.Walnut Creek, CA 945981184621542
  44. Elizabeth Frame, M.D.West Hollywood, CA 900481912094434
  45. Al Franco, M.D.Riverside, CA 925051528128535
  46. Jourdan FrankovichSan Diego, CA 921031750874442
  47. Robert Freed, MDIrvine, CA 926181316026784
  48. Brigid Freyne, M.D.Murrieta, CA 925631689640856
  49. James Fries, M.D.Palo Alto, CA 943041922140367
  50. Zdenka Fronek, M.D.San Diego, CA 921211215947379

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.