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 4 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. Chee Chow, MDOakland, CA 946111003994872
  2. Stratos Christianakis, M.D.Pasadena, CA 911051831114008
  3. Alvina Chu, M.D.Palo Alto, CA 943041538355375
  4. Michelle Chu, MDModesto, CA 953501285862573
  5. Stephanie Chu, MDSanta Clara, CA 950511598842452
  6. Alice ChuangSan Jose, CA 951281316333065
  7. Yanisa Chuenkasamekul, PA-CCovina, CA 917221184266678
  8. James Chung, MDSylmar, CA 913421588742415
  9. Lorinda Chung, MDPalo Alto, CA 943041427026442
  10. Sharon Chung, MDSan Francisco, CA 941431649393737
  11. Sue Chung, MD.Porter Ranch, CA 913261033396767
  12. Jeffrey Chwa, DOLong Beach, CA 908061285989236
  13. Philip Clements, MDLos Angeles, CA 900951811913924
  14. Henry Co, MDSan Jose, CA 951191699853267
  15. Alan Cohen, MDSan Diego, CA 921201326108598
  16. Keith Colburn, M.D.Loma Linda, CA 923541477570869
  17. Natasha Conley, D.O.San Diego, CA 921091639136344
  18. Dilrukshie Cooray, M.D.Torrance, CA 905021366548646
  19. Mary Corr, MDSan Diego, CA 921031255389417
  20. Megan Creasman, MDSan Francisco, CA 941431215565288
  21. Karla CrinerBurbank, CA 915051619321460
  22. Lindsey Criswell, MDSan Francisco, CA 941431881659290
  23. Michael Crone, D.ORoseville, CA 956611679009336
  24. Brent Culver, MDSanta Cruz, CA 950621023086410
  25. Gretel D'Souza, M.D.Sylmar, CA 913421679138531
  26. Tamara Dahhan, D.O.Sylmar, CA 913421093074627
  27. John Daly, M.D.San Diego, CA 921031831124502
  28. David Dang, M.D.Garden Grove, CA 928431932162385
  29. Neha Dang, MBBSRoseville, CA 956611962667204
  30. Jonathan Dau, M.D.Newport Beach, CA 926631467809608
  31. Riyasha Daulat, MDSan Diego, CA 921031851979074
  32. Joanna Davies, M.D.Los Angeles, CA 900171699746958
  33. John Davis, MD, MPHSan Francisco, CA 941431912962705
  34. Hooman Dehghan, MDVentura, CA 930031801109038
  35. Suzanne Delea, MDSanta Barbara, CA 931101841339868
  36. Kimberly Dequattro, MD, MMStanford, CA 943051295096873
  37. Sheetal Desai, MDOrange, CA 928681699966861
  38. Tejal DesaiVictorville, CA 923951619554136
  39. Roshan Dhawale, M.D.Santa Clara, CA 950511326234170
  40. Joshpaul Dhillon, MDLong Beach, CA 908061942706825
  41. Robinder Dhillon, M.D., M.B.A.Rancho Cordova, CA 956701841557477
  42. Shelley Dhillon, MDFresno, CA 937201588127930
  43. Michelle Di Fiore, M.D.Santa Cruz, CA 950651790171072
  44. William Dibrielle, MDSan Francisco, CA 941151043483837
  45. Deneen Dicarlo, MDSan Luis Obispo, CA 934051497847198
  46. Ara Dikranian, M.DSan Diego, CA 921081609962026
  47. Aileen Dillon, MB, BCHSan Francisco, CA 941151912071523
  48. Rashmi Dixit, M.D.Walnut Creek, CA 945981811990666
  49. James Dizmang, M.D.Travis Afb, CA 945351386004059
  50. Geoffrey Dolan, MDLong Beach, CA 908081811910847

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.