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 46 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. Julia Caton, M.D.Stanford, CA 943051538572672
  2. Chloe CattleSan Francisco, CA 941431568104727
  3. Michelle Caughey, MDSouth San Francisco, CA 940801861570475
  4. Noli Cava, M.D.San Diego, CA 921071265453435
  5. David Cavagnaro, M.D.Fresno, CA 937201700806783
  6. Adam Cavallero, M.D.Los Angeles, CA 913601902110513
  7. Paulette Cazares, M.D., MPHSan Diego, CA 921231710927470
  8. Lynette Cederquist, M.D.La Jolla, CA 920371568498095
  9. Susan Cederstrom, M.D.Newport Beach, CA 926601578529012
  10. Maria Ceja Rodriguez, MDTorrance, CA 905021043824030
  11. Gayle Cekada, M.DSan Luis Obispo, CA 934051114996055
  12. Andrea Censullo, M.D.West Hollywood, CA 900481720392889
  13. Sandra Cepin, MDChula Vista, CA 919101942887088
  14. Gerald Cera, M.D.Redwood City, CA 940611770800245
  15. Ethan Cermeno, MDSacramento, CA 958171538640776
  16. Jacqueline Cervantes, MDLos Angeles, CA 900331073073441
  17. Lissette Cervantes, M.D.Los Angeles, CA 900331598296311
  18. Marcelino Cervantes, MDHarbor City, CA 907101508914318
  19. Nicole Cervantes, M.D.Downey, CA 902411174985816
  20. Andrea Cervenka, MDSan Jose, CA 951281609841774
  21. Janina Cervera, MDLos Angeles, CA 900951699880666
  22. Corine Cesana, MDPalo Alto, CA 943041700958519
  23. Jose Cesena, MDSan Diego, CA 921201982752788
  24. Albert Cespedes, M.D.Torrance, CA 905091942527650
  25. David Cevallos, M.D.Santa Barbara, CA 931051871827766
  26. Beda ChaLos Angeles, CA 900951366079857
  27. Hsien-Hwa Cha, M.D.Stanford, CA 943051831431923
  28. Min Cha, M.D.Los Angeles, CA 900201700972403
  29. Yeji Cha, MDStockton, CA 952101316475452
  30. Steven Chacko, MDFountain Valley, CA 927081164171799
  31. Lavanya ChadalavadaLos Angeles, CA 900071043317704
  32. Arinder Chadha, MD, MBA, FACPLos Angeles, CA 900231467480137
  33. Vinky Chadha, MDBeverly Hills, CA 902111659335065
  34. Sarah Chae, MDRiverside, CA 925061003872169
  35. Gurveen Chahal, M.D.Walnut Creek, CA 945951780068775
  36. Nittly Chahal, M.D.San Diego, CA 921231164682480
  37. Rajinderpal ChahalVisalia, CA 932771013321496
  38. Supreet Chahal, MDMarina Del Rey, CA 902921104407816
  39. Hassan Chahine, MDDowney, CA 902401518326933
  40. Alex Chai, M.D.Los Angeles, CA 900171316035819
  41. Andrea Chai, MDOakland, CA 946111285175448
  42. Audrey Chai, MDPalo Alto, CA 943041649807835
  43. Lisa Chai, D.O.Sacramento, CA 958161659551182
  44. Michael Chai, M.D.Upland, CA 917861083748727
  45. Myra Chai, M.D.Los Angeles, CA 900171629457783
  46. Ron Chai, M.D.Downey, CA 902421447361316
  47. Fiona Chai-Tom, DORiverside, CA 925051174104848
  48. Patrick Chaipat, M.D.Laguna Hills, CA 926531942229141
  49. Wikrom Chaiwatcharayut, M.D.Ventura, CA 930041306259809
  50. Kathleen ChakPismo Beach, CA 934491356754659

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.