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 265 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. Lizette Rodriguez, MD, MSSacramento, CA 958171972150324
  2. Nelson Rodriguez, MDSelma, CA 936621134279946
  3. Neyshia Rodriguez, MDLos Angeles, CA 900341225592090
  4. Osvaldo Rodriguez, MDAnaheim, CA 928071720155682
  5. Ramon Rodriguez, MDBrawley, CA 922271326075292
  6. Rebecca Rodriguez, M.DCulver City, CA 902301407002777
  7. Romeo Rodriguez, M.D.San Bernardino, CA 924111336246685
  8. Scott Rodriguez, M.D.San Francisco, CA 941051770947863
  9. Gabriela Rodriguez MelgozaSimi Valley, CA 930651699263053
  10. Emilio Rodriguez Pena, MDLos Angeles, CA 900371760047054
  11. Rosalba Rodriguez-De La Sierra, M.D.San Diego, CA 921031770992588
  12. Zygy Roe-Zurz, MDPinole, CA 945641093440620
  13. Curtis Roebken, MDKentfield, CA 949041528042348
  14. Ginger Roehrig, MDSan Carlos, CA 940701720183833
  15. Steven Roey, MDMountain View, CA 940401982709093
  16. Mira Roganovic, M.D.Elk Grove, CA 957571033154448
  17. Alfonso Roger, MDPalm Desert, CA 922111699090639
  18. Adam Rogers, MDSan Francisco, CA 941431841452059
  19. Glenn Rogers, M.D.Willits, CA 954901821091133
  20. Hung Rogers, M.D.Sacramento, CA 958341528028834
  21. Janice Rogers, MDSacramento, CA 958231851463608
  22. Tomie Rogers, MDHarbor City, CA 907101508925173
  23. Justin Rogoski, MDSanta Monica, CA 904041770100794
  24. Karthik Rohatgi, MDSan Francisco, CA 941431659015949
  25. Nidhi Rohatgi, MDStanford, CA 943051215163894
  26. Upinder Rohewal, M.D.Modesto, CA 953501407051675
  27. Jason Rohrer, M.D.Vacaville, CA 956961013110634
  28. Alan Rojas, M.D.Los Angeles, CA 900331477808509
  29. Maria Rojas D'Croz, M.D.Berkeley, CA 947101659503290
  30. Lorena Rojas Gomez, MDSan Diego, CA 921011588248561
  31. Soleyman Rokhsar, MDLos Angeles, CA 900731710064365
  32. Saghi Rokhshadfar, MDMission Viejo, CA 926911376573253
  33. Michelle Roland, MDJackson, CA 956421649357179
  34. Anselmo Roldan, M.D.San Diego, CA 921541790898369
  35. Mark Rolfsen, MDEncinitas, CA 920241578053856
  36. Frederick Roll, MDSan Francisco, CA 941101659593648
  37. Lawrence RolleSanta Monica, CA 904041861074379
  38. Curtis Rollins, M.D., D.M.D.Santa Clara, CA 950501265548382
  39. Peter Roloff, M.D.San Diego, CA 921341679652101
  40. Juula Roman, M.DVentura, CA 930031619280633
  41. Maher Roman, MD, MBARiverside, CA 925061649362013
  42. Ricardo Roman, M.D.Eagle Rock, CA 900411144327032
  43. Erika Romanini, PACBakersfield, CA 933011811086481
  44. Carmela Romano, DORichmond, CA 948011952486615
  45. Patrick Romano, MD, MPHSacramento, CA 958171386625986
  46. Maria RomanovaLos Angeles, CA 900731922023795
  47. Erica Romblom, MDSanta Clarita, CA 913551659688216
  48. Mary-Barbara Romero, MDRoseville, CA 956611144308867
  49. Michael Romero, D.O.Los Angeles, CA 900331386936862
  50. Marylou Romo-Gritzewsky, M.D.Freedom, CA 950191790795730

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.