NPPES file of Aug 9, 2026

Adult Medicine Physician in California

386 NPPES records list adult medicine physician with a practice address in California, 1 per 100,000 residents, the 5th highest rate of 50. Los Angeles and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 6 of 8.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207QA0505X · 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, 21

  1. Los Angeles21
  2. San Francisco20
  3. Sacramento17
  4. San Diego13
  5. Santa Ana11

Adult Medicine Physician records in California

  1. Evelina OlsonHercules, CA 945471417615840
  2. Gurpreet Padam, M.D.San Mateo, CA 944011932125135
  3. Sarah Page, D.O.Santa Ana, CA 927051811332075
  4. Ga Yun ParkAnaheim, CA 928051891667549
  5. Raymond Park, D.O,Los Angeles, CA 900271174970560
  6. Mary Pascasio, MDThousand Oaks, CA 913601508037300
  7. Falguni Patel, FNPIrvine, CA 926041316752991
  8. Jagdish Patel, M.D.Tracy, CA 953761407897481
  9. Karan Patel, M.D.San Leandro, CA 945771538511399
  10. David Pepper, MDSan Francisco, CA 941101881776896
  11. Paul Perchonock, MDOakland, CA 946091700857919
  12. Ann J Peters, M.D.Gold River, CA 956701417252685
  13. Cecilia Pham, DOCosta Mesa, CA 926261962031294
  14. Manh Pham, M.D.Citrus Heights, CA 956101275854507
  15. Thaibinh Phan, M.D.Garden Grove, CA 928431891957718
  16. Johnny PhuSan Jose, CA 951191437682531
  17. Joseph Pierson, M.D.Inglewood, CA 903011457376790
  18. Juan Posada, M.D.San Francisco, CA 941101265496301
  19. Richard Powers, MDSebastopol, CA 954721154326601
  20. Krista Prewett, FNPAnaheim, CA 928061619513611
  21. Ceferino Quizon, M.DPort Hueneme, CA 930411326346966
  22. Lyn Raible, M.D.Modesto, CA 953501396813374
  23. Jaime Ramos, M.DLos Angeles, CA 900151487732327
  24. Kalpana Rao, M.D.Vallejo, CA 945891184651234
  25. Maxime Rappaport, MDMission Hills, CA 913451689378499
  26. Grant RichardsonPinole, CA 945641629643515
  27. Charles Rocamboli, D.O.Lancaster, CA 935341366639049
  28. Olga Roche, M.D.Susanville, CA 961271023215779
  29. Terri Rock, M.D.Santa Monica, CA 904041518901354
  30. Alvaro Rodriguez, M.D.Half Moon Bay, CA 940191497797559
  31. Barry Rosenblum, D.O.Van Nuys, CA 914051740361096
  32. Laura Rubio, D.O.San Diego, CA 921111447674221
  33. Jusel Ruelan, D.O.Fresno, CA 937011942644398
  34. Edgar Russell, D.O.Riverside, CA 925071790707156
  35. Victoria Ryan, MDCitrus Heights, CA 956211326579541
  36. Rajeev Sachdev, M.D.Napa, CA 945581245289289
  37. Adam Sacks, M.D.San Diego, CA 921211356757603
  38. Joel Samuels, MDSan Francisco, CA 941101225314487
  39. Leopoldo Sanchez, M.D.West Covina, CA 917901609838275
  40. Lawrence Sandberg, M.D.Riverside, CA 925071063845972
  41. Pacifico Santos, M.D.San Jose, CA 951161265547608
  42. Soquel Schafer, PA-CSan Luis Obispo, CA 934051215442991
  43. Doertlis Schultze-Allen, M.D.Walnut Creek, CA 945981386956969
  44. Neal Schwartz, D.O.Santa Ana, CA 927011164592127
  45. Lagina Scott, M.D.San Diego, CA 921151558897009
  46. Irina Seibert, RNBrentwood, CA 945131508559352
  47. James Sepiol, M.D.Stockton, CA 952031780857474
  48. Komola Shaban, MDClovis, CA 936111326495235
  49. Shabana Shah, MDPasadena, CA 911881962693309
  50. Marianna Shakhnovits, M.D.Pasadena, CA 911051568627222

Source: CMS NPPES, primary taxonomy 207QA0505X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 5 of 50 per resident

  1. Florida1.3
  2. Maine1.1
  3. New Mexico1.0
  4. California1.0
  5. Maryland1.0
  6. New York0.9
  7. 50 states and D.C.0.7

Source: CMS NPPES, primary taxonomy 207QA0505X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

69.4% of these records appear in a Medicare file, against 61.1% 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. California69.4%
  2. United States61.1%

Adult Medicine Physician records in California, measured

  • In a Medicare file268 of 386 · 69.4% here, 61.1% nationally
  • In the CMS Doctors and Clinicians file187 · 48.4% here, 40.9% nationally
  • Not updated in five years or more245 · 63.5% here, 60.8% nationally
  • Median graduation year2005 · the 187 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207QA0505X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

386 NPPES records list adult medicine physician (207QA0505X) as their primary taxonomy with a practice address in California: 1 per 100,000 residents against 0.7 nationally (50 states and D.C.). Los Angeles has 21 of them (5%).

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. Florida297
  2. New York171
  3. Texas164
  4. Pennsylvania77

States with a similar rate per 100,000

  1. New Mexico1.0
  2. Maryland1.0
  3. Puerto Rico0.9
  4. Hawaii0.8

The largest states

  1. Florida297
  2. New York171
  3. Texas164
  4. Pennsylvania77
  5. New Jersey73

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.