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 192 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. Cecelia Madrid, M.D.Burbank, CA 915051043363872
  2. Valeria Madrid Malo Bohorquez, M.D.Corona, CA 928791932582541
  3. Shalini Madugundi, M.DPittsburg, CA 945651154635506
  4. Philip Madvig, MDOakland, CA 946121639258775
  5. Benjamin Maeck, MDSan Francisco, CA 941171487720454
  6. Leo Maffey, M.D.Sylmar, CA 913421336342450
  7. John Mafi, M.D.Los Angeles, CA 900951063649465
  8. Ma. Danna Magallanes, MDFresno, CA 937011902035108
  9. Marcus Magallanes, MDBellflower, CA 907061265633143
  10. Marlowe Magallanes, M.D.San Jose, CA 951121346460847
  11. Elpidio Magalong, M.D.Alameda, CA 945011992773279
  12. Jennifer Magalong, D.O.Loma Linda, CA 923541982805578
  13. Bhavik MaganPasadena, CA 911071073195897
  14. Marisa Magana, M.D.San Diego, CA 921031194856286
  15. Daniel Magana Villalobos, MDSalinas, CA 939051205601457
  16. Anuradha Maganti, M.D.Oxnard, CA 930361871521088
  17. Maria Magat, MDSan Francisco, CA 941041821142688
  18. Richard Magbual, MDRiverside, CA 925051952459943
  19. Thomas Magee, MDLos Angeles, CA 900261619183662
  20. Justin Mager, M.D.Mill Valley, CA 949411669672739
  21. Tiffany Maggi-Maidinetti, MDSylmar, CA 913421962951277
  22. Rola Magid, M.D.Ventura, CA 930031790840726
  23. Safa Magid, MDOakland, CA 946111548598501
  24. Mai Magliocco, MDSan Francisco, CA 941151205102662
  25. Alix Magloire, M.D.Oakland, CA 946121770745093
  26. Ivan Magnaye, M.D.Loma Linda, CA 923541154554517
  27. Josephine Magnuson, M.D.Mountain View, CA 940401851426266
  28. Michael Magpile, M.D.La Mesa, CA 919411316988843
  29. Carlo Magtibay, MDDaly City, CA 940151063795623
  30. Renu Magu, M.D.Redding, CA 960011093992380
  31. Anna Maguire, MDOakland, CA 946111487898227
  32. Eliot Mah, MDSacramento, CA 958251982782660
  33. Jennifer Mah, MDBaldwin Park, CA 917061811316979
  34. Susan Mah, MDDaly City, CA 940151902984537
  35. Navid Mahabadi, DOValencia, CA 913551679193221
  36. Anish Mahajan, MDLos Angeles, CA 900341679621601
  37. Neha Mahajan, M.D.Los Angeles, CA 900891013278753
  38. Sumit Mahajan, MDYucca Valley, CA 922841659350916
  39. Kanwar Mahal, M.D.Fresno, CA 937201154455806
  40. Sirisha Mahankali, M.D.Paradise, CA 959691861426199
  41. Animesh Mahapatra, MDLong Beach, CA 908131588420269
  42. Saloni Maharaj, M.D.Stanford, CA 943051609294107
  43. Deenu MaharjanOakland, CA 946021497217475
  44. Suresh Mahawar, MDFremont, CA 945381033154893
  45. Suzan Mahdai, M.D.Chula Vista, CA 919101598015679
  46. Hessam Mahdavi, MDRancho Mirage, CA 922701851393300
  47. Shahnoos Mahdavi, M.D.Irvine, CA 926181013163294
  48. Haleh Mahdavieh, MDSan Diego, CA 921281811173966
  49. Hovsep Mahdessian, MDPalmdale, CA 935501659544203
  50. Ali MahdiRiverside, CA 925051285262204

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.