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 213 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. Kelly Morris, D.O.Oakland, CA 946021356783260
  2. Michael Morris, MDMission Viejo, CA 926911992815617
  3. Sheri Morris, MDLivermore, CA 945511588742647
  4. Allan Morrison, M.D.Culver City, CA 902301144244245
  5. Janina Morrison, M.D.Los Angeles, CA 900121326298274
  6. Jonathan Morse, M.D.Santa Rosa, CA 954031265461784
  7. Mojgan Morshedi, MDLos Gatos, CA 950321316090640
  8. Kasra Morshedizadeh, M.D.Orange, CA 928681528078672
  9. Badeia Morsy, MDPleasanton, CA 945881245347608
  10. Parisa Mortaji, MDLaguna Niguel, CA 926771083174841
  11. Laurie Mortara, MDLong Beach, CA 908151932216124
  12. Amir Hossein Mortazavientesab, M.D.Palm Desert, CA 922111073052791
  13. Mina Mortezai, D.O.West Hills, CA 913041770547325
  14. Maryam Mortezaiefard, D.O.West Hills, CA 913041285653196
  15. Adam Mortimer, DOOakland, CA 946021063033116
  16. Emma Morton-Bours, M.D.Portola Valley, CA 940281316003528
  17. Tina Mosaferi, MDLos Angeles, CA 900731811350606
  18. Melissa Moseberry, MDLos Angeles, CA 900441114928504
  19. Luke Moselle, MDSan Luis Obispo, CA 934051457915258
  20. Kerry Moseman, MDLong Beach, CA 908131225597008
  21. Zab Mosenifar, M.D.Los Angeles, CA 900481780611129
  22. Austin Moser, M.D.Santa Barbara, CA 931051447997192
  23. Charles Moser, PH.D., M.D.San Francisco, CA 941141083615983
  24. Bates Moses, MDFontana, CA 923351518015437
  25. Devadas Moses, MD, FACP, DR.PH.Beaumont, CA 922231023177607
  26. Behzad Mosharafian, M.D.Camarillo, CA 930121255318424
  27. Corinna Mosher, M.D.Thousand Oaks, CA 913601992801716
  28. Thomas Mosher, M.D.San Diego, CA 921231437169554
  29. Narsis Moshfeghi, MDWest Hills, CA 913071699812883
  30. Kourosh Moshiri, M.DRancho Mirage, CA 922701821306994
  31. Khashayar Moshtahedian, MDTemecula, CA 925921891481990
  32. David Moskowitz, MDAgoura Hills, CA 913011891809380
  33. David Moskowitz, MDOakland, CA 946021063585503
  34. Richard Moskowitz, MDDaly City, CA 940151124102868
  35. Joan Moss, MDIrvine, CA 926021053330860
  36. Yael Moss, D.O.San Jose, CA 951281336373976
  37. Maia MosseWoodside, CA 940621154940187
  38. Lindsay Mossinger, M.D.Los Alamitos, CA 907201952644197
  39. James Mosson, M.D.Sonora, CA 953701437135670
  40. Mark Mosson, M.D.San Diego, CA 921031174765549
  41. Said Mostafavi, M.D.,Los Angeles, CA 900671639163744
  42. Mariam Mostamand, M.D.La Mesa, CA 919421942739248
  43. Keka Mostofa, M.D.Folsom, CA 956301740591650
  44. Khosrow Mostofi, M.D.Bakersfield, CA 933111457610842
  45. Michael Mostyn, M.D.Palm Desert, CA 922601235166059
  46. Jean-Paul Motamedi, DOHayward, CA 945451831277698
  47. Julia Motherway, M.D.Tustin, CA 927801962544494
  48. Kimberly Motta, M.D.Fountain Valley, CA 927081770672123
  49. Kavitha Moturi, MDSan Jose, CA 951191174695928
  50. Srilakshmi Moturu, MDAnaheim, CA 928071750439790

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.