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 35 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. Richard Bobis, M.D.Los Gatos, CA 950321407813843
  2. Humberto Boccardo, M.D.Laguna Hills, CA 926531689679458
  3. Richard Bock, M.D.Santa Ana, CA 927051699118216
  4. David Bockoff, M.D.Beverly Hills, CA 902111427204478
  5. Andrea Bocobo, DOSan Francisco, CA 941071083319537
  6. Noelle Boctor, M.D.Santa Monica, CA 904041447781968
  7. Samia Boctor, M.D.Northridge, CA 913301649467796
  8. Thomas Bodenheimer, MDSan Francisco, CA 941101588699110
  9. Suzanne Bodor-Billings, M.D.Berkeley, CA 947051356491724
  10. Vijay Kumar Bodukam, M.D.Sacramento, CA 958161780977595
  11. Nancy Boerner, M.D.Laguna Beach, CA 926511154416451
  12. Brandon Boesch, D.O.Oakland, CA 946021457663221
  13. Rae Boganey, MDSan Diego, CA 921201801944780
  14. Patricia Bogema, D.O.Corona, CA 928811407891617
  15. Salimah Boghani, M.DFairfield, CA 945331689711293
  16. Theresa Bohun, M.D.San Diego, CA 921031770677247
  17. Jonathan BoiarskyLos Angeles, CA 900951316524382
  18. Michelle Boisvert, MDSan Diego, CA 921551205465929
  19. Christine Bojanowski, MDLa Jolla, CA 920371679898506
  20. Rashida Bokhari, M.DSacramento, CA 958341568422418
  21. Payam BokhoorSanta Monica, CA 904041588074371
  22. Leila Bolandgray, M.D.La Mesa, CA 919421093931727
  23. Michael Bolaris, MDTorrance, CA 905021881898401
  24. Robert Boldy, M.D.Apple Valley, CA 923071063507382
  25. Ann Bolger, MDSan Francisco, CA 941101457395352
  26. David Bolivar, M.D.San Bernardino, CA 924101801830609
  27. Samuel Bolivar, MDLos Angeles, CA 900951942940697
  28. Samuel Bolivar, MDSan Bernardino, CA 924011144251067
  29. Vema Bolla, MDBakersfield, CA 933011699078220
  30. Jennifer Bollyky, M.D.Stanford, CA 943051497717748
  31. Sheila Bolour, MDBeverly Hills, CA 902111073662748
  32. Samaneh BolourchiOakland, CA 946021487393419
  33. Pejman Bolourian, MDLos Angeles, CA 900251114963360
  34. Kioumars Bolourian Kashi, MDTarzana, CA 913561851700132
  35. Sailaja Bommakanti, M.D.Campbell, CA 950081194828285
  36. Marco BonaccorsiFrench Camp, CA 952311811142177
  37. Jane Bonacich, MDRichmond, CA 948011699850362
  38. Pranay Bonagiri, DOSan Diego, CA 921031104403591
  39. Lawrence Bonaldi, M.D.San Jose, CA 951221851379796
  40. Patrick Bonaparte, M.D.Corona, CA 928821508260340
  41. Saniya BondeWest Hollywood, CA 900481841987245
  42. Caleb BondsRiverside, CA 925181649809112
  43. Antonio Bonet, MDTorrance, CA 905091134386956
  44. Aracely Bonilla Navarrete, MDSan Diego, CA 921031922208032
  45. Sara Bonilla-Larsen, MDElk Grove, CA 957581194352419
  46. Ernest Bonner, MDAlameda, CA 945011992785703
  47. Lorraine Bonner, M.D.Alameda, CA 945011033188149
  48. Jane Bontatibus, DOMoreno Valley, CA 925551336839356
  49. George Booker, MDLincoln, CA 956481558449132
  50. Steven Booker, M.D.Fresno, CA 937201508089285

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.