NPPES file of Aug 9, 2026

Family Medicine Physician in California

17,133 NPPES records list family medicine physician with a practice address in California, 44 per 100,000 residents, the 34th highest rate of 51. Los Angeles and San Diego have the most; each record links to the provider's NPI and the California license search. Page 32 of 343.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207Q00000X · 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, 829

  1. Los Angeles829
  2. San Diego780
  3. San Francisco491
  4. Sacramento473
  5. San Jose265

Family Medicine Physician records in California

  1. Tafor Bonu Mochungong, MDOakland, CA 946111356804884
  2. Thomas Boo, MDBishop, CA 935141255664124
  3. John Booker, M.D.Visalia, CA 932911790769768
  4. Teri Boon, M.D.Yucaipa, CA 923991114962792
  5. Robert Boonyaputthikul, D.O.Whittier, CA 906031700198801
  6. Aaron Boor, D.O.Aliso Viejo, CA 926561598727216
  7. Caroline Boorman, DOColton, CA 923241467622373
  8. Kathleen Boos, MDNewport Beach, CA 926631316983448
  9. Jason Booth, MDFairfield, CA 945341215236443
  10. Sharon Booth, MDFresno, CA 937261245224849
  11. Jennifer Boozer, DOGlendale, CA 912081417067299
  12. Gurpreet Boparai, M.D.San Ramon, CA 945831275732091
  13. Rajni Boparai, M.D.Huntington Beach, CA 926471578945663
  14. Amruti Borad, D.O.San Diego, CA 921031598058323
  15. Shariar Borbor, M.D.Azusa, CA 917021477868933
  16. Julio Bordas, M.D.Downey, CA 902421295834927
  17. Nikhil Bordia, MDVentura, CA 930031780099549
  18. David Borecky, M.D.Escondido, CA 920251679591705
  19. Nicole Bores, M.D.San Francisco, CA 941151043512742
  20. Gabriel Borges, D.O.Mather, CA 956551104809110
  21. Alison Borgsmiller, ALISONSan Luis Obispo, CA 934011558921775
  22. Daniel Borgstadt, M.D.Clovis, CA 936121457332330
  23. Fernando Boria Gonzalez, MDRohnert Park, CA 949281811556418
  24. Deborah Borne, MDSan Francisco, CA 941021598892580
  25. Tatyana Borodulin, M.D.Campbell, CA 950081912940628
  26. Kristian Borofka, DOElk Grove, CA 957581689165276
  27. Marielle Borom, DOIrvine, CA 926171700413531
  28. Brian Borsook, M.D.Torrance, CA 905011437165370
  29. Samuel Bosch, MD, MPHOakland, CA 946011598440091
  30. Heba Boshra, M.D.Fontana, CA 923351942575022
  31. Zakaria BoshraNorwalk, CA 906501811094832
  32. Christopher Bositis, MDSan Francisco, CA 941101427054493
  33. Allan Bosko, M.D.Santa Barbara, CA 931101659486017
  34. Karen Boston, M.D.Los Angeles, CA 900151699035048
  35. Keith Boston, M.D.Placerville, CA 956671609953256
  36. Jeffrey Bosworth, MDRedding, CA 960011407840895
  37. Richard Botto, MDSouth Lake Tahoe, CA 961501861499709
  38. Leila Boubshait, M.D.Merced, CA 953481215298054
  39. Brian Bouch, M.D.Petaluma, CA 949521750472213
  40. Daniel Boucher, MDClearlake, CA 954221164115549
  41. Richard Boucher, M.D.Fullerton, CA 928341942378666
  42. Todd Bouchier, MDGrass Valley, CA 959451316132442
  43. Jamie Boudreau, M.D.Martinez, CA 945531942450499
  44. Singh Boun, MDMonterey Park, CA 917541801855028
  45. Erin Bouquin, MDTempleton, CA 934651134309958
  46. Amy Bourassa, M.D.Campbell, CA 950081871736959
  47. Charlotte Bourdillon, MDVentura, CA 930031972163889
  48. Ryan Bourgette, MDSan Diego, CA 921091629489257
  49. Margaret Bourne, MDPoint Reyes, CA 949561043386535
  50. Robert Bourne, M.D.Redlands, CA 923741417985847

Source: CMS NPPES, primary taxonomy 207Q00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 34 of 51 per resident

  1. Virginia48
  2. Ohio48
  3. North Carolina46
  4. California44
  5. Kentucky43
  6. Rhode Island43
  7. 50 states and D.C.46

Source: CMS NPPES, primary taxonomy 207Q00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

80.5% of these records appear in a Medicare file, against 78.5% 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. California80.5%
  2. United States78.5%

Family Medicine Physician records in California, measured

  • In a Medicare file13,796 of 17,133 · 80.5% here, 78.5% nationally
  • In the CMS Doctors and Clinicians file10,657 · 62.2% here, 61.5% nationally
  • Not updated in five years or more9,975 · 58.2% here, 55.6% nationally
  • Median graduation year2005 · the 10,652 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207Q00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

17,133 NPPES records list family medicine physician (207Q00000X) as their primary taxonomy with a practice address in California: 44 per 100,000 residents against 46 nationally (50 states and D.C.). Los Angeles has 829 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. Texas11,119
  2. Florida9,399
  3. Pennsylvania7,483
  4. New York6,417

States with a similar rate per 100,000

  1. Kentucky43.5
  2. Rhode Island43.3
  3. North Carolina45.7
  4. Arizona42.0

The largest states

  1. Texas11,119
  2. Florida9,399
  3. Pennsylvania7,483
  4. New York6,417
  5. Illinois6,215

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.