NPPES file of Aug 9, 2026

Emergency Medicine Physician in California

7,751 NPPES records list emergency medicine physician with a practice address in California, 20 per 100,000 residents, the 28th 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 19 of 156.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207P00000X · 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, 632

  1. Los Angeles632
  2. San Diego496
  3. Sacramento369
  4. San Francisco289
  5. Oakland247

Emergency Medicine Physician records in California

  1. Philip BussStanford, CA 943051700211802
  2. Ronald Buss, M.DPalm Springs, CA 922621114960283
  3. Galen Bussmann, MD, MBASan Francisco, CA 941431306541578
  4. Brent Butcher, MDLa Mesa, CA 919421861413700
  5. Patrick Butcher, M.D.Manhattan Beach, CA 902661972732873
  6. Donald Butera, MDLa Mesa, CA 919421699783233
  7. Ian Butler, D.O.Needles, CA 923631376807354
  8. Jeffrey Butler, DOBakersfield, CA 933011619908175
  9. Ian Butler-Hall, MDLoma Linda, CA 923541356460711
  10. William Buys, DOTempleton, CA 934651639127376
  11. Elizabeth Byrd, DOLoma Linda, CA 923501720660020
  12. Kelsey Byrd, DOSan Diego, CA 921231194302497
  13. Michael Abraham Cabebe, DOTurlock, CA 953821679160147
  14. Kirsten Cable, DOPalm Springs, CA 922621639812647
  15. Anthony Cabrera, DOUpland, CA 917861114161007
  16. Kevin Cabrera, DOSan Diego, CA 921111396464301
  17. Max Caccese, M.D.San Diego, CA 921031922534494
  18. Liza Cadnapaphornchai, MDHayward, CA 945451982828596
  19. Jessica Cadogan, M.D.Roseville, CA 956611720241375
  20. Trevor Cadogan, MDSacramento, CA 958231235217993
  21. Stephen Cady, MDSan Pablo, CA 948061689615254
  22. Sarah Cain, MDBaldwin Park, CA 917061891284873
  23. William Cain, M.D.Paso Robles, CA 934461033301262
  24. Loren Caira, M.D.West Hills, CA 913071063459469
  25. Kirsten Calder, MDLos Alamitos, CA 907201952330938
  26. Vanessa Calderon, MDSan Leandro, CA 945781275854820
  27. Jonathan Caldwell, M.D.Fresno, CA 937201134160674
  28. Sara Caldwell, M.D.Fresno, CA 937011972731990
  29. Sheik Cale, DOFresno, CA 937201235201062
  30. Kevin Calhoun, M.D.Chula Vista, CA 919111144239401
  31. Thomas Calkins, M.D.Chula Vista, CA 919111720037518
  32. Michael Callaham, M.D.San Francisco, CA 941431689613481
  33. Steven Callahan, M.D.Newport Beach, CA 926631164485991
  34. Andrei Callejas, MDRoseville, CA 956611396301875
  35. Ignacio CallesLos Angeles, CA 900951992200885
  36. Kathie Calloway, M.D.Long Beach, CA 908041235166034
  37. Tressa CallowayLos Angeles, CA 900331164577664
  38. Linette Calvo, MDCottonwood, CA 960221649366691
  39. Benjamin Camacho, M.D.Stockton, CA 952031003349804
  40. David Cameron, D.O.Sacramento, CA 958191295807956
  41. Morgan Camp, MDSan Rafael, CA 949031407845738
  42. Danielle Campagne, MDFresno, CA 937211184813487
  43. Benjamin Campbell, D.O.Roseville, CA 956611851687727
  44. Christopher Campbell, M.D.San Jose, CA 951281932467255
  45. Colleen Campbell, MDSan Diego, CA 921031669416483
  46. Jerilynn Campbell, M.D.Arroyo Grande, CA 934201023052834
  47. Scott Campbell, MD, MPHSan Francisco, CA 941151639243918
  48. Steffani Campbell, MDFresno, CA 937011336601939
  49. Gabriel Campion, MDNorthridge, CA 913251275068033
  50. John Campo, MDTorrance, CA 905051649663394

Source: CMS NPPES, primary taxonomy 207P00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 28 of 51 per resident

  1. Montana21
  2. Arizona20
  3. Kentucky20
  4. California20
  5. Virginia20
  6. North Carolina19
  7. 50 states and D.C.21

Source: CMS NPPES, primary taxonomy 207P00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

80.9% of these records appear in a Medicare file, against 81.5% 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. California80.9%
  2. United States81.5%

Emergency Medicine Physician records in California, measured

  • In a Medicare file6,272 of 7,751 · 80.9% here, 81.5% nationally
  • In the CMS Doctors and Clinicians file4,561 · 58.8% here, 58.7% nationally
  • Not updated in five years or more4,610 · 59.5% here, 54.8% nationally
  • Median graduation year2011 · the 4,560 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207P00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

7,751 NPPES records list emergency medicine physician (207P00000X) as their primary taxonomy with a practice address in California: 20 per 100,000 residents against 21 nationally (50 states and D.C.). Los Angeles has 632 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 York5,025
  2. Texas4,885
  3. Florida4,034
  4. Pennsylvania3,911

States with a similar rate per 100,000

  1. Virginia19.8
  2. Kentucky20.0
  3. Arizona20.1
  4. North Carolina19.3

The largest states

  1. New York5,025
  2. Texas4,885
  3. Florida4,034
  4. Pennsylvania3,911
  5. Illinois3,291

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.