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 60 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. Amanda Holden, M.D.Escondido, CA 920251538327713
  2. William Holder, M.D.South San Francisco, CA 940801205216728
  3. Sarah Holgren, MDSanta Rosa, CA 954031801246962
  4. Rudolph Holguin, MDRoseville, CA 956611508944281
  5. James Holland, MDWest Covina, CA 917901831146240
  6. Gary Hollinger, PA-CFairfield, CA 945331598868705
  7. Jamila Holloway, MDSalinas, CA 939011629607601
  8. Erika Hollywood, DOTorrance, CA 905021083319693
  9. James Holmes, MD, MPHSacramento, CA 958171427033091
  10. Kyle Holmes, M.D.Fairfeild, CA 945331386671832
  11. Michelle Holmes, MDSanta Clara, CA 950511811069651
  12. Kurt Holt, D.O.Santa Rosa, CA 954051447546072
  13. Kelly Holz, MDMonterey, CA 939401568828275
  14. Darren Hom, MDPlacentia, CA 928701861438947
  15. Stephen Homan, D.O.Wildomar, CA 925951104976661
  16. Katherine Homann, M.D.San Diego, CA 921031992023444
  17. Simson HonSan Francisco, CA 941431376195180
  18. David Hong, MDEncino, CA 913161396811501
  19. Jeffrey Hong, MDOakland, CA 946111215015094
  20. Joshua Hong, MDPomona, CA 917671871822726
  21. Timothy Hong, MDSan Francisco, CA 941431265963953
  22. Woo Suk Hong, MDLos Angeles, CA 900951851927834
  23. William Honigman, MDAnaheim, CA 928071477624385
  24. Samantha Honner, MDOakland, CA 946021326236183
  25. Drew Hood, MDJackson, CA 956421548373202
  26. Marissa Hood, DOSanta Barbara, CA 931051447886304
  27. Ron Hood, MDSonora, CA 953701730292483
  28. Robert Hook, M.D.Santa Monica, CA 904041184659062
  29. Ross Hooker, MDFresno, CA 937211588895171
  30. Glen Hookey, MDModesto, CA 953551639673536
  31. Gwendolyn Hooley, MDLos Angeles, CA 900951558865220
  32. Wirachin Hoonpongsimanont, MDOrange, CA 928681033429253
  33. Henry Hooper, M.D.Oxnard, CA 930301932155223
  34. Natalie Hoover, M.D.Carmichael, CA 956081053679324
  35. Tamara Hoover, M.D.El Cajon, CA 920211104836519
  36. Hollis Hopkins, M.D.Sacramento, CA 958231316234560
  37. Helena Horak, M.D.West Hills, CA 913071477789949
  38. Brian Horan, DOFresno, CA 937211730343757
  39. Jennifer Horan, DOColton, CA 923241720367659
  40. Terrence Horan, M.D.Roseville, CA 956611215346382
  41. Timothy Horeczko, M.D., M.S.C.R.Sacramento, CA 958171861690448
  42. Lucy Hormberg, MDSan Leandro, CA 945771821438565
  43. Kirsten Hornbeak, M.D.San Diego, CA 921031205214442
  44. Adriana Horner, MDBakersfield, CA 933091356838635
  45. John Horning, MDSan Bruno, CA 940661033148523
  46. Cheryl Lynn Horton, MDOakland, CA 946111477794402
  47. Ryan Horton, MDSouth Lake Tahoe, CA 961501912317736
  48. Robert Hostetter, MDKing City, CA 939301528048931
  49. Evan Houck, D.O.Colton, CA 923241467652834
  50. Jeffrey Houghton, DORancho Mirage, CA 922701376998526

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.