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 54 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. David Haase, MDLos Angeles, CA 900951174027254
  2. Zachary Haberman, M.D.Stockton, CA 952041831553171
  3. Michael Habibe, MDFresno, CA 937201972545754
  4. Aarash Habibi, MDRancho Mirage, CA 922701265061857
  5. Michael Habicht, MDSouth Lake Tahoe, CA 961501316182397
  6. Greg Hachigian, M.D.Sacramento, CA 958171558342022
  7. Earl Hackett, M.D.Selma, CA 936621437168796
  8. Christian Hackshaw, M.D.Lakeport, CA 954531881637023
  9. Ava Hacopian, MDMoreno Valley, CA 925181992759369
  10. Brett Hadley, D.O.Aliso Viejo, CA 926561932499829
  11. Sana Hadyah, MDRiverside, CA 925011295484434
  12. Benjamin Hafkenschiel, MDSan Jose, CA 951281710940457
  13. John Hage, M.D.Monterey, CA 939401548277999
  14. Shaghayegh Haghighat, M.D.San Pedro, CA 907321285663310
  15. Alicia Haglund, MDVentura, CA 930031760449581
  16. Berhane Hagos, MDOrange, CA 928681790421907
  17. In-Hei Hahn, MDStanford, CA 943051962575647
  18. Sarah Haider, MDTorrance, CA 905021396595369
  19. Stephen HaightFresno, CA 937211851753875
  20. David Hakkarinen, M.D.Fresno, CA 937011659601284
  21. Eryk Hakman, MDLos Angeles, CA 900481104480730
  22. Rachelle Halasa, MDRoseville, CA 956611982068748
  23. Thomas Halderman, PASanta Cruz, CA 950621710957642
  24. Thomas Hale, MDTempleton, CA 934651538117502
  25. Larry Halem, M.D.Santa Monica, CA 904041568574937
  26. Kadeer Halimi, D.O.Fremont, CA 945381912995952
  27. David Hall, MDOroville, CA 959661417993502
  28. Jeanine Hall, M.D.Los Angeles, CA 900271639343866
  29. Jennifer Hall, MDYreka, CA 960971629117668
  30. Kelly Hall, DVMLancaster, CA 935341124479183
  31. Nicholas Hall, MDPalo Alto, CA 943041649815325
  32. Olivia HallSan Francisco, CA 941431922568864
  33. Stephanie Hall, M.D.Los Angeles, CA 900331689875247
  34. Stephen Hall, MDSacramento, CA 958251891873501
  35. Kathryn Hall-Boyer, MDEmeryville, CA 946081144240201
  36. Lisa Hall-Moore, MDSolvang, CA 934631093743494
  37. Gary Hallam, MDSacramento, CA 958161508974536
  38. McKenzie Halle, MDLos Angeles, CA 900331578052437
  39. Gregory Hallert, MDLos Angeles, CA 900481801882071
  40. Molly Hallweaver, MDSacramento, CA 958171134655905
  41. Rodman Hamer, M.D.Santa Barbara, CA 931101578811337
  42. Joseph Hamera, MDFresno, CA 937211861841926
  43. Sanaz Hamidi, M.DLos Alamitos, CA 907201447411566
  44. Julie Hamilton, MDRedding, CA 960011700813425
  45. Nicholas Hamilton, M.D.Fresno, CA 937211366685927
  46. Paul Hamilton, M.D.Long Beach, CA 908221750314191
  47. Robert Hamilton, M.D.Fresno, CA 937261386693547
  48. Robert Hamilton, MDRedding, CA 960011407885759
  49. David Hammons, MDSan Jose, CA 951121639256563
  50. Michael HamptonTravis Afb, CA 945351649480542

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.