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 61 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. Jonathan Houpt, M.D.Newport Beach, CA 926631447258199
  2. Daniel Houseman, M.D.Long Beach, CA 908131942464771
  3. Daniel Houssiere, DOArcadia, CA 910071245355759
  4. Kyle Houston, NREMTSanta Barbara, CA 931051528871001
  5. Leah Houston, MDSan Francisco, CA 941021275768103
  6. Hoori Hovanessian, MDWhittier, CA 906021578599825
  7. Lyolya Hovhannisyan, MD, MSCGlendale, CA 912081801479464
  8. Kaitlen HowellOakland, CA 946021619471851
  9. Kyle Howell, M.D.Mammoth Lakes, CA 935461093860645
  10. Riley Hoyer, M.D.Twentynine Palms, CA 922781093166480
  11. Bryan Hoynak, MDPlacentia, CA 928701316989130
  12. Tifany Hoyne, DOColton, CA 923241366855322
  13. Karen Hoyt, M.D.San Pedro, CA 907321740212109
  14. Adam Hryniewicki, MDSan Diego, CA 921031184244014
  15. Eric Hsia, MDRichmond, CA 948011396820064
  16. Renee Hsia, MDRedwood City, CA 940631871647362
  17. Elaine Hsiang, MDStanford, CA 943051386272979
  18. James Hsiao, M.D.La Mesa, CA 919421306022959
  19. Jonie Hsiao, M.D.Los Angeles, CA 900731033316195
  20. Dennis Hsieh, M.D.Oakland, CA 946021649520701
  21. George Hsieh, MDSan Clemente, CA 926731689698524
  22. Russell Hsieh, M.D.Fontana, CA 923351861673014
  23. Tiffany HsiehLos Angeles, CA 900241912169517
  24. Vanessa Hsieh-Park, MDSanta Clara, CA 950511720130529
  25. Andy Hsu, M.D.West Covina, CA 917921346282340
  26. Carol Hsu, M.DSan Jose, CA 951241487692679
  27. Diane HsuConcord, CA 945201992169304
  28. Edmund Hsu, MDOrange, CA 928681780188136
  29. Jerry HsuColton, CA 923241205529393
  30. Lawrence Hsu, M.D.Palo Alto, CA 943011609978600
  31. Michael Hsu, MDSanta Clara, CA 950511760987630
  32. Sarah Hsu, DOLos Angeles, CA 900331922628684
  33. Andy Hsueh, MDLong Beach, CA 908061134860976
  34. Raina Hszieh, MDSacramento, CA 958251073691721
  35. Eugene Hu, M.DApple Valley, CA 923071194761122
  36. Jeffrey HuRiverside, CA 925011851850986
  37. Kevin Hua, D.O.Oxnard, CA 930301861585010
  38. Serena HuaOakland, CA 946111346772514
  39. Tinh Hua, DOSanta Rosa, CA 954031871561100
  40. Alex Huang, MDBakersfield, CA 933061982131892
  41. Jeffrey Huang, MDWalnut Creek, CA 945961417281700
  42. Jennifer Huang, D.O.Los Angeles, CA 900891275708588
  43. Rwo-Wen Huang, M.D.Stanford, CA 943051417226572
  44. Shao-I Huang, D.O.Hayward, CA 945451215031455
  45. Wilson HuangSan Francisco, CA 941431093343550
  46. Gail HubbellSan Leandro, CA 945781114901402
  47. Moudi Hubeishy, MDLos Angeles, CA 900951578191854
  48. Craig Huber, MDBaldwin Park, CA 917061730250630
  49. Valerie Huckaby, M.D.Torrance, CA 905021891127296
  50. Krista Huerta, MDRichmond, CA 948011477538452

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.