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 143 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. Christina Maria Umber, M.D.Paradise, CA 959691376839605
  2. Kelechi UmogaBurlingame, CA 940101205579810
  3. Matthew Underwood, M.D.Moreno Valley, CA 925551245345214
  4. Robert Ungar, MDLos Angeles, CA 900271063571636
  5. Kelly Unger, MDHuntington Beach, CA 926471023047412
  6. John Uphold, MDMontebello, CA 906401124016837
  7. Ravi Uppal, DOMadera, CA 936361629508155
  8. Susan Urstein, MDSanta Monica, CA 904041528025558
  9. Jeffrey UsuiSacramento, CA 958171699279802
  10. Peter Utas, M.D.Glendale, CA 912061083661284
  11. Thomas Utecht, MDFresno, CA 937211538111448
  12. Emily UtschigSan Diego, CA 921201043605256
  13. Alan Uyeno, MDTracy, CA 953761215928437
  14. Reza Vaezazizi, M.D.Wildomar, CA 925951922042092
  15. Yogesh Vaje, MDThousand Oaks, CA 913601205525268
  16. Virginia Valadka, M.D.Simi Valley, CA 930651326089640
  17. Chad Valderrama, M.D.Encinitas, CA 920241437435963
  18. Guido Valdes, MDSan Diego, CA 921341730159179
  19. Michael Valdivia, MDOrange, CA 928681306541347
  20. Carla Valentine, MDSanta Barbara, CA 931051508808387
  21. Robert Valentine, PAOakland, CA 946091720036148
  22. Marissa Valenzuela, MDLoma Linda, CA 923541588369540
  23. Walter Valesky, MDOrange, CA 928681790925329
  24. Rommel Vallero, MDSacramento, CA 958251558449264
  25. Kristina Van De Goor, MDLos Angeles, CA 900331154070761
  26. Jonathan Van De Leuv, MDSan Diego, CA 921201922319698
  27. Dries Van Dyk, D.O.Visalia, CA 932911326492760
  28. Aneema Van Groenou, MDFremont, CA 945381770668436
  29. Karen Van Hoesen, MDSan Diego, CA 921031750322517
  30. Kylie Van Hoesen, MDSan Diego, CA 921031306586235
  31. Vance Van Tassell, M.D.Rocklin, CA 956771417957341
  32. Cheryl Vance, MDSacramento, CA 958171205811171
  33. Donald Vance, MDBonita, CA 919021154384022
  34. Nathan Vanden BergeSacramento, CA 958171003232331
  35. Gerry Vander Velde, MDElk Grove, CA 957571851557722
  36. Veralyn Vanderkraan, DOPalm Springs, CA 922621093160194
  37. Christopher Vandivort, M.D.Alameda, CA 945011063876126
  38. Richard Vanhorn, M.D.Sacramento, CA 958171306011127
  39. Vance Vanier, MDStanford, CA 943051114091436
  40. Atish Vanmali, M.D.Bakersfield, CA 933061497117790
  41. Brittaney Vargas, MDMammoth Lakes, CA 935461881181972
  42. Juana Vargas, MDSan Jose, CA 951281710568266
  43. Michele Vargas, DOGlendora, CA 917411306873583
  44. Maria Vargas Jaramillo, MDPasadena, CA 911051992837892
  45. Lily Vartanyan, MDLos Angeles, CA 900891427547389
  46. Ali Varzgah, M.D.Eureka, CA 955011871794719
  47. Bina Vasantharam, M.D.Stockton, CA 952041730416561
  48. Anita Vashi, MDPalo Alto, CA 943041487814422
  49. Jaime Vasquez, M.D.Santa Rosa, CA 954031417122615
  50. Juan Vasquez Vasquez, MDRancho Mirage, CA 922701538749262

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.