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 116 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. Brian Resler, M.D.San Francisco, CA 941431881984409
  2. Clairose Retino, MDLos Angeles, CA 900331497172522
  3. Brian Reuter, M.B.B.S.Stockton, CA 952031285011064
  4. Jeffrey Rey, M.D.Mission Viejo, CA 926911477587327
  5. Carlo Reyes, M.D.Westlake Village, CA 913611740219104
  6. David Reyes, MDHollister, CA 950231154364438
  7. Paulo Reyes, M.D.Victorville, CA 923951245289388
  8. Vivian Reyes, MDSan Francisco, CA 941151801974308
  9. Roberto Reyna, MDRancho Mirage, CA 922701669056107
  10. Joelle Reynard, M.D.Orange, CA 928681013320175
  11. Tyler Reynard, MDOrange, CA 928681316206394
  12. Mark Reynolds, M.D.Laguna Hills, CA 926531831124577
  13. Susan Reynolds, MDPacific Palisades, CA 902721184785404
  14. Teri Reynolds, MDSan Francisco, CA 941431962649814
  15. Vanessa Reynolds, MDFontana, CA 923351386792331
  16. Yalda Rezaimehr, M.D.Harbor City, CA 907101689990947
  17. Wissam RhayemSherman Oaks, CA 914031568880136
  18. Christopher Rhead, MDChico, CA 959261487664959
  19. Brian Rhee, M.DGarden Grove, CA 928431346290772
  20. Paul Rhee, M.D.Pasadena, CA 911051063526747
  21. Carl Rhodes, DOMoreno Valley, CA 925551457933152
  22. Christopher RibaLoma Linda, CA 923541699416693
  23. Ryan Ribeira, MDStanford, CA 943051629394036
  24. Erin Ricart, MDSan Francisco, CA 941021568697555
  25. Raymond Ricci, M.D.Newport Beach, CA 926631215991252
  26. Steven Riccoboni, M.D.Fresno, CA 937211154765196
  27. Brian Rice, MDStanford, CA 943051497079859
  28. Christopher Rice, MDSan Diego, CA 921201740975150
  29. Donald Rich, M.D.Santa Cruz, CA 950621568496826
  30. Kenneth Rich, MDSanta Ana, CA 927051801816004
  31. Aurore Richard, D.OColton, CA 923241154661544
  32. Chase RichardLos Angeles, CA 900951477015238
  33. Matthew Richard, M.D.Lancaster, CA 935341043293004
  34. Brian Richards, D.O.Fontana, CA 923351427445055
  35. John Richards, M.D.Sacramento, CA 958171033190657
  36. Derek Richardson, MDSan Francisco, CA 941151871750851
  37. Donna Richardson, MDSan Diego, CA 921201164570107
  38. Gregory Richardson, M.D.Fresno, CA 937211710326038
  39. Hal Richardson, MDWhittier, CA 906021750439543
  40. Robert Richardson, M.D.Lancaster, CA 935341982642179
  41. Alec Richmond, M.D.Walnut Creek, CA 945961851487672
  42. Mark Richmond, MDSanta Barbara, CA 931051336171545
  43. Jeffrey Ricks, M.D.Twentynine Palms, CA 922781063476752
  44. Wilfred Rico, MDWalnut Creek, CA 945971790984730
  45. Ashley Rider, M.D.Stanford, CA 943051366837148
  46. John Riel, M.D.Newport Beach, CA 926331447213251
  47. Tris Rieland, M.D.Sacramento, CA 958231174562870
  48. Neil Rifenbark, MDTorrance, CA 905021700191285
  49. Robert Rigby, DOPalm Springs, CA 922621831651231
  50. Tyler Rigdon, MDOrange, CA 928681427707553

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.