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 117 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 Riggs, M.D.Bakersfield, CA 933011518130533
  2. Fran Riley, MDStanford, CA 943051942704630
  3. Darlene Rimle, D.O.Yorba Linda, CA 928871992050801
  4. Ernest James Rin, MDLos Angeles, CA 900271023578101
  5. Kristopher Rinehart, MDArcadia, CA 910071295763597
  6. Robert Riner, M.D.Greenbrae, CA 949041912929290
  7. Mark Ringer, MDLoma Linda, CA 923541629607171
  8. Patrice RingoMartinez, CA 945531497968457
  9. Salvador Rios, MDLos Angeles, CA 900171669967386
  10. Mai Tram Riquier, MDOrange, CA 928681174272470
  11. Gennarina Riso, DOMonterey, CA 939401568923183
  12. Michael Ritter, M.D.Mission Viejo, CA 926911295769156
  13. Maxim Ritzenberg, M.D.San Francisco, CA 941431669748158
  14. Sage Rivard, DOPalm Springs, CA 922621316526551
  15. Jaime Rivas, M.D.Escondido, CA 920251699782987
  16. Gerin River, MDOakland, CA 946111831408921
  17. Ronald Rivera, M.D.Orange, CA 928681558716233
  18. Liana Rizkalla, MDBakersfield, CA 933061306532007
  19. Haider Rizvi, MDChino, CA 917101255355186
  20. Jennifer Rizzoli, M.D.Travis Afb, CA 945351669543096
  21. Richard Roach, DOCamp Pendleton, CA 920551508858978
  22. Robert Roach, MDWest Hills, CA 913071740920073
  23. Caitlin RoakeFresno, CA 937011477131852
  24. Charles Roberson, MD, MBATemecula, CA 925921447838156
  25. Sarah RobersonFresno, CA 937011811436413
  26. Charlaine Roberto, MDFresno, CA 937011205463585
  27. Andrea Roberts, MDRedwood City, CA 940631093889313
  28. Brian Roberts, M.D.San Luis Obispo, CA 934051235112988
  29. Gary Roberts, MDDavis, CA 956161841381548
  30. Hunter Roberts, MDTravis Afb, CA 945351548908635
  31. John Roberts, M.D.Los Angeles, CA 900331104189067
  32. Jordan Roberts, D.O.Bakersfield, CA 933061164780151
  33. Robin Roberts, MDSan Francisco, CA 941141558435875
  34. Shelby Roberts, MDPalm Springs, CA 922621851911911
  35. Eunice Robertson, M.D.South San Francisco, CA 940801427204494
  36. Gregory Robertson, MDTempleton, CA 934651659329233
  37. Sarah Robertson, MDSacramento, CA 958251962580670
  38. Tania Robertson, M.D.Encinitas, CA 920241063623320
  39. Drew RobinettSacramento, CA 958171669050951
  40. Anthony RobinsonTorrance, CA 905021417758350
  41. Carly Robinson, MDLos Angeles, CA 900891508629791
  42. Chelsea Robinson, MDLos Angeles, CA 900951134624430
  43. Eric Robinson, MDEureka, CA 955011497017339
  44. Joseph Robinson, MDSan Luis Obispo, CA 934051972562072
  45. Kenneth Robinson, MDPanorama City, CA 914021346398211
  46. Kenneth RobinsonPortola, CA 961221437157914
  47. Paul RobinsonSan Francisco, CA 941221003351891
  48. Jason Roby, D.O.National City, CA 919501295981512
  49. Matthew RocesLos Angeles, CA 900241093463093
  50. Bailey Roche, M.D.Sacramento, CA 958171649533712

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.