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 120 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. Robert Rowe, M.D.Orange, CA 928681043674682
  2. Kiarash Rowhanian, M.D.West Hills, CA 913071013124635
  3. Kathleen Rowland, MDVacaville, CA 956881659933398
  4. Czarina Roxas, M.D.Santa Monica, CA 904011467676353
  5. Roger Roxas, M.D.Chula Vista, CA 919101578910840
  6. Charlotte Roy, M.D.Glendale, CA 912081295184695
  7. Robert Royer, M.DRoseville, CA 956611326060880
  8. Thomas Rozwadowski, M.D.Ba, CA 935561508917105
  9. Jason Ruben, MDSanta Barbara, CA 931051083655096
  10. Elizabeth Rubin, MDWest Hollywood, CA 900481770005936
  11. Mark Rubin, MDBeverly Hills, CA 902111760410690
  12. Sharon Rubin, MDLos Angeles, CA 900271225109143
  13. Joseph Rubino, MDRedwood City, CA 940631316026446
  14. Stephanie Rubio, MDFresno, CA 937011619122322
  15. Christina Rubio HoltzLos Angeles, CA 900191417995804
  16. Alexander Ruby, MDEl Segundo, CA 902451366822348
  17. Lawrence Rudd, M.D.Pasadena, CA 911061972629707
  18. Steven Rudd, M.D.Los Angeles, CA 900481992788897
  19. Scott Rudkin, MDOrange, CA 928681003996257
  20. Eric Rudnick, M.D.Red Bluff, CA 960801821462938
  21. Frances Rudolf, MDSan Diego, CA 921031821487430
  22. Melissa Rudolph, MDOrange, CA 928681922262898
  23. Rawnica Ruegner, M.D.Fresno, CA 937211861657595
  24. Wendy Ruggeri, M.D.Los Angeles, CA 900341447482062
  25. Christian Ruiz, MDOrange, CA 928681841795283
  26. Erin Ruiz, MDPalo Alto, CA 943041881213478
  27. Frank Ruiz, MDRedwood City, CA 940631285708503
  28. Raul Ruiz, MDRancho Mirage, CA 922701992746614
  29. Raymond Ryan Ruiz, M.D.Palmdale, CA 935511427475599
  30. Rebecca Ruiz, M.D.Bellflower, CA 907061407021215
  31. Robert Ruiz, P.A.El Centro, CA 992431720147077
  32. Elizabeth Runcie, D.O.Orange, CA 928681871936120
  33. Michael Rundell, D.O.San Diego, CA 921281275635831
  34. Aurilla Rush, MDApple Valley, CA 923071578619649
  35. Evan Rusoja, MD, PHDOakland, CA 946021013370865
  36. Isi Russ, MDLos Angeles, CA 900231609834498
  37. Amy Russell, MDLoma Linda, CA 923541073000832
  38. Joshua Russell, M.D., MSCManhattan Beach, CA 902661417274200
  39. Marie RussellLos Angeles, CA 900331760529556
  40. Mark Russell, MDOxnard, CA 930301457555864
  41. Thomas Russell, MDSacramento, CA 958251295814333
  42. Peter Russo, MDOroville, CA 959651679528350
  43. Anne Rutkowski, MDLong Beach, CA 908061396791018
  44. Todd Ruttenberg, D.O.Oceanside, CA 920561831401546
  45. Anna Ryabets-Lienhard, D.O.Los Angeles, CA 900271568758548
  46. Scott Ryan, BVMSSan Clemente, CA 926721093361925
  47. Dana Rygg, MDSacramento, CA 958231215015961
  48. George Rygg, MDNovato, CA 949451487637518
  49. Lauren Rys, DOBeale Afb, CA 959031538727680
  50. Nicholas Saade, MDTorrance, CA 905031023463734

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.