NPPES file of Aug 9, 2026

Anesthesiology Physician in California

7,571 NPPES records list anesthesiology physician with a practice address in California, 19 per 100,000 residents, the 18th 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 113 of 152.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207L00000X · 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, 762

  1. Los Angeles762
  2. San Diego686
  3. San Francisco499
  4. Sacramento396
  5. Stanford387

Anesthesiology Physician records in California

  1. Phillip Riddle, MDVallejo, CA 945891861437360
  2. Daniel Ridley, MDLos Gatos, CA 950321114487428
  3. Jeffrey Rieker, M.D.Corona, CA 928821043266802
  4. Marianne Ries, M.D.San Diego, CA 921231952357709
  5. Tyson Riesenberg, MDSan Diego, CA 921031255590642
  6. Joseph Riggio, MDNewport Beach, CA 926631982644605
  7. Mark Rigler, MDSanta Cruz, CA 950651013968171
  8. Edward Riley, MDStanford, CA 943051487780201
  9. Eric RileyRancho Mirage, CA 922701831546589
  10. James Riley, M.D.Sacramento, CA 958211679725485
  11. Jay Rindenau, M.D.Irvine, CA 926181366544256
  12. Joseph Rinehart, MDNewport Beach, CA 926601659326874
  13. Jose Rios, MDStanford, CA 943051225787617
  14. Christopher Rishel, MDStanford, CA 943051528449071
  15. Loren Riskin, MDStanford, CA 943051700027778
  16. Vanja Ristovic, MDStanford, CA 943051104659150
  17. Jonathan Rittenbach, M.D.Sacramento, CA 958171801869771
  18. Stinson Ritter, MDSanta Barbara, CA 931051225298441
  19. Andrew Rivera, MDSan Ramon, CA 945831629464474
  20. Frain Rivera, M.D.Stanford, CA 943051417144049
  21. Miguel Rivera, M.D.Sacramento, CA 958211689669277
  22. Monica Rivera, M.D.Temecula, CA 925921427319532
  23. Richard Rivera, M.D.Sacramento, CA 958171033192315
  24. Franchesca Rivera-Calonje, M.D.Van Nuys, CA 914051275997223
  25. Lucas Rizkalla, MDSan Bernardino, CA 924041063161560
  26. Kyung Ro, MDGarden Grove, CA 928431023126869
  27. Tracy RoSan Diego, CA 921031639665144
  28. Gary Roach, MDSan Francisco, CA 941151336227941
  29. Kimberly Robbins, M.D.San Diego, CA 921031942434931
  30. Floyd Roberson, M.D.San Diego, CA 921231104882984
  31. Michael Roberts, M.D.Los Angeles, CA 900641578677951
  32. Richard Roberts, DOTemecula, CA 925921932763281
  33. Brian Robertson, MDSanta Maria, CA 934541356337570
  34. David Robertson, DOSanta Rosa, CA 954051396795340
  35. Marco Robin, D.O.Escondido, CA 920251457345621
  36. David Robinowitz, M.D.San Francisco, CA 941431508989377
  37. Breanna RobinsonTwentynine Palms, CA 922781043963929
  38. Joan Robinson, MDArcata, CA 955211770537706
  39. Lawrence Robinson, MDRiverside, CA 925061467507749
  40. Mark Robinson, M.D.Marysville, CA 969011720137599
  41. Scott Robinson, M.D.Greenbrae, CA 949041598859530
  42. Tracy Robinson, MDSan Jose, CA 951241528086014
  43. Julie Robles, M.D.San Diego, CA 921031013368687
  44. Jerome Robson, M.D.Modesto, CA 953551386677417
  45. Catherine Roby, DOSanta Rosa, CA 954041417187378
  46. Jay Roby, M.D.Los Angeles, CA 900331144531773
  47. Jerrad Roby, DOGreenbrae, CA 949041104026012
  48. Matthew Rockey, M.D.Sacramento, CA 958171063559110
  49. Todsaporn Rodbumrung, MDStanford, CA 943051871090571
  50. Katherine Rodenbeck, MDWest Hollywood, CA 900481356798524

Source: CMS NPPES, primary taxonomy 207L00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 18 of 51 per resident

  1. Montana20
  2. Arizona20
  3. Utah20
  4. California19
  5. Pennsylvania19
  6. Missouri19
  7. 50 states and D.C.18

Source: CMS NPPES, primary taxonomy 207L00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

71.3% of these records appear in a Medicare file, against 73.7% 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. California71.3%
  2. United States73.7%

Anesthesiology Physician records in California, measured

  • In a Medicare file5,396 of 7,571 · 71.3% here, 73.7% nationally
  • In the CMS Doctors and Clinicians file4,872 · 64.4% here, 67.2% nationally
  • Not updated in five years or more4,767 · 63.0% here, 57.8% nationally
  • Median graduation year2006 · the 4,868 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207L00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

7,571 NPPES records list anesthesiology physician (207L00000X) as their primary taxonomy with a practice address in California: 19 per 100,000 residents against 18 nationally (50 states and D.C.). Los Angeles has 762 of them (10%).

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 York5,062
  2. Texas4,635
  3. Florida3,375
  4. Illinois2,575

States with a similar rate per 100,000

  1. Utah19.6
  2. Pennsylvania19.1
  3. Arizona19.8
  4. Montana20.0

The largest states

  1. New York5,062
  2. Texas4,635
  3. Florida3,375
  4. Illinois2,575
  5. Pennsylvania2,481

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.