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 115 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. Jonathan Rosenthal, M.D.San Diego, CA 921231417913476
  2. Myer Rosenthal, M.D.Stanford, CA 943051780719948
  3. Jack Rosner, M.D.Los Angeles, CA 900331346604519
  4. John Rosoff, MDRedwood City, CA 940631780762377
  5. Alan Ross, M.D.Long Beach, CA 908061992728570
  6. Jennifer Ross, MD, PHDWest Hollywood, CA 900481538693718
  7. Michael RossLong Beach, CA 908221225371073
  8. Patrick Ross, MDLos Angeles, CA 900271326130238
  9. Stephen Ross, MDCarmel, CA 939231730848656
  10. Sepehr Rotchel, M.D.Los Angeles, CA 900341528336831
  11. David Roth, MDSan Diego, CA 921031194766436
  12. Patricia Roth, MDSan Francisco, CA 941431366407645
  13. Samuel Roth, M.D.San Bernardino, CA 924041164495008
  14. Vincent RothLos Angeles, CA 900331700467214
  15. Alexander Rothis, MDLos Angeles, CA 900491548473283
  16. Mark Rothman, MDBeverly Hills, CA 902121033107495
  17. James Rothschild, M.D.Oakland, CA 946021164817714
  18. Ronald Rothstein, M.D.Newport Beach, CA 926631134141286
  19. Marshall Rotterman, M.D.Belmont, CA 940021245505221
  20. Miguel Rovira, MDSan Diego, CA 921031972008696
  21. Callum Rowe, MDSacramento, CA 945171669906772
  22. Richard Rowe, MDOakland, CA 946091396701017
  23. Robert Rowland Smith, MDVisalia, CA 932911821044694
  24. Jennifer Roxas, M.D.Monterey, CA 939401134374911
  25. Kevin RoySan Diego, CA 921031922567726
  26. Alexandra Ruan, MDStanford, CA 943051891158804
  27. Victor Ruan, MDHarbor City, CA 907101568922169
  28. Rickey Rubin, M.D.Pasadena, CA 911051174691174
  29. Robert Rubin, MDLos Angeles, CA 900341437220472
  30. Sonny Rubin, MDNewport Beach, CA 926631891714374
  31. Steven Rubinsky, M.D.Rancho Mirage, CA 922701043412448
  32. Gabriel RubioStanford, CA 943051306340534
  33. Reid Rubsamen, MDWalnut Creek, CA 945981073549499
  34. Joseph Ruccione, MDSacramento, CA 958211871587535
  35. Benjamin Ruddick, M.D.Rancho Mirage, CA 922701487814299
  36. David Ruderman, M.D.Sacramento, CA 958211720080195
  37. Aaron Rudin, MDStanford, CA 943051508252214
  38. Mark Rudow, MDSanta Rosa, CA 954031275617243
  39. Elena Rudoy, M.D.Loma Linda, CA 923571598914772
  40. Scott Rudy, MDPalo Alto, CA 943011154463222
  41. Richard Ruffalo, MDNewport Beach, CA 926631285674986
  42. Joanne Rugen, M.D.Stanford, CA 943051841371689
  43. Phillip Ruhl, DOStockton, CA 952031033295316
  44. Donald Ruhland, M.D.Orange, CA 928681760455604
  45. Jorge Ruiz, MDWest Hills, CA 913071588026033
  46. Viviana Ruiz Barros, MDSacramento, CA 958171174924633
  47. Christopher Rumery, M.D.Fairfield, CA 945331073507018
  48. David Rummell, MDSan Jose, CA 951191972689487
  49. Winnie Ruo, M.DOrange, CA 928681194767988
  50. Horia Rus, MDOakland, CA 946111912168147

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.