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 126 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. Jeffrey Solomon, M.D.Huntington Beach, CA 926481144243965
  2. Mitchell Solomon, M.D.Simi Valley, CA 930651790799351
  3. Perry Solomon, MDSan Ramon, CA 945831215186887
  4. Francisco SolorioRoseville, CA 956611952838500
  5. Jaspreet SomalSan Diego, CA 921031972890507
  6. Sneha Somasekar, DOStanford, CA 943051245810092
  7. John SonOrange, CA 928681033748827
  8. Kenneth Son, M.D.Los Angeles, CA 900171730149956
  9. Kenneth Son, M.D.Sacramento, CA 958211316931363
  10. Rakesh Sondekoppam Vijayashankar, MBBSStanford, CA 943051083269187
  11. Daniel Sones, M.D.Beverly Hills, CA 902101700811395
  12. Chao Song, M.D.Montebello, CA 906401356494041
  13. Gregory Song, MDBaldwin Park, CA 917061124195086
  14. Sang Hoon SongSacramento, CA 958171649702549
  15. Zhenkai Song, M.D.Corona, CA 928821306884531
  16. Vandana Soni, M.D.Fountain Valley, CA 927081376694364
  17. James Sonner, MDSan Francisco, CA 941431508819400
  18. Deepak Sonthalia, MDSan Diego, CA 921201073680989
  19. Joseph Soo, M.D.Loma Linda, CA 923541639160070
  20. Kenneth Soohoo, M.D.Northridge, CA 913251477528255
  21. Michael Sopher, MDLos Angeles, CA 900951104868710
  22. Patrick Soran, M.D.Stanford, CA 943051619061058
  23. Sonja Sorbo, MDSacramento, CA 958231952489601
  24. Karl Sorensen, M.D.Mountain View, CA 940401447200555
  25. Claudia Sotillo, M.D.Stanford, CA 943051558743419
  26. Carlos SotoWest Hollywood, CA 900461346532819
  27. Catherine Soto, MDChico, CA 959261619163755
  28. Colton SoudanChico, CA 959261740770924
  29. John Souza, M.D.Santa Barbara, CA 931111801988274
  30. James Sowers, MD, PHDOrange, CA 928681700527470
  31. Matthew SpalittaRancho Mirage, CA 922701821588393
  32. Howard Spang, M.D.Santa Barbara, CA 931051649315003
  33. Tanaya Sparkle, M.D.Burbank, CA 915051609218023
  34. J Sparks, M.D.San Diego, CA 921341366414013
  35. Kristen Sparrow, M.D.San Francisco, CA 941091154492585
  36. Sandra Spaulding, M.D.Sacramento, CA 958211689668634
  37. Robert Spears, M.D.Fremont, CA 945381578572897
  38. John Speicher, MDSacramento, CA 958211861653271
  39. John Spence, M.D.Glendale, CA 912081821004565
  40. Joel Spencer, M.D.San Diego, CA 921201306958608
  41. Bradley Spiegel, M.D.Thousand Oaks, CA 913611760491039
  42. Philip Spiegel, M.D.Encino, CA 913161760458376
  43. William Spina, MDSan Francisco, CA 941171962594994
  44. Michael Spiro, MB.BSSan Francisco, CA 941431134462617
  45. Steven Spiro, M.D.Burbank, CA 915051699798736
  46. Joshua Spotkov, DOWest Hills, CA 913071285262154
  47. Jean Sprengel, M.D.Orange, CA 928681316907553
  48. Dawn Springer, MDStanford, CA 943051750887618
  49. Mark Spurlock, MDMission Viejo, CA 926911548208374
  50. Lynn Squires, MD, FRCPCPalo Alto, CA 943041700666401

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.