NPPES file of Aug 9, 2026

Addiction Medicine (Anesthesiology) Physician in California

11 NPPES records list addiction medicine (anesthesiology) physician with a practice address in California, 0 per 100,000 residents, the 25th highest rate of 36. Anaheim and Fontana have the most; each record links to the provider's NPI and the California license search.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207LA0401X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Anaheim has the most, 1

  1. Anaheim1
  2. Fontana1
  3. Loma Linda1
  4. Menlo Park1
  5. Orange1

Addiction Medicine (Anesthesiology) Physician records in California

  1. Daniel Bouland, MDOrange, CA 928681720308737
  2. Christopher FontayneVentura, CA 930011215730056
  3. Jason Giles, M.D.Santa Monica, CA 904011023360542
  4. Brian Harris, MDMenlo Park, CA 940251396904785
  5. Susan Koo, MDStockton, CA 952101386173698
  6. Brian McLean, M.D.Loma Linda, CA 923541316173354
  7. Bee Ramirez, M.D.Fontana, CA 923351639807217
  8. Samuel Shapiro, M.D.Pasadena, CA 911011760619936
  9. Suma Singh, MDSan Jose, CA 951281982764734
  10. James Spitler, M.D.Santa Cruz, CA 950621487630109
  11. Malcolm Wehrle, M.D.Anaheim, CA 928051316968282

Source: CMS NPPES, primary taxonomy 207LA0401X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 25 of 36 per resident

  1. Ohio0.0
  2. Arkansas0.0
  3. Nevada0.0
  4. California0.0
  5. Georgia0.0
  6. Arizona0.0
  7. 50 states and D.C.0.0

Source: CMS NPPES, primary taxonomy 207LA0401X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

63.6% of these records appear in a Medicare file, against 60.3% 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. California63.6%
  2. United States60.3%

Addiction Medicine (Anesthesiology) Physician records in California, measured

  • In a Medicare file7 of 11 · 63.6% here, 60.3% nationally
  • In the CMS Doctors and Clinicians file2 · 18.2% here, 28.9% nationally
  • Not updated in five years or more5 · 45.5% here, 49.6% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207LA0401X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

11 NPPES records list addiction medicine (anesthesiology) physician (207LA0401X) as their primary taxonomy with a practice address in California: 0 per 100,000 residents against 0 nationally (50 states and D.C.). Anaheim has 1 of them (9%).

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. Florida10

The largest states

  1. Florida10
  2. Tennessee9
  3. New Jersey7
  4. Pennsylvania7
  5. Kentucky6

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.