Addiction Medicine Doctors (Anesthesiology) in California
Data updated monthly · Last refresh October 2026
11 Addiction Medicine (Anesthesiology) providers practice in California, including 1 (9%) offering telehealth. The largest concentration is in Stockton. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
11providers
1telehealth
Stocktontop city
Addiction Medicine (Anesthesiology) by city in California
Choose a city to see providers there.
Addiction Medicine (Anesthesiology) providers in California
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Malcolm Wehrle, M.D.Anaheim, CA · No drug or device payments recorded (2025) ·
(714) 997-2674 Dr. Bee Ramirez, M.D.Fontana, CA · No drug or device payments recorded (2025) ·
(562) 639-9026 Dr. Brian Mclean, M.D.Loma Linda, CA · $205 in drug and device payments (2025) ·
(310) 899-0539 Dr. Brian Harris, MDMenlo Park, CA · $380 in drug and device payments (2025) ·
(650) 308-4845 Dr. Daniel Bouland, MDOrange, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 748-6298 Dr. Samuel Shapiro, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 795-6596 Dr. Suma Singh, MDSan Jose, CA · No drug or device payments recorded (2025) ·
(408) 885-5429 Dr. James Spitler, M.D.Santa Cruz, CA · No drug or device payments recorded (2025) ·
(831) 800-1313 Dr. Jason Giles, M.D.Santa Monica, CA · No drug or device payments recorded (2025) ·
(310) 419-8799 Dr. Susan Koo, MDStockton, CA · No drug or device payments recorded (2025) ·
(209) 478-2487 Dr. Christopher FontayneVentura, CA · No drug or device payments recorded (2025) ·
(805) 641-9100 Common questions
How many Addiction Medicine (Anesthesiology) providers are in California?There are 11 Addiction Medicine (Anesthesiology) providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Addiction Medicine (Anesthesiology) providers in California offer telehealth?Yes. 1 of the 11 Addiction Medicine (Anesthesiology) providers in California (about 9%) report offering telehealth services in CMS data.
Which cities in California have the most Addiction Medicine (Anesthesiology) providers?Stockton (1), Fontana (1), Ventura (1) have the highest concentration of Addiction Medicine (Anesthesiology) providers in California.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
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