Addiction Medicine Doctors (Family Medicine) in California
Data updated monthly · Last refresh October 2026
129 Addiction Medicine (Family Medicine) providers practice in California, including 19 (15%) offering telehealth. The largest concentration is in Ventura. 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.
129providers
19telehealth
Venturatop city
Addiction Medicine (Family Medicine) by city in California
Choose a city to see providers there.
Addiction Medicine (Family Medicine) 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. William Mcleod, DOMarysville, CA · No drug or device payments recorded (2025) ·
(530) 742-7747 Dr. John Bennetts, M.D.Monterey, CA · No drug or device payments recorded (2025) ·
(831) 373-7300 Dr. Nadine Hammoud, DO, MSMoreno Valley, CA · No drug or device payments recorded (2025) ·
(833) 574-2273 Dr. Paul Little, MDMurrieta, CA · $486 in drug and device payments (2025) ·
(951) 894-5072 Dr. Atul Grover, MDNewport Beach, CA · $67 in drug and device payments (2025) · Telehealth ·
(949) 764-6954 Dr. Steven Ey, M.D.Newport Beach, CA · No drug or device payments recorded (2025) ·
(949) 764-5656 Dr. Martin Sahakyan, MDNorthridge, CA · $20 in drug and device payments (2025) ·
(818) 987-9880 Dr. Michael Stone, D.O.Norwalk, CA · $449 in drug and device payments (2025) ·
(562) 864-6377 Dr. Diana Chen, MD, MBAOakland, CA · No drug or device payments recorded (2025) ·
(510) 535-4400 Dr. Judith Martin, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 533-0800 Dr. Matilde Fredrickson, DOOakland, CA · No drug or device payments recorded (2025) ·
(510) 437-5039 Dr. Jonathan Shirman, DOOxnard, CA · $51 in drug and device payments (2025) · Telehealth ·
(805) 985-5505 Dr. Ross Ziegler, M.D.Palo Alto, CA · No drug or device payments recorded (2025) ·
(650) 494-7090 Dr. K. BallParadise, CA · No drug or device payments recorded (2025) ·
(562) 743-1657 Dr. Janet Kinkead, D.O.Pasadena, CA · No drug or device payments recorded (2025) ·
(619) 629-8787 Dr. Paul Nerz, MDPlacerville, CA · No drug or device payments recorded (2025) ·
(916) 871-6712 Dr. Ernest Vasti, M.D.Rancho Cordova, CA · No drug or device payments recorded (2025) ·
(916) 366-6531 Dr. Nawal Zafar, MDRancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 340-3911 Dr. Olatunde BosuRancho Mirage, CA · $38 in drug and device payments (2025) ·
(760) 773-4130 Dr. Crisanto Leonor, MDRialto, CA · No drug or device payments recorded (2025) ·
(909) 421-9465 Dr. Jonathan Avalos, M.D. Dr. Rachel Caspar, M.DSacramento, CA · $150 in drug and device payments (2025) ·
(916) 443-3299 Dr. Diane Hambrick, M.D.Saint Helena, CA · No drug or device payments recorded (2025) ·
(707) 967-5720 Dr. Michelle OkoreehSan Bernardino, CA · $61 in drug and device payments (2025) ·
(909) 387-7607 Dr. Robert Watrous, MDSan Bernardino, CA · No drug or device payments recorded (2025) ·
(909) 382-7100 Dr. Dale Apodaca, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(619) 291-5522 Dr. Elizabeth Barrera, D.O.San Diego, CA · No drug or device payments recorded (2025) · Telehealth ·
(619) 202-5276 Dr. Francisco Pardo, M.D.San Diego, CA · $438 in drug and device payments (2025) ·
(619) 793-7988 Dr. Jerry Ayers, MDSan Diego, CA · $245 in drug and device payments (2025) ·
(619) 683-9394 Dr. Puri Barin-tanjuaquio, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(619) 718-9890 Dr. Ako Jacintho, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 746-1940 Dr. Alann Weissman-ward, M.D.San Francisco, CA · $78 in drug and device payments (2025) · Telehealth ·
(415) 967-7058 Dr. Bridget Foley, DOSan Francisco, CA · No drug or device payments recorded (2025) · Telehealth ·
(415) 353-9339 Dr. David Smith, M.D.San Francisco, CA · $18 in drug and device payments (2025) ·
(415) 933-8759 Dr. Noelle Martinez, MD MPHSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 554-2500 Dr. Vinh Ngo, MDSan Francisco, CA · $164 in drug and device payments (2025) ·
(415) 598-7633 Dr. Kathryn Gunnison, M.D., M.S.San Jose, CA · $43 in drug and device payments (2025) ·
(408) 495-9471 Dr. Daniel Headrick, M.D.San Juan Capistrano, CA · No drug or device payments recorded (2025) ·
(800) 900-0444 Dr. Simon Ma, MD, MPHSan Leandro, CA · No drug or device payments recorded (2025) ·
(510) 454-1000 Dr. Renan Rojas, M.D.San Marcos, CA · $127 in drug and device payments (2025) ·
(760) 389-4283 Dr. Caleb Lusk, MDSan Pedro, CA · $1,371 in drug and device payments (2025) ·
(310) 547-0202 Dr. Jonathan Watson, MDSanta Ana, CA · No drug or device payments recorded (2025) ·
(714) 647-4666 Dr. Michael Stone, M DSanta Ana, CA · $35 in drug and device payments (2025) ·
(714) 547-4300 Dr. Darren Lipshitz, MDSanta Barbara, CA · No drug or device payments recorded (2025) ·
(415) 990-4888 Dr. Sarah Nasir, D.O.Santa Barbara, CA · No drug or device payments recorded (2025) ·
(805) 964-4795 Dr. Karen Hord-sandquist, MDSanta Maria, CA · No drug or device payments recorded (2025) ·
(805) 922-6597 Dr. Joy Hao, MDSanta Monica, CA · No drug or device payments recorded (2025) · Telehealth ·
(310) 319-4700 Dr. Elyse Eisenberg, M.D.Santa Rosa, CA · No drug or device payments recorded (2025) · Telehealth ·
(707) 523-3375 Dr. Myles Ketchum, M.D., PH.D.Santa Rosa, CA · No drug or device payments recorded (2025) · Telehealth ·
(707) 573-5250 Common questions
How many Addiction Medicine (Family Medicine) providers are in California?There are 129 Addiction Medicine (Family Medicine) providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Addiction Medicine (Family Medicine) providers in California offer telehealth?Yes. 19 of the 129 Addiction Medicine (Family Medicine) providers in California (about 15%) report offering telehealth services in CMS data.
Which cities in California have the most Addiction Medicine (Family Medicine) providers?Ventura (13), Loma Linda (10), Los Angeles (6) have the highest concentration of Addiction Medicine (Family Medicine) providers in California.
How many Addiction Medicine (Family Medicine) providers in California received drug or device company payments?56 of 129 Addiction Medicine (Family Medicine) providers in California (43%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
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.
Do most Addiction Medicine Doctors (Family Medicine) in California work in independent practices or large health systems?Among 62 Addiction Medicine Doctors (Family Medicine) in California enrolled in Medicare, 23% bill through a solo or small practice with fewer than 10 clinicians, 24% through a mid-size group of 10 to 99, and 53% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Addiction Medicine Doctors (Family Medicine) in California work at?According to CMS facility affiliation records, the California hospitals where the most Addiction Medicine Doctors (Family Medicine) hold privileges are Ventura County Medical Center in Ventura; Hoag Memorial Hospital Presbyterian in Newport Beach; Community Memorial Hospital - Ventura in Ventura.
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