Adult Medicine Doctors in California
Data updated monthly · Last refresh October 2026
385 Adult Medicine providers practice in California, including 72 (19%) offering telehealth. The largest concentration is in Los Angeles. 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.
385providers
72telehealth
Los Angelestop city
Adult Medicine by city in California
Choose a city to see providers there.
Adult 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. Himabindu Chinnepalli, MDDublin, CA · No drug or device payments recorded (2025) ·
(510) 284-5400 Dr. Welim AzingeEl Centro, CA · $214 in drug and device payments (2025) · Telehealth ·
(760) 693-5372 Dr. Gregory Joy, MDEl Dorado, CA · No drug or device payments recorded (2025) ·
(530) 622-9522 Dr. David Larson, M.D.Encinitas, CA · $120 in drug and device payments (2025) ·
(858) 367-3401 Dr. Edward Ferrer, MDEncinitas, CA · No drug or device payments recorded (2025) · Telehealth ·
(760) 213-3299 Dr. Ramin Farsad, M.D.Encinitas, CA · $67 in drug and device payments (2025) · Telehealth ·
(760) 729-2351 Dr. Mona Tabib, MDEncino, CA · No drug or device payments recorded (2025) ·
(818) 789-7893 Dr. Ahmad Ahmadzia, M.D.Fair Oaks, CA · No drug or device payments recorded (2025) ·
(916) 894-8212 Dr. Bernadette Kelly, MDFolsom, CA · No drug or device payments recorded (2025) · Telehealth ·
(916) 989-5930 Dr. Marcello Caso, MD, DCFolsom, CA · No drug or device payments recorded (2025) · Telehealth ·
(916) 220-3498 Dr. Rita Azzam Caso, D.O.Folsom, CA · No drug or device payments recorded (2025) ·
(916) 817-5000 Dr. Lawrence Goldyn, M.D.Fort Bragg, CA · No drug or device payments recorded (2025) ·
(707) 964-1251 Dr. Subena Tilley, D.O.Fremont, CA · $917 in drug and device payments (2025) · Telehealth ·
(510) 794-1990 Dr. Shani Truong, M.D.French Camp, CA · No drug or device payments recorded (2025) ·
(209) 468-6937 Dr. Chunxia Li, M.D.,PH.D.Fresno, CA · $20 in drug and device payments (2025) · Telehealth ·
(559) 448-4555 Dr. Gessie Lurlay, MDFresno, CA · No drug or device payments recorded (2025) ·
(559) 603-7240 Dr. Isabella Castellanos, NPFresno, CA · No drug or device payments recorded (2025) ·
(559) 720-0817 Dr. Jusel Ruelan, D.O.Fresno, CA · $75 in drug and device payments (2025) · Telehealth ·
(559) 459-5700 Dr. Luis Martinez, M.D.Fresno, CA · $149 in drug and device payments (2025) · Telehealth ·
(559) 437-7380 Dr. Sebouh Krioghlian, D.O.Fresno, CA · No drug or device payments recorded (2025) ·
(559) 448-4555 Dr. Angelina NguyenGardena, CA · $822 in drug and device payments (2025) ·
(310) 324-5599 Dr. Sedona Valentine, MDGardena, CA · No drug or device payments recorded (2025) ·
(800) 780-1230 Dr. Sergio VieraGardena, CA · No drug or device payments recorded (2025) · Telehealth ·
(833) 574-2273 Dr. Charles Myung, M.D.Garden Grove, CA · $139 in drug and device payments (2025) ·
(714) 903-2218 Dr. Julian LeonGarden Grove, CA · No drug or device payments recorded (2025) ·
(714) 235-2423 Dr. Thaibinh Phan, M.D.Garden Grove, CA · $1,019 in drug and device payments (2025) · Telehealth ·
(714) 539-4900 Dr. Claudia Talbot, DNP, APRN, FNP-CGlendale, CA · No drug or device payments recorded (2025) ·
(818) 945-6003 Dr. Lusine Simonyan, NDGlendale, CA · No drug or device payments recorded (2025) ·
(818) 484-5471 Dr. Rodney Nocon, NPGlendale, CA · No drug or device payments recorded (2025) ·
(818) 550-1998 Dr. Syrus Feridouni, M.D.Glendale, CA · $48 in drug and device payments (2025) ·
(818) 265-2264 Dr. Ann J Peters, M.D.Gold River, CA · No drug or device payments recorded (2025) ·
(916) 631-1536 Dr. Margarit Baghdasaryan, FNPGranada Hills, CA · $30 in drug and device payments (2025) · Telehealth ·
(818) 326-8426 Dr. Mark Tambellini, M.D.Granite Bay, CA · No drug or device payments recorded (2025) ·
(916) 761-9399 Dr. Holly Leeds, MDGrass Valley, CA · No drug or device payments recorded (2025) ·
(888) 966-2398 Dr. John Andrew, M.D.Greenbrae, CA · $119 in drug and device payments (2025) ·
(415) 925-1523 Dr. Alvaro Rodriguez, M.D.Half Moon Bay, CA · $27 in drug and device payments (2025) ·
(650) 578-7100 Dr. Evelyn Gomez, MDHanford, CA · $136 in drug and device payments (2025) ·
(559) 537-0192 Dr. Stephan Honda, M.D.Hawthorne, CA · $18 in drug and device payments (2025) ·
(323) 757-2118 Dr. Evelina OlsonHercules, CA · No drug or device payments recorded (2025) ·
(510) 915-0158 Dr. Won Choe, D.OHuntington Beach, CA · $284 in drug and device payments (2025) · Telehealth ·
(714) 841-7271 Dr. George Nelson, MDIndian Wells, CA · No drug or device payments recorded (2025) ·
(760) 674-7001 Dr. Danielle Davidson-mcbeanInglewood, CA · $115 in drug and device payments (2025) · Telehealth ·
(310) 419-3378 Dr. Joseph Pierson, M.D.Inglewood, CA · No drug or device payments recorded (2025) · Telehealth ·
(323) 944-0949 Dr. Marvin White, M.D.Inglewood, CA · No drug or device payments recorded (2025) ·
(310) 419-1067 Dr. Floragrace Surell, M.D.Irvine, CA · No drug or device payments recorded (2025) · Telehealth ·
(949) 557-0720 Common questions
How many Adult Medicine providers are in California?There are 385 Adult Medicine providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Adult Medicine providers in California offer telehealth?Yes. 72 of the 385 Adult Medicine providers in California (about 19%) report offering telehealth services in CMS data.
Which cities in California have the most Adult Medicine providers?Los Angeles (23), San Francisco (20), Sacramento (17) have the highest concentration of Adult Medicine providers in California.
How many Adult Medicine providers in California received drug or device company payments?116 of 385 Adult Medicine providers in California (30%) 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 Adult Medicine Doctors in California work in independent practices or large health systems?Among 180 Adult Medicine Doctors in California enrolled in Medicare, 36% bill through a solo or small practice with fewer than 10 clinicians, 9% through a mid-size group of 10 to 99, and 56% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Adult Medicine Doctors in California work at?According to CMS facility affiliation records, the California hospitals where the most Adult Medicine Doctors hold privileges are Hoag Memorial Hospital Presbyterian in Newport Beach; Northridge Hospital Medical Center in Northridge; Kaiser Foundation Hospital - Sacramento in Sacramento.
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