Geriatric Medicine Doctors (Internal Medicine) in California
Data updated monthly · Last refresh October 2026
534 Geriatric Medicine (Internal Medicine) providers practice in California, including 144 (27%) 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.
534providers
144telehealth
Los Angelestop city
Geriatric Medicine (Internal Medicine) by city in California
Choose a city to see providers there.
Geriatric Medicine (Internal 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. Sarah Gelberd, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(213) 351-5268 Dr. Seung Ho Choi, M.D.Los Angeles, CA · $386 in drug and device payments (2025) · Telehealth ·
(213) 207-5040 Dr. Seung Kim, M.D.Los Angeles, CA · $37 in drug and device payments (2025) · Telehealth ·
(213) 385-5500 Dr. Sharon Chow, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 445-5999 Dr. Shawkat Dhanani, MD, MPHLos Angeles, CA · $21 in drug and device payments (2025) ·
(310) 268-3036 Dr. Shinya Ishii, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 825-8253 Dr. Steven Castle, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 268-4671 Dr. Susan Charette, MDLos Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(310) 206-8272 Dr. Susan Leonard, M.D.Los Angeles, CA · $35 in drug and device payments (2025) · Telehealth ·
(310) 206-8272 Dr. Sylvia Carlisle, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 628-6500 Dr. Tomonao Hashimoto, MDLos Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(310) 206-8272 Dr. Valerie Wong, MDLos Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(310) 206-8272 Dr. Victor Oranusi, M.D.Los Angeles, CA · $96 in drug and device payments (2025) ·
(323) 846-4312 Dr. Vinod Patel, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(562) 427-5363 Dr. Xinyu Ji, MDLos Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(310) 206-8272 Dr. Zaldy Tan, M.D.Los Angeles, CA · $13 in drug and device payments (2025) · Telehealth ·
(310) 423-6472 Dr. Linda Lu, M.D.Los Gatos, CA · No drug or device payments recorded (2025) ·
(408) 358-1841 Dr. Daniel Lively, MDMartinez, CA · No drug or device payments recorded (2025) ·
(925) 370-5110 Dr. Sophia Chen, D.O.Martinez, CA · $45 in drug and device payments (2025) ·
(925) 370-5200 Dr. John Peters, M.D.Mather, CA · No drug or device payments recorded (2025) ·
(916) 843-7153 Dr. Randall Goethals, M.D.Mather, CA · No drug or device payments recorded (2025) ·
(916) 366-5366 Dr. Sophia Kim, M.D.Menlo Park, CA · No drug or device payments recorded (2025) ·
(650) 493-5000 Dr. Hayka Hovsepyan, MDMission Hills, CA · No drug or device payments recorded (2025) ·
(818) 365-8553 Dr. Christopher Nguyen, MDMission Viejo, CA · $664 in drug and device payments (2025) · Telehealth ·
(949) 583-1600 Dr. Garfield Pickell, M. D.Modesto, CA · No drug or device payments recorded (2025) · Telehealth ·
(209) 578-6357 Dr. Vijay Dhawan, M.D.Montebello, CA · No drug or device payments recorded (2025) ·
(323) 721-9411 Dr. Shehab Saddy, MDMonterey, CA · $450 in drug and device payments (2025) · Telehealth ·
(831) 642-9800 Dr. Ryan Uyan, MDMonterey Park, CA · No drug or device payments recorded (2025) ·
(626) 573-2222 Dr. William Strauss, MDMoraga, CA · No drug or device payments recorded (2025) ·
(925) 376-5161 Dr. Sindey Chung, MDMountain View, CA · No drug or device payments recorded (2025) ·
(650) 903-3000 Dr. Tanu Garg, MDMountain View, CA · $20 in drug and device payments (2025) ·
(650) 934-7808 Dr. Vibha Iyengar, M.D, MPHMountain View, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 934-7808 Dr. David Perts, M.D.Napa, CA · No drug or device payments recorded (2025) ·
(707) 253-5000 Dr. Ira Braverman, MDNational City, CA · $339 in drug and device payments (2025) · Telehealth ·
(619) 267-8181 Dr. Troy Niguidula, MDNational City, CA · $475 in drug and device payments (2025) · Telehealth ·
(619) 267-8181 Dr. Cathy Alessi, M.D.North Hills, CA · No drug or device payments recorded (2025) ·
(818) 895-9311 Dr. Constance Fung, MDNorth Hills, CA · No drug or device payments recorded (2025) ·
(310) 478-3711 Dr. Diane SuzukiNorth Hills, CA · No drug or device payments recorded (2025) ·
(818) 891-7711 Dr. Sikander Kajani, M.D.Northridge, CA · $567 in drug and device payments (2025) · Telehealth ·
(818) 993-6660 Dr. Prode Pascual, M.DNorwalk, CA · No drug or device payments recorded (2025) · Telehealth ·
(562) 508-7123 Dr. Ali Torbati, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 914-0759 Dr. Anuradha Shankar, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 752-1000 Dr. Catherine Buchanan, M.D.Oakland, CA · No drug or device payments recorded (2025) ·
(510) 891-8519 Dr. Clara ChenOakland, CA · No drug or device payments recorded (2025) ·
(510) 318-5800 Dr. Evan Seevak, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 437-4323 Dr. Fiona Wilmot, M.D.Oakland, CA · No drug or device payments recorded (2025) ·
(510) 433-1160 Dr. James Mittelberger, M.D.Oakland, CA · No drug or device payments recorded (2025) ·
(510) 387-0585 Dr. Julie Sandoval-perry, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 752-1000 Dr. Mala KrishnamoorthyOakland, CA · No drug or device payments recorded (2025) ·
(774) 232-1549 Common questions
How many Geriatric Medicine (Internal Medicine) providers are in California?There are 534 Geriatric Medicine (Internal Medicine) providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Geriatric Medicine (Internal Medicine) providers in California offer telehealth?Yes. 144 of the 534 Geriatric Medicine (Internal Medicine) providers in California (about 27%) report offering telehealth services in CMS data.
Which cities in California have the most Geriatric Medicine (Internal Medicine) providers?Los Angeles (77), San Francisco (58), San Diego (38) have the highest concentration of Geriatric Medicine (Internal Medicine) providers in California.
How many Geriatric Medicine (Internal Medicine) providers in California received drug or device company payments?129 of 534 Geriatric Medicine (Internal Medicine) providers in California (24%) 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 Geriatric Medicine Doctors (Internal Medicine) in California work in independent practices or large health systems?Among 266 Geriatric Medicine Doctors (Internal Medicine) in California enrolled in Medicare, 30% bill through a solo or small practice with fewer than 10 clinicians, 12% through a mid-size group of 10 to 99, and 58% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Geriatric Medicine Doctors (Internal Medicine) in California work at?According to CMS facility affiliation records, the California hospitals where the most Geriatric Medicine Doctors (Internal Medicine) hold privileges are Ronald Reagan UCLA Medical Center in Los Angeles; Santa Monica - UCLA Med Ctr & Orthopaedic Hospital in Santa Monica; UCSF Medical Center in San Francisco.
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