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. Dean Norman, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 657-8440 Dr. Dennis Ehrlich, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 450-5900 Dr. Diane Schneider, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 220-0469 Dr. Emily Venvertloh, DOLa Jolla, CA · $252 in drug and device payments (2025) ·
(858) 534-6299 Dr. Heather Doherty, M.D.La Jolla, CA · $292 in drug and device payments (2025) · Telehealth ·
(858) 554-7226 Dr. James Michelsen, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 554-6158 Dr. Joann Stewart, M.D.La Jolla, CA · $25 in drug and device payments (2025) ·
(858) 554-6158 Dr. Katrina Deleon, MDLa Jolla, CA · $182 in drug and device payments (2025) ·
(858) 554-6158 Dr. Man Vu, M.D.La Jolla, CA · $25 in drug and device payments (2025) ·
(858) 554-6158 Dr. Marjan Etesami, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 554-6158 Dr. Michael Song, MD, PHDLa Jolla, CA · $120 in drug and device payments (2025) · Telehealth ·
(858) 554-3200 Dr. Omid Salaami, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 554-6158 Dr. Ramandeep Singh, MDLa Jolla, CA · $25 in drug and device payments (2025) · Telehealth ·
(858) 554-6158 Dr. Rimmy Mann, MDLa Jolla, CA · $25 in drug and device payments (2025) ·
(858) 554-6158 Dr. Robert Demonte, M.D.La Jolla, CA · No drug or device payments recorded (2025) ·
(858) 554-6158 Dr. Robert Tickes, MDLa Jolla, CA · No drug or device payments recorded (2025) ·
(858) 554-3200 Dr. Samuel Zeng, MD, PHDLa Jolla, CA · $91 in drug and device payments (2025) ·
(858) 554-3200 Dr. Yuichiro Sato, DOLa Jolla, CA · $25 in drug and device payments (2025) ·
(858) 554-6158 Dr. Majid Shahbaz, M.D.La Mesa, CA · $1,519 in drug and device payments (2025) · Telehealth ·
(619) 583-1174 Dr. Kanagaratnam Sivalingam, M.D.Lancaster, CA · $352 in drug and device payments (2025) · Telehealth ·
(661) 726-3724 Dr. Kyriacos Charalambides, M.D.Lancaster, CA · No drug or device payments recorded (2025) ·
(661) 942-2391 Dr. Sara Dhamija, M.D.Lancaster, CA · No drug or device payments recorded (2025) ·
(661) 945-5984 Dr. Vincent Ho, M.D.Lancaster, CA · $3,935 in drug and device payments (2025) · Telehealth ·
(661) 945-5984 Dr. Donna Heinle, M.D.Livermore, CA · No drug or device payments recorded (2025) ·
(925) 373-4700 Dr. Sumangala Kote, M.D.Livermore, CA · No drug or device payments recorded (2025) ·
(925) 373-4700 Dr. Cesar Libanati, M.D.Loma Linda, CA · No drug or device payments recorded (2025) ·
(909) 796-8470 Dr. James Larsen, M.D.Loma Linda, CA · No drug or device payments recorded (2025) ·
(909) 558-2191 Dr. Katalin Danji, M.D.Loma Linda, CA · No drug or device payments recorded (2025) ·
(909) 558-6600 Dr. Malwinder Multani, M.D.Loma Linda, CA · No drug or device payments recorded (2025) ·
(909) 583-6094 Dr. Margaret Griffin, M.D.Loma Linda, CA · No drug or device payments recorded (2025) ·
(909) 825-7084 Dr. Russell Hoxie, M.D.Loma Linda, CA · No drug or device payments recorded (2025) ·
(909) 825-7084 Dr. Vishvanath Date, M.D.Loma Linda, CA · No drug or device payments recorded (2025) ·
(909) 825-7084 Dr. Andrew Ralston, M.D.Long Beach, CA · No drug or device payments recorded (2025) ·
(562) 426-3333 Dr. Karen Josephson, M.D.Long Beach, CA · No drug or device payments recorded (2025) ·
(323) 309-0961 Dr. Mark Levinstein, M.D.Long Beach, CA · No drug or device payments recorded (2025) ·
(562) 826-5869 Dr. Richard Nghiem, M.D.Long Beach, CA · No drug or device payments recorded (2025) ·
(562) 826-8000 Dr. San San Wong-lee, M.DLong Beach, CA · No drug or device payments recorded (2025) ·
(562) 826-8000 Dr. Timothy Schwab, M.D.Long Beach, CA · No drug or device payments recorded (2025) ·
(562) 989-8316 Dr. Jacquelyn Vander Wall, M.D.Los Alamitos, CA · No drug or device payments recorded (2025) · Telehealth ·
(702) 579-3203 Dr. Alejandra Sanchez Lopez, M.D.Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(310) 794-1195 Dr. Alia Khan-hudson, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 478-3711 Dr. Andrew Chan, MDLos Angeles, CA · $104 in drug and device payments (2025) ·
(323) 226-1100 Dr. Angela Moore-hodgeLos Angeles, CA · $125 in drug and device payments (2025) · Telehealth ·
(213) 368-1654 Dr. Arman Hekmati, M.D.Los Angeles, CA · $2,465 in drug and device payments (2025) · Telehealth ·
(323) 651-4320 Dr. Arun Karlamangla, MDLos Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(310) 825-8253 Dr. Azmy Ghaly, MEDICAL DOCTORLos Angeles, CA · $577 in drug and device payments (2025) ·
(323) 307-0800 Dr. Benjamin Seligman, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 206-8272 Dr. Blanche Watson, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(323) 634-3850 Dr. Brandon Koretz, MDLos Angeles, CA · No drug or device payments recorded (2025) · Telehealth ·
(310) 206-6232 Dr. Caitlyn Kuwata, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(323) 409-3638 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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