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. Shehryar Mahmood, MDRancho Mirage, CA · $380 in drug and device payments (2025) · Telehealth ·
(760) 202-0686 Dr. Deborah Rightmier, MDRancho Palos Verdes, CA · No drug or device payments recorded (2025) ·
(310) 755-8590 Dr. Nena Perry, M.D.Redding, CA · No drug or device payments recorded (2025) ·
(530) 225-7800 Dr. Victoria Rains, M.D.Redlands, CA · No drug or device payments recorded (2025) ·
(909) 335-3759 Dr. Neal Snyder, MDRedwood City, CA · No drug or device payments recorded (2025) ·
(650) 299-2000 Dr. Nallini Gnanadesigan, M.D.Reseda, CA · No drug or device payments recorded (2025) ·
(818) 757-4447 Dr. Rick Smith, M.D.Reseda, CA · No drug or device payments recorded (2025) ·
(818) 757-4447 Dr. Alia Tuqan, MDRiverside, CA · No drug or device payments recorded (2025) · Telehealth ·
(844) 827-8000 Dr. Marlon Minera, MDRiverside, CA · No drug or device payments recorded (2025) ·
(951) 476-3239 Dr. Rashid Altafi, M.D.Riverside, CA · No drug or device payments recorded (2025) ·
(559) 307-6030 Dr. Dan Tran, M.D.Rosemead, CA · $1,385 in drug and device payments (2025) ·
(626) 307-1050 Dr. Beatriz Marron, MDSacramento, CA · No drug or device payments recorded (2025) · Telehealth ·
(916) 734-2737 Dr. Bettina Chrysofakis-baiduc, M.D.Sacramento, CA · No drug or device payments recorded (2025) ·
(916) 733-3301 Dr. Christine Rozance, M.D.Sacramento, CA · No drug or device payments recorded (2025) ·
(916) 446-3100 Dr. Elliot Mazer, M.D.Sacramento, CA · No drug or device payments recorded (2025) ·
(916) 424-8412 Dr. Jae Whan Keum, MDSacramento, CA · No drug or device payments recorded (2025) · Telehealth ·
(916) 733-3460 Dr. Janice Grandi, MDSacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-2177 Dr. John Robbins, M.D.Sacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-7004 Dr. Linda Morrow, M.D.Sacramento, CA · No drug or device payments recorded (2025) ·
(916) 733-1788 Dr. Michael Gunther Maher, MDSacramento, CA · No drug or device payments recorded (2025) ·
(916) 973-5000 Dr. Myo Shin, MDSacramento, CA · $150 in drug and device payments (2025) ·
(916) 973-5000 Dr. Nikita Gill, MDSacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-2011 Dr. Phanikumar Vadarevu, M.D.Sacramento, CA · No drug or device payments recorded (2025) ·
(916) 973-5000 Dr. Rebecca Boxer, MDSacramento, CA · No drug or device payments recorded (2025) · Telehealth ·
(916) 734-8608 Dr. Roy Berry, MDSacramento, CA · No drug or device payments recorded (2025) ·
(916) 973-5000 Dr. Shivani Bhutani, MDSacramento, CA · $114 in drug and device payments (2025) · Telehealth ·
(916) 681-6000 Dr. Silvia Arizaga, MDSacramento, CA · $99 in drug and device payments (2025) · Telehealth ·
(916) 733-3333 Dr. Sorour Rahgoshay, MDSacramento, CA · No drug or device payments recorded (2025) · Telehealth ·
(916) 733-3460 Dr. William Seavey, MDSacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-5496 Dr. Mohammad Ranginwala, MDSan Bruno, CA · No drug or device payments recorded (2025) ·
(650) 742-2000 Dr. Aboo Nasar, M.D.San Diego, CA · No drug or device payments recorded (2025) · Telehealth ·
(858) 385-1419 Dr. Alison Moore, MDSan Diego, CA · No drug or device payments recorded (2025) · Telehealth ·
(800) 926-8273 Dr. Angelica Suarez-ramirez, MDSan Diego, CA · No drug or device payments recorded (2025) · Telehealth ·
(800) 926-8273 Dr. Anjoulie PujjiSan Diego, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Arnold GassSan Diego, CA · No drug or device payments recorded (2025) ·
(858) 552-7402 Dr. Belicia Ding, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Cary Bayne, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(619) 260-6300 Dr. Colin Thomas, MD, MPHSan Diego, CA · No drug or device payments recorded (2025) ·
(858) 552-8585 Dr. Danilo Tan, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(858) 373-2444 Dr. Derek Hauser, D.O.San Diego, CA · No drug or device payments recorded (2025) ·
(661) 317-7032 Dr. Eddie Lam, MD, MPHSan Diego, CA · $23 in drug and device payments (2025) · Telehealth ·
(800) 926-8273 Dr. Elizabeth Menkin, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(619) 688-1600 Dr. Eric Emont, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(619) 528-1245 Dr. Gita Mehta, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(619) 471-9278 Dr. Gregory Antkowiak, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(619) 299-1419 Dr. Hooman Tabarsi, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(619) 906-4623 Dr. Ian Neel, M.D.San Diego, CA · No drug or device payments recorded (2025) · Telehealth ·
(619) 543-7832 Dr. Jaeyoun Choi, MDSan Diego, CA · No drug or device payments recorded (2025) · Telehealth ·
(800) 926-8273 Dr. Jairo Romero, M.D.San Diego, CA · $123 in drug and device payments (2025) ·
(858) 249-2500 Dr. Jennifer Freimund, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(858) 552-7475 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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