Geriatric Medicine (Internal Medicine) in Las Vegas, Nevada
Data updated monthly · Last refresh September 2026
15 Geriatric Medicine (Internal Medicine) providers practice in Las Vegas. Listings are drawn from federal public records and are not endorsements.
Geriatric Medicine (Internal Medicine) providers in Las Vegas
Listed alphabetically. 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. Ajay Nellutla, M.D.Las Vegas, NV · $40 in drug and device payments (2025) ·
(702) 649-8009 Dr. Clarence Grim, M.D.Las Vegas, NV · No drug or device payments recorded (2025) ·
(414) 916-0841 Dr. Ji Yoo, M.D.Las Vegas, NV · $24 in drug and device payments (2025) · Telehealth ·
(702) 671-5060 Dr. Leonardo Gan-lim, M.D.Las Vegas, NV · $687 in drug and device payments (2025) · Telehealth ·
(702) 805-2435 Dr. Mark Zimmerman, M.D.Las Vegas, NV · No drug or device payments recorded (2025) ·
(702) 489-5120 Dr. May Khin, MDLas Vegas, NV · No drug or device payments recorded (2025) ·
(702) 671-6437 Dr. Mike Jeong, DOLas Vegas, NV · No drug or device payments recorded (2025) ·
(702) 304-2144 Dr. Orania Tigaieru, M.D.Las Vegas, NV · No drug or device payments recorded (2025) ·
(702) 791-9000 Dr. Pengfeng Jin, MDLas Vegas, NV · No drug or device payments recorded (2025) ·
(725) 325-4848 Dr. Roland Jayson Pua, MDLas Vegas, NV · $43 in drug and device payments (2025) ·
(702) 638-7705 Dr. Shanna Marie Baltar, DOLas Vegas, NV · No drug or device payments recorded (2025) ·
(702) 877-8600 Dr. Shawn Mcgivney, M.D.Las Vegas, NV · No drug or device payments recorded (2025) ·
(775) 828-9435 Dr. Sophie Chwa, M.D.Las Vegas, NV · No drug or device payments recorded (2025) ·
(626) 864-9105 Dr. Syed Hussain, MDLas Vegas, NV · $158 in drug and device payments (2025) · Telehealth ·
(702) 734-4377 Dr. Vincent Chu, MDLas Vegas, NV · No drug or device payments recorded (2025) ·
(702) 791-9040 Common questions
How many Geriatric Medicine (Internal Medicine) providers are in Las Vegas, Nevada?There are 15 Geriatric Medicine (Internal Medicine) providers with active NPI records practicing in Las Vegas, according to federal NPPES data refreshed monthly.
Where does this data come from?Provider records 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.
All specialties in Las Vegas Geriatric Medicine (Internal Medicine) across Nevada