HealthcareDiscovery.AI / Doctors / California / Rancho Santa Margarita / Internal Medicine

Internal Medicine in Rancho Santa Margarita, California

Data updated monthly · Last refresh September 2026

6 Internal Medicine providers practice in Rancho Santa Margarita. Listings are drawn from federal public records and are not endorsements.

Internal Medicine providers in Rancho Santa Margarita

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. Deepak Patel, MD
Rancho Santa Margarita, CA · $18 in drug and device payments (2025) · (949) 577-3937
Dr. Gwendolyn Gore, MD
Rancho Santa Margarita, CA · No drug or device payments recorded (2025) · Telehealth · (949) 459-9968
Dr. Iwan Nyotowidjojo, M.D.
Rancho Santa Margarita, CA · $55 in drug and device payments (2025) · (949) 459-9968
Dr. Lilian Tran, MD
Rancho Santa Margarita, CA · $159 in drug and device payments (2025) · Telehealth · (949) 459-9968
Dr. Siamak Zamani, M.D.
Rancho Santa Margarita, CA · No drug or device payments recorded (2025) · (949) 589-9114
Dr. Sridhar Kundula, M.D.
Rancho Santa Margarita, CA · No drug or device payments recorded (2025) · (949) 459-4820

Conditions Internal Medicine providers in Rancho Santa Margarita, California commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Internal Medicine providers are in Rancho Santa Margarita, California?

There are 6 Internal Medicine providers with active NPI records practicing in Rancho Santa Margarita, according to federal NPPES data refreshed monthly.

What conditions do Internal Medicine providers in Rancho Santa Margarita treat?

Internal Medicine providers in Rancho Santa Margarita commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management and related conditions. Individual practices vary, so confirm with the provider before booking.

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 Rancho Santa Margarita Internal Medicine across California

Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.