HealthcareDiscovery.AI / Doctors / California / Duarte / Internal Medicine

Internal Medicine in Duarte, California

Data updated monthly · Last refresh September 2026

13 Internal Medicine providers practice in Duarte. Listings are drawn from federal public records and are not endorsements.

Internal Medicine providers in Duarte

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. Elizabeth Smalley, MD
Duarte, CA · No drug or device payments recorded (2025) · (626) 358-8901
Dr. Gilbert Walton, MD
Duarte, CA · No drug or device payments recorded (2025) · (626) 358-0269
Dr. Houman Badrzadeh, DO
Duarte, CA · No drug or device payments recorded (2025) · (800) 826-4673
Dr. Indravadan Shah, MD
Duarte, CA · No drug or device payments recorded (2025) · (626) 358-2576
Dr. Karam Ashouri, MD
Duarte, CA · $131 in drug and device payments (2025) · (800) 826-4673
Dr. Koral Shah, MD
Duarte, CA · $345 in drug and device payments (2025) · (800) 826-4673
Dr. Mohammed Siddiqui, MD
Duarte, CA · No drug or device payments recorded (2025) · (626) 256-4673
Dr. Razmik Thomassian, M.D.
Duarte, CA · No drug or device payments recorded (2025) · (877) 254-4496
Dr. Stan Mathioulakis, MD
Duarte, CA · $49 in drug and device payments (2025) · (626) 358-3204
Dr. Tomoko Tagawa, M.D.
Duarte, CA · No drug or device payments recorded (2025) · Telehealth · (626) 471-9200
Dr. Tyler Seto, M.D.
Duarte, CA · No drug or device payments recorded (2025) · (626) 256-4673
Dr. Ulin Sargeant, M.D., MPH
Duarte, CA · No drug or device payments recorded (2025) · Telehealth · (877) 254-4496
Dr. Yu Wang, MD
Duarte, CA · No drug or device payments recorded (2025) · (626) 256-4673

Conditions Internal Medicine providers in Duarte, 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 Duarte, California?

There are 13 Internal Medicine providers with active NPI records practicing in Duarte, according to federal NPPES data refreshed monthly.

What conditions do Internal Medicine providers in Duarte treat?

Internal Medicine providers in Duarte 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 Duarte 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.