HealthcareDiscovery.AI / Doctors / California / Hacienda Heights / Internal Medicine

Internal Medicine in Hacienda Heights, California

Data updated monthly · Last refresh September 2026

10 Internal Medicine providers practice in Hacienda Heights. Listings are drawn from federal public records and are not endorsements.

Internal Medicine providers in Hacienda Heights

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. Anthony Chen, M.D.
Hacienda Heights, CA · $19 in drug and device payments (2025) · (626) 912-2682
Dr. David Aron, MD
Hacienda Heights, CA · No drug or device payments recorded (2025) · (626) 968-0547
Dr. Edmund Foo, M.D.
Hacienda Heights, CA · No drug or device payments recorded (2025) · (626) 913-2383
Dr. Hung-chuen Yeung, M.D.
Hacienda Heights, CA · No drug or device payments recorded (2025) · (626) 968-2442
Dr. Jaw-huei Chen, MD
Hacienda Heights, CA · No drug or device payments recorded (2025) · (626) 964-2880
Dr. Ray Hsiao, MD
Hacienda Heights, CA · $2,437 in drug and device payments (2025) · Telehealth · (626) 854-7866
Dr. Ron Gu, MD
Hacienda Heights, CA · $347 in drug and device payments (2025) · (626) 964-2880
Dr. Show Shan Cherng, M.D.
Hacienda Heights, CA · No drug or device payments recorded (2025) · (626) 913-3661
Dr. Wendy Gu, M.D.
Hacienda Heights, CA · $1,648 in drug and device payments (2025) · Telehealth · (626) 964-2880
Dr. William Tzeng, MD
Hacienda Heights, CA · $1,226 in drug and device payments (2025) · Telehealth · (626) 965-8202

Conditions Internal Medicine providers in Hacienda Heights, 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 Hacienda Heights, California?

There are 10 Internal Medicine providers with active NPI records practicing in Hacienda Heights, according to federal NPPES data refreshed monthly.

What conditions do Internal Medicine providers in Hacienda Heights treat?

Internal Medicine providers in Hacienda Heights 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 Hacienda Heights 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.