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

Internal Medicine in Downey, California

Data updated monthly · Last refresh September 2026

114 Internal Medicine providers practice in Downey, and 32% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Internal Medicine providers in Downey

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. Stephanie Chen, MD
Downey, CA · No drug or device payments recorded (2025) · (562) 401-7611
Dr. Stephen Chen, M.D.
Downey, CA · $17 in drug and device payments (2025) · (562) 657-9000
Dr. Susie Kim, M.D.
Downey, CA · $36 in drug and device payments (2025) · (562) 657-9575
Dr. Tiffany Cushing, MD
Downey, CA · No drug or device payments recorded (2025) · Telehealth · (833) 574-2273
Dr. Triyug Malla Thakuri
Downey, CA · $17 in drug and device payments (2025) · (562) 904-5000
Dr. Varneet Sandhu, M.D
Downey, CA · No drug or device payments recorded (2025) · (701) 579-3203
Dr. Veda Ramesh, M.D.
Downey, CA · No drug or device payments recorded (2025) · (562) 657-9566
Dr. Victor Weng, D.O.
Downey, CA · No drug or device payments recorded (2025) · (562) 869-4497
Dr. Vinod Patel, M.D.
Downey, CA · $21 in drug and device payments (2025) · (562) 862-2775
Dr. Vinod Valluri
Downey, CA · No drug or device payments recorded (2025) · (562) 658-3660
Dr. Wang Ji, M.D.
Downey, CA · $19 in drug and device payments (2025) · (562) 862-3684
Dr. William Sim, MD
Downey, CA · $1,982 in drug and device payments (2025) · Telehealth · (562) 806-0874
Dr. Yaga Szlachcic, M.D.
Downey, CA · No drug or device payments recorded (2025) · (562) 803-0124
Dr. Ying Ting Lau
Downey, CA · No drug or device payments recorded (2025) · (562) 657-9000

Conditions Internal Medicine providers in Downey, 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 Downey, California?

There are 114 Internal Medicine providers with active NPI records practicing in Downey, according to federal NPPES data refreshed monthly.

How many Internal Medicine providers in Downey received drug or device company payments?

37 of 114 (32%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Internal Medicine providers in Downey treat?

Internal Medicine providers in Downey 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 Downey 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.