Internal Medicine in Diamond Bar, California
Data updated monthly · Last refresh September 2026
10 Internal Medicine providers practice in Diamond Bar. Listings are drawn from federal public records and are not endorsements.
Internal Medicine providers in Diamond Bar
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. Chandan Gowda, DODiamond Bar, CA · No drug or device payments recorded (2025) ·
(909) 856-0883 Dr. Chengcong Wu, M.D.Diamond Bar, CA · No drug or device payments recorded (2025) ·
(909) 612-1191 Dr. Claire Daniel, MDDiamond Bar, CA · No drug or device payments recorded (2025) ·
(916) 602-9801 Dr. Edwin Chuong, M.D.Diamond Bar, CA · No drug or device payments recorded (2025) ·
(626) 388-2319 Dr. Lorindha Argudo, MDDiamond Bar, CA · No drug or device payments recorded (2025) · Telehealth ·
(909) 861-2675 Dr. Manish Mehta, M.D.Diamond Bar, CA · No drug or device payments recorded (2025) ·
(909) 979-3162 Dr. Michael Kwok, M.D.Diamond Bar, CA · No drug or device payments recorded (2025) ·
(909) 594-1848 Dr. Phillip Wunder, D.O.Diamond Bar, CA · No drug or device payments recorded (2025) ·
(909) 860-8300 Dr. Steve Chan, MDDiamond Bar, CA · $27 in drug and device payments (2025) ·
(909) 612-5835 Dr. Yuh-huey Wang, MDDiamond Bar, CA · $259 in drug and device payments (2025) ·
(909) 612-5835 Conditions Internal Medicine providers in Diamond Bar, 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.
- High blood pressure
- Type 2 diabetes
- High cholesterol
- Preventive care
- Chronic disease management
Common questions
How many Internal Medicine providers are in Diamond Bar, California?There are 10 Internal Medicine providers with active NPI records practicing in Diamond Bar, according to federal NPPES data refreshed monthly.
What conditions do Internal Medicine providers in Diamond Bar treat?Internal Medicine providers in Diamond Bar 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 Diamond Bar Internal Medicine across California
