About
Cheung Tom Leung, MD, FACC brings a rare combination of engineering precision and clinical depth to his Gilroy practice. He earned his Bachelor of Science in Chemical Engineering from the University of Illinois, Champaign, graduating Summa Cum Laude and receiving the Bronze Tablet Award. He went on to earn a Master of Science in Chemical Engineering from the University of Michigan, where he also received the Exxon Fellowship Award. He then completed his Doctorate of Medicine at Washington University School of Medicine in St. Louis in 1984.
Dr. Leung completed his internal medicine residency at St. Luke's Hospital in Chesterfield, Missouri, followed by a cardiology fellowship at Jewish Hospital in St. Louis. He holds board certifications from the American Board of Internal Medicine, the American Board of Internal Medicine Subspecialty Cardiology, the American Board of Clinical Lipidology, and in Cardiovascular Computed Tomography. S. physicians. He is a member of the American College of Cardiology and the American College of Physicians. Dr. Leung is passionate about vascular health and focuses on preventing, detecting early, and reversing disease in his patients. He conducts all visits himself and remains reachable around the clock. He speaks Cantonese and Mandarin in addition to English.
Education & Training
Undergraduate
University of Illinois, Champaign, IL - Bachelor of Science, Chemical Engineering, 1974 (Summa Cum Laude)
Medical School
Washington University School of Medicine, St. Louis, MO - Doctorate of Medicine, 1984
Residency
St. Luke's Hospital, Chesterfield, MO - Internal Medicine, 1985-1987
Fellowship
Jewish Hospital, St. Louis, MO - Cardiology, 1987-1990
Additional Training
University of Michigan, Ann Arbor, MI - Master of Science, Chemical Engineering, 1973
Certifications
Languages
Cantonese, Mandarin
Conditions Treated
Who is Dr. Leung right for?
Dr. Leung is a strong fit for adults who want a primary care physician with deep cardiovascular expertise. Patients managing vascular disease, high cholesterol, or complex cardiac risk factors benefit from his four board certifications. His background in lipidology and cardiovascular CT gives him tools most primary care physicians do not offer. Cantonese and Mandarin speakers will find he can conduct visits in their language. Patients who value direct, around-the-clock physician access and same-day appointments will feel well served here.
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Frequently Asked Questions
Dr. Leung focuses on vascular health, cardiovascular disease, and lipid disorders. He also manages the full spectrum of internal medicine conditions. His certifications in clinical lipidology and cardiovascular computed tomography allow him to address complex cholesterol and cardiac imaging needs within the same practice.
Yes. Dr. Leung holds four board certifications. He is certified by the American Board of Internal Medicine and the American Board of Internal Medicine Subspecialty Cardiology. He also holds certifications from the American Board of Clinical Lipidology and in Cardiovascular Computed Tomography.
Dr. Leung earned his medical degree from Washington University School of Medicine in St. Louis in 1984. He completed his internal medicine residency at St. Luke's Hospital in Chesterfield, Missouri, and his cardiology fellowship at Jewish Hospital in St. Louis.
He does. Dr. Leung earned a Bachelor of Science in Chemical Engineering from the University of Illinois, Champaign, graduating Summa Cum Laude with the Bronze Tablet Award. He then earned a Master of Science in Chemical Engineering from the University of Michigan, where he received the Exxon Fellowship Award. He applies that analytical background to his clinical work.
Dr. Leung speaks English, Cantonese, and Mandarin. Patients who prefer to conduct visits in Cantonese or Mandarin can do so comfortably.
Dr. Leung focuses on preventing, detecting, and reversing vascular disease. He uses his training in cardiovascular CT and clinical lipidology to identify risk early and build individualized plans. He conducts all visits himself so patients work directly with him at every appointment.
Yes. Dr. Leung remains reachable 24 hours a day, seven days a week. Members can contact him directly, not a nurse line or answering service, at any hour.
Yes. Dr. Leung is a Fellow of the American College of Cardiology and a member of the American College of Physicians. These memberships reflect his standing in both cardiovascular medicine and internal medicine.
Doctor profile last updated March 21, 2026