About
D. earned dual degrees in Biology and Psychology from the University of Virginia before completing medical school at the University of Virginia School of Medicine. He then trained in Primary Care Internal Medicine at UC Davis Medical Center in Sacramento, staying an additional year as Chief Resident to teach incoming physicians.
Before relocating to San Diego, Dr. Sun spent four months volunteering at a hospital in Quito, Ecuador, living with a local family and learning Spanish. He practiced at Kaiser Permanente San Diego for two years before launching his private practice at Scripps La Jolla in 2002. He holds board certification from the American Board of Internal Medicine and serves on the Board of Directors of the San Diego County Medical Society. California has also certified him as a Qualified Medical Examiner. Dr. Sun holds hospital privileges at Scripps Memorial La Jolla and speaks conversational Spanish and Mandarin Chinese. He is passionate about evidence-based medicine, patient education, and helping each person take an informed role in their own health decisions. He treats conditions including diabetes, hypertension, high cholesterol, hepatitis C, osteoporosis, menopause, and obesity. He belongs to the American College of Physicians, the California Medical Association, and the American Medical Association.
Education & Training
Undergraduate
University of Virginia, College of Arts and Sciences, B.S. Biology and Psychology
Medical School
University of Virginia School of Medicine
Residency
Primary Care Internal Medicine, UC Davis Medical Center
Additional Training
Chief Residency, UC Davis Medical Center
Certifications
Languages
English, Spanish, Mandarin Chinese
Conditions Treated
Who is Dr. Sun right for?
Dr. Sun is a strong fit for adults seeking a primary care physician who coordinates their full spectrum of care. Patients managing chronic conditions such as diabetes, hypertension, high cholesterol, or osteoporosis benefit from his thorough, evidence-based approach. He works well with patients who want to understand the reasoning behind their treatment plan and take an active role in decisions. Those who value a physician willing to spend genuine time on each visit and navigate specialist relationships will find his practice a good match.
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Frequently Asked Questions
Dr. Sun treats a broad range of internal medicine conditions. These include diabetes, hypertension, high cholesterol, hepatitis C, osteoporosis, menopause, and obesity. He also handles preventive wellness, cancer screenings, and ongoing chronic disease management.
Dr. Sun believes sound clinical decisions require good data and solid evidence from medical literature. He explains that evidence to patients and helps them decide on their own health and treatment plans. He does not dictate a path but remains open to alternative approaches when patients want to explore them.
Dr. Sun earned his medical degree at the University of Virginia School of Medicine. He completed his residency in Primary Care Internal Medicine at UC Davis Medical Center in Sacramento, then stayed an additional year as Chief Resident to teach.
Yes. Dr. Sun holds board certification from the American Board of Internal Medicine. He also holds a California State Medical License and a Qualified Medical Examiner certification from the State of California.
Dr. Sun functions as the central coordinator of each patient's full medical team. He manages referrals, communicates between specialists, and ensures that care from different providers fits together into a coherent plan. Patients rely on him as the primary point of contact across all their medical relationships.
Yes. Dr. Sun holds hospital privileges at Scripps Memorial La Jolla, which sits near his office on the Scripps La Jolla campus.
Dr. Sun speaks conversational Spanish and Mandarin Chinese in addition to English. He developed his Spanish during four months volunteering at a hospital in Quito, Ecuador before moving to San Diego.
Yes. The State of California has certified Dr. Sun as a Qualified Medical Examiner. The practice lists Qualified Medical Examination among its services.
Dr. Sun is a member of the American College of Physicians, the California Medical Association, and the American Medical Association. He also serves on the Board of Directors of the San Diego County Medical Society.
Dr. Sun launched his private practice at Scripps La Jolla in 2002. Before that, he spent two years at Kaiser Permanente San Diego. He has practiced medicine in the San Diego area for more than two decades.
Doctor profile last updated June 9, 2026