Dr. Roger S Chang, MD

Dr. Roger Chang is an internal medicine physician who specializes in hospital medicine, bringing 25 years of experience to his practice. He earned his medical degree from Northwestern University Feinberg School of Medicine and has built extensive expertise in managing complex medical conditions for hospitalized patients. His dual specialization allows him to provide comprehensive care both in outpatient settings and during hospital stays. Dr. Chang speaks English and has developed particular proficiency in treating patients with diabetes and high blood pressure over his quarter-century career.

Dr. Chang practices at multiple locations throughout Orange, California, including Saint Joseph Hospital Orange, UCI Medical Center, and Chapman Medical Center. His clinical focus centers on managing type 2 diabetes and hypertension, including serious cases like hypertensive emergencies that require immediate attention. He regularly performs essential diagnostic tests such as comprehensive blood …work and complete blood counts to monitor patient health and guide treatment decisions. This thorough approach helps him deliver personalized care for patients with chronic conditions who need ongoing medical management.