Dr. Chang is board certified in internal medicine, medical oncology and hematology. His special interests include benign hematology, hemostasis and thrombosis, breast cancer, lung cancer, lymphoma, multiple myeloma, colon and rectal cancer, head and neck cancer and myelodysplasia.

Richard S. Chang, MD is a reputable cardiologist located in Allentown, PA. Dr. Chang specializes in providing exceptional cardiac care to patients in the region, offering expert diagnosis and personalized treatment plans to promote heart health and well-being. With a commitment to excellence and a compassionate approach, patients can trust Dr. Chang for top-notch cardiology services that prioritize their overall... Read More about Richard S. Chang, MD

Richard Chang, MD, MPH is a Rehabilitation And Physical Medicine provider with Mount Sinai Health System, treating patients in the New York area. Dr. Chang is committed to compassionate, coordinated care that supports patients throughout the diverse communities we serve.

For ongoing updates and information about COVID-19, including how to access care, please visit the John Muir Health website.

For ongoing updates and information about COVID-19, including how to access care, please visit the John Muir Health website.

Richard Chang, MD, MPH is a Rehabilitation And Physical Medicine provider with Mount Sinai Health System, treating patients in the Brooklyn area. Dr. Chang is committed to compassionate, coordinated care that supports patients throughout the diverse communities we serve.