Dr. Wallace P. Chan is an oncologist in Greenvale, New York and is affiliated with multiple hospitals in the area, including Mercy Hospital-Rockville Centre and St. Catherine of Siena Hospital. He received his medical degree from University Institute of Medicine 1 and has been in practice for more than 20 years. Dr. Wallace P. Chan has expertise in treating lung cancer, lymphoma, small intestine/colorectal cancer, among other conditions - see all areas of expertise. Dr. Wallace P. Chan accepts Medicare, Aetna, Humana, Cigna, Blue Cross, United Healthcare - see other insurance plans accepted.