Winston Tan, M.D., is a hematologist and oncologist at Mayo Clinic Comprehensive Cancer Center in Jacksonville, Florida. Dr. Tan treats cancers and conditions including bladder cancer, breast cancer, kidney cancer, melanoma and prostate cancer. Dr. Tan has a special interest in advancing cancer treatment through clinical trials, drug development and the latest scientific research. Mayo Clinic Comprehensive Cancer Center is a National Cancer Institute (NCI)-designated comprehensive cancer center.