Mary-Ellen Taplin, MD, Find a cancer doctor with Dana Farber's physician directory. Read how to search for a cancer doctor by name for breast cancer, cervical cancer, ovarian cancer, lung cancer, stomach cancer, testicular cancer, prostate cancer, sarcoma, lymphoma, leukemia, brain tumor, melanoma, bladder cancer, blood disorders, skin cancer, colon cancer, and more at Dana-Farber Cancer Institute.