Marisa Weiss, M.D.

Director of Breast Health Outreach & Breast Radiation Oncology, Lankenau Medical Center; President and Founder of

Dr. Marisa Weiss is President and Founder of, the world’s most utilized online resource for expertise on breast health and breast cancer.

A graduate of the University of Pennsylvania School of Medicine for college, medical school and specialty training, Dr. Weiss is a breast oncologist in practice for over 20 years. Currently she is Director of Breast Radiation Oncology and Director of Breast Health Outreach at Lankenau Medical Center in Wynnewood, Pennsylvania.

She is author of the Random House books, Taking Care of Your “Girls:” A breast health guide for girls, teens and in-betweens, Living Well Beyond Breast Cancer and Seven Minutes: How to get the most from your doctor visit.

Dr. Weiss frequently serves as a medical expert for print and broadcast media, including the New York Times, L.A. Times, Wall Street Journal; NPR’s Fresh Air, Good Morning America, CNN, and the Dr. Oz Show.