Marisa C. Weiss, MD, is chief medical officer and founder of Breastcancer.org, the leading patient-focused resource for breast health and breast cancer — reaching 256 million people globally since 2000. Dr. Weiss currently practices at Lankenau Medical Center where she serves as director of breast radiation oncology and director of breast health outreach. A breast oncologist with more than 35 years of active practice in the Philadelphia region, Dr. Weiss is regarded as a visionary for her innovative and steadfast approach to informing and empowering individuals to protect their breast health and overcome the challenges of breast cancer.
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