![Margaret Sheehan](https://www.mskcc.org/sites/default/files/styles/large/public/node/18282/main_image/sheehan-margaret-220630-07_rt_1200x800.jpg)
I provide counseling to people who may have an inherited predisposition to cancer, including hereditary breast and ovarian cancer syndrome and hereditary colorectal cancer syndromes. I am involved with research on the inherited changes that are found through targeted tumor sequencing. I also assist in administrative and operational processes for the Clinical Genetics Service.