Bio Profile

Allen Bale, MD

Professor of Genetics

Director, DNA Diagnostic Lab

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Erin Hofstatter, MD

Associate Professor Term

Co-Director, Cancer Genetics and Prevention Program

Dr. Erin Hofstatter is a medical oncologist with clinical and research expertise in breast cancer and clinical breast cancer genetics. She serves as a breast medical oncologist at the Breast Center at Smilow Cancer Hospital, where she sees and treats patients with breast cancer. Dr. Hofstatter also serves as the Co-Director of the Smilow Cancer Genetics and Prevention Program/Director of the Breast Cancer Prevention Clinic, where she sees those patients who may be at increased risk of breast...

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Xavier Llor, MD, PhD

Professor of Medicine

Medical Director, Cancer Screening and Prevention Program, and Colorectal Cancer Prevention Program

Co-Director, Cancer Genetics and Prevention Program

After obtaining his MD degree from the Autonomous University Barcelona, Dr. Llor trained in basic research and Internal Medicine at the University of Chicago and completed his GI fellowship at the University of Illinois at Chicago. He complemented his training with a PhD degree in molecular biology from the University of Barcelona. A clinically active gastroenterologist, Dr. Llor’s research and clinical interests relate to colorectal cancer. He has a very active basic and translational research...

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Karina Brierley

Chief Genetic Counselor

Karina’s training, experience, and interests have broadly centered on genetics and genetic counseling for over 20 years. Her background ranges from basic science genetics laboratory work to clinical genetic counseling. Karina graduated in 2001 from the Brandeis University genetic counseling program. She has worked as a cancer genetic counselor with the Yale Cancer Genetic Counseling Program and then the Smilow Cancer Genetics and Prevention Program for more than 15 years. In these roles, she...

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Susan Chmael

Staff Affiliate - YNHH

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Mahin Dawood, MS

Coordinator 4, Research Support

Clinical Research Coordinator, Yale Center for Clinical Investigation (YCCI)

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Jessica DiGiovanna

Genetic Counselor

Jessica DiGiovanna, MS, LCGC, graduated in 2015 from the genetic counseling program at the Icahn School of Medicine at Mount Sinai. While receiving her undergraduate degree, Jessica gained exposure to the field serving as the Genetic Counselor Assistant for the Cancer Genetics and Prevention Program. She was honored to return to Yale as one of the team’s genetic counselors upon graduation. Jessica has also enjoyed volunteering at Camp Sunshine in Casco, Maine, providing support and resources to...

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Jennifer Doherty

Genetic Counselor

Jennifer Doherty, MS, LCGC, graduated in 1994 from the genetic counseling program at Sarah Lawrence College in Bronxville, New York and has been with our program since 2013. Jen reentered the field of genetic counseling after time off to be with her family by completing a cancer genetics fellowship at Yale. She enjoys being part of a dynamic team that provides genetic counseling services to a diverse population.

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Colleen M. Dougherty

Genetic Counselor

Colleen M. Dougherty, MS, LCGC, graduated in 1991 from the genetic counseling program at the University of California at Berkeley. She has past experience in adult connective tissue diseases, prenatal diagnosis and as Director of the Northwestern University genetic counseling training program. Prior to coming to Yale, Colleen took several years off while living abroad with her family. Colleen is excited to be back working in genetic counseling as a part of a multi-faceted cancer genetics...

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Amanda Ganzak

Genetic Counselor

Amanda Ganzak graduated in 2008 from the genetic counseling program at Arcadia University. She previously worked as a cancer genetic counselor at MD Anderson Cancer Center in Houston, TX and the Hospital of the University of Pennsylvania in Philadelphia, PA until joining the Smilow Cancer Genetics and Prevention Program in 2017. Amanda sees patients at our outreach satellite offices located at the Park Avenue Medical Center in Trumbull and Smilow Cancer Care Center in Fairfield. She values...

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