• Erin Hofstatter

    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 cancer due to a hereditary/genetic predisposition, a strong family history, or breast atypia.

  • Xavier Llor

    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 program mainly focusing on two different aspects of colorectal cancer: hereditary and familial forms, and disparities in colorectal cancer. This work has resulted in over 70 scientific publications in this field. He has made seminal contributions to the field of Lynch syndrome diagnosis as well as in the definition of other non-polyposis syndromic colorectal cancer cases. Some of his most recent work is providing important clues to the understanding of the biological differences that contribute to disparities in colorectal cancer.

    Dr. Llor is the Co-Director of the Smilow Cancer Genetics and Prevention Program and the Medical Director of the Colorectal Cancer Prevention Program at Yale University and Smilow Cancer Hospital and he sees patients at Yale. He is a member of the leadership council and Chair of the Education and Training Committee of the American Gastroenterological Association. He is commonly invited to lecture in colorectal cancer genetics in the US and abroad.

  • 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 has also been involved in publications and research projects regarding care of patients with hereditary cancers, adverse events in cancer genetic counseling, and the viewpoints of genetic counselors and other providers regarding the decisions faced by patients with hereditary cancer. In 2014, she took on a senior leadership role as the Chief Genetic Counselor for the Smilow Cancer Genetics and Prevention Program. In this role, she works with a diverse team of clinicians to provide comprehensive care to patients with hereditary cancer and to advance the research initiatives of the team.

  • 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.
  • 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 being able to provide comprehensive care and access to genetic testing to patients within the Smilow Cancer Hospital at Yale New Haven Health system. Amanda is a member of the National Society of Genetic Counselors (NSGC) and serves as a member of the NSGC Cancer Special Interest Group.
  • Claire Healy

    Outreach Coordinator

    Claire Healy graduated in 2008 from the genetic counseling program at the University of North Carolina at Greensboro. She previously worked as a genetic counselor at the Dana Farber Cancer Institute until joining the Smilow Cancer Genetics and Prevention Program in 2015. Claire is passionate about the field of genetic counseling and wants to ensure that all patients have access to genetic counseling services despite their geographic location or socioeconomic status. She serves as the Outreach Coordinator for the Smilow Cancer Genetics and Prevention Program and in that role is working to expand access to hereditary cancer genetic counseling services across the Yale New Haven Hospital Health System through in person consultations and telemedicine. She enjoys the collaborative and interdisciplinary team at Yale and is proud of the care patients receive in the program.
  • Amy Killie

    Genetic Counselor

    Amy Killie graduated in 2017 from the genetic counseling program at the Icahn School of Medicine at Mount Sinai. In addition to her training as a genetic counselor, Amy has volunteered for IMAlive.org, an online crisis hotline, for over three years where she has training in crisis intervention. Amy is passionate about the benefits of genetic testing and how this information can be used by individuals and their families to make the best decisions for their health. As a Connecticut native, Amy is proud to be a part of the multidisciplinary team at the Smilow Cancer Genetics and Prevention Program.
  • Genetic Counselor

    Alex Petterson, MS, LGC graduated in 2018 from the genetic counseling program at Arcadia University outside Philadelphia.  His thesis focused on patient perceptions of a Lynch syndrome universal tumor screening program.  Before becoming a genetic counselor, Alex worked as a math tutor with children and adults of all ages.  He is excited help people from all backgrounds learn about hereditary cancer and the benefits of genetic testing.  A former Yale graduate student, Alex is happy to return to the New Haven area in a different role as part of the Smilow Cancer Genetics and Prevention Program team.  

  • Genetic Counselor

    Jonica Richards graduated in 2018 from the genetic counseling program at the University of Wisconsin-Madison. During her training, she also earned a certificate in Health Advocacy through the Center for Patient Partnerships. Jonica provides patient care both in New Haven and at the outreach clinic at St. Francis Hospital in Hartford. Jonica is proud to be a part of the collaborative team at the Smilow Cancer Genetics and Prevention Program.

  • Genetic Counselor

    Camille Varin-Tremblay graduated in 2018 from the genetic counseling program at McGill University. In addition to her training as a genetic counselor, Camille has volunteered for Tel-Aide and Ecoute Entraide, two crisis hotlines, for one year where she has trained in crisis intervention. She is dedicated to helping patients and family members better understand their hereditary cancer risk. Camille is a member of the National Society of Genetic Counselors (NSGC) and the Canadian Association of Genetic Counselor (CAGC).