Health Quest breast cancer teams include board certified diagnostic radiologists, pathologists, medical oncologists, radiation oncologists, endocrinologists, geneticists and surgeons. Other team members include oncology-trained nurses, genetic counselors, patient navigators, registered dietitians, and physical and occupational therapists. All are committed to identifying and implementing the best treatment plan for each individual patient.
Angela J. Keleher, MD, FACS
Dr. Keleher is our director and lead breast surgeon. Highly respected in the field of breast surgical oncology, Dr. Keleher was previously the chief of surgical breast oncology at Western Pennsylvania Hospital and an assistant professor of surgery at the Temple University School of Medicine. She completed her Clinical Breast Fellowship at the University of Texas M.D. Anderson Cancer Center in Houston and her general surgery residency at Western Pennsylvania Hospital in Pittsburgh. Dr. Keleher earned her medical degree at the University of Illinois at Chicago and is certified by the American Board of Surgery.
Dr. Keleher is a proud member of the American Society of Breast Disease, the American Society of Breast Surgeons and the Society of Surgical Oncology. She was voted a “Top Doc” in 2014 by Hudson Valley Magazine.
Gregory J. Zanieski, MD
Dr. Zanieski, joins us from his surgical oncology Fellowship at the University of Pittsburgh Medical Center. Previously he was Chief Resident and completed his general surgery residency at the New York Methodist Hospital in Brooklyn. Dr. Zanieski earned his medical degree at the State University of New York at Stony Brook School of Medicine. He is certified by the American Board of Surgery and is a proud candidate member of the Society of Surgical Oncology.
Sara Winterleitner, NP
Sara is a specialty-trained nurse practitioner certified in oncology. She is head of the High Risk Center at the Dyson Center for Cancer Care and has cared for oncology patients in our community for more than 20 years. She is also a certified breast cancer nurse and a proud member of the National Oncology Nursing Society, the Nurse Practitioner Association, the National Honor Society of Nursing and is the President-elect of the Mid-Hudson Oncology Nursing Society Chapter.
Alexa Kyle, PA-C, MS
Physician's assistant Alexa joined our esteemed Breast Center team in 2012. She fine-tuned her skills at Mt. Sinai and Mercy Philadelphia Hospital and obtained her degree at Philadelphia University. Her experience includes a surgical oncology rotation at the Fox Chase Cancer Care Center and a rotation in breast oncology at the Marion-Louise Saltzman Women's Center.
Lisa Hartman, MSN, CRNP, ACNP-BC
Lisa is a board certified Adult Acute Care Nurse Practitioner (ACNP). She obtained her ACNP and masters in nursing from the University of Pennsylvania. She is also a Certified Registered Nurse Practitioner. Prior to joining the Breast Center team in 2014, Lisa cared for surgical-trauma patients at Thomas Jefferson University Hospital in Philadelphia. She has extensive experience treating pediatric and adult patients in cardiac, medical and surgical-trauma intensive care units. Lisa is a member of many associations including the Society of Critical Care Medicine and The Nurse Practitioner Association of New York State.