Meet the Staff at Medical Genetics and Genomic Medicine

Debra-Lynn Day-Salvatore, MD, PhD, FAAP, FACMG
Chair, Department of Medical Genetics and Genomic Medicine

Dr. Day-Salvatore received her undergraduate degree from Harvard University and her medical degree from Case Western Reserve University School of Medicine.  Her residency training was in Pediatrics and Adolescent Medicine at the Cleveland Clinical Foundation, and she completed two years of post-graduate training in Medical Genetics at UMDNJ.  Dr. Day-Salvatore is also a molecular biologist with a Ph.D. and Masters from New York University Medical Center's Sackler Institute of Graduate Biomedical Sciences specializing in pharmacogenetics. She is recipient of the UMDNJ Foundation's Excellence in Teaching Award for 1994-95, has been consistently voted a Top Doctor by NJ physicians, has authored or co-authored more than 50 scientific papers and book chapters, has made several guest appearances on radio and television, and has lectured both nationally and internationally. She is director of the Regional Center for Newborn Screening and Genetic Services for central New Jersey, chair of the New Jersey metabolic task force, and is a principal clinical trials investigator and consultant for lysosomal storage disease therapies. She is best known in the international lysosomal community for her interest in the management and treatment of lysosomal storage diseases during pregnancy and recognized nationally for championing newborn screening. 

Samantha Leib, MD

Dr. Leib graduated Magna cum Laude from Rutgers University. She received her medical degree and completed her pediatric residency at UMDMJ-Robert Wood Johnson Medical School. Dr. Leib is a fellow of the American Academy of Pediatrics and is board certified in Pediatrics. Following her residency, she joined Union Hill Pediatrics. Dr. Leib is an assistant clinical professor of pediatrics at Saint Peter's University Hospital. She serves as the pediatric and development specialist for the Department of Genetics and Genomic Medicine and is the primary clinical coordinator for the newly implemented Genetics Outreach Program. She is a recipient of the Ruth Stein Ellen Clinical Teaching Award.


Michele Horner, MS, LGC
Genetic Counselor Supervisor

Michele is a board certified, licensed genetic counselor who has been with the Department of Medical Genetics and Genomic Medicine since 1997. She is a graduate of Rutgers University and worked as a cytogenetic technologist prior to obtaining her Master’s Degree in Genetic Counseling from the University of Pittsburgh. She worked at Cooper Hospital’s Genetics Division prior to joining Saint Peter’s. While at Saint Peter’s she has worked with various patient populations, including prenatal, pediatric, metabolic and adult, but has a special interest in cancer risk assessment and genetic counseling. Michele is an adjunct assistant professor with Rutgers University Department of Genetics where she lectures and mentors undergraduate students during clinical rotations as part of the Genetic Counseling Certificate program. She also supervises graduate student rotations.


Kristen Ondy, MS, LGC
Genetic Counselor

Kristen is a licensed genetic counselor. She provides genetic counseling services to pediatric, adult, and prenatal patients. Her specialty is metabolic conditions and lysosomal storage disorders. Kristen also works very closely with the New Jersey state newborn screening lab, following infants with abnormal newborn screening results to ensure proper management. Kristen is a graduate of the University of Richmond where she received a Bachelor of Science degree in Biology and the University of Pittsburgh where she received her Master of Science degree in Genetic Counseling. Her undergraduate thesis was entitled Proteomics of Machado-Joseph Disease using a Drosophila- melanogaster Model; her graduate thesis work entitled Life Factors Affecting Depression and Burden in Amyotrophic Lateral Sclerosis Caregivers was published in the Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration journal. Kristen continues to have a strong interest in neurodegenerative conditions. She is a member of the National Society of Genetic Counseling, the American Board of Genetic Counseling, and the Human Genetics Association of New Jersey. She is an active volunteer with the Make-A-Wish foundation and Camp Kesem.


Erin Winchester, MS, LGC
Genetic Counselor

Erin is a graduate of Rochester Institute of Technology where she obtained a Bachelor of Science degree, she received a Master of Science degree in Genetic Counseling from the University of Pittsburgh. Her graduate thesis work focused on the knowledge and attitudes of primary care providers with regard to breast cancer genetics. She provides counseling services to pediatric, adult, and prenatal patients. Erin continues to be interested in risk assessment and predisposition testing for hereditary cancers. She is a member of the National Society of Genetic Counselors. 


Janet Malcolmson, MS, LGC
Genetic Counselor

Janet is a graduate from the University of Guelph, where she earned a Bachelor of Science degree majoring in Molecular Biology and Genetics. Janet attended the Genetic Counseling Graduate Program at Long Island University - Post where she earned a Master’s of Science. Her graduate thesis work investigated the needs and expectations of parents of children with rare conditions that are undergoing whole exome sequencing (WES). Janet volunteered in a research lab at Cold Spring Harbor Laboratory where she assisted in writing case reports from patients who had WES completed. She is a member of the National Society of Genetic Counselors and the Canadian Association of Genetic Counsellors. 


Andrea Siering, MS, RD, CSP

Andrea is a Registered Dietitian, who is Board Certified as a Specialist in Pediatric Nutrition. She currently works with children and adults who are affected with metabolic disorders and require restricted diets, specialty metabolic formulas, and medical foods to stay healthy and thrive. Before joining the Department of Medical Genetics and Genomic Medicine, Andrea worked as an inpatient dietitian at Saint Peter’s University Hospital on the Pediatric and Pediatric Intensive Care Units. She has a wide variety of experience in Pediatrics, including oncology, feeding disorders, diabetes, epilepsy requiring the ketogenic diet, and critical care. She is a graduate of Drexel University where she received her Masters of Science in Human Nutrition. Andrea completed her dietetic internship at New York Presbyterian-Hospital. She is a member of the Academy of Nutrition and Dietetics, as well as the Pediatric Nutrition and Dietitians in Nutrition Support Practice Groups. She has a Bachelor of Arts in Psychology from The College of New Jersey.


Mary Lou Brown, RN, BSN, CEN

Marylou is a registered nurse with more than 30 years’ experience, 28 of them at Saint Peter's University Hospital. Graduating from Borough of Manhattan Community College with an Associates of Science degree in Nursing, her primary focus was in emergency nursing. She has maintained board certification in Emergency Nursing, as well as Advanced Cardiac Life support and Pediatric Advanced Life Support. In 2013, she completed her Bachelor of Science in Nursing, summa cum laude from Walden University, also achieving the Presidential Commendation for Academic Achievement Award. Marylou joined the department in 2003 as an infusion therapy nurse for lysosomal storage disorders and since has expanded her role to include triage and intake coordinator for the department.


Eileen Cusanelli, RN, CEN

Eileen is a registered nurse who attended Saint Peter's School of Nursing. She is currently attending Walden University to pursue her Bachelors of Science of Nursing. She holds certifications in ACLS, BLS, PALS and has her CEN and RNC. Eileen has worked at Saint Peters for 23 years; 16 years in the Emergency Room, six years in Endoscopy/Same Day Surgery Recovery and currently in the Department of Medical Genetics and Genomic Medicine. She also worked at Jersey State Prison, an ENT Surgi-Center and as a private duty home nurse. She received two Starfish awards while working at Saint Peter's. Eileen currently infuses patients who have lysosomal storage disorders such as Fabry, Pompe, MPS1 and Gaucher and works with the geneticists seeing patients who have genetic disorders or patients who are trying to find a diagnosis for symptoms they are having.

Christina Marie Bauch, RN, BSN
Nurse Navigator

Christina is the Nurse Navigator for the Department of Medical Genetics and Genomic Medicine. She earned a Bachelor of Science degree in Nursing from Felician University. She holds certifications in Basic Life Support, Advanced Cardiac Life Support, and Pediatric Advanced Life Support and has almost 15 years experience in the health care industry in Spinal Cord Injury, Post Anesthesia Care, and Emergency Nursing. Her diverse experience in nursing helps to provide optimal patient guidance with their individual plan of care.

Donna Farren-Chavez
Donna Farren-Chavez
Intake Coordinator

Donna Farren-Chavez is a board-certified genetic counselor who is currently working as our Intake Coordinator.  Donna initially joined the staff as a genetic counselor in 1992 upon graduating from Sarah Lawrence College. She worked with prenatal, pediatric and adult patients and assisted the Craniofacial Team during her years with Genetics. After taking some time to be with her family, she is welcomed back to her new role using her experience as a genetic counselor to assist in triaging patients for our various clinics.


Erin Savage
Erin Savage
Education and Outreach

May Dionisio
Practice Coordinator 



Amida Sagastume
Billing Coordinator


Desiree Alvarado​



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