Meet Our Pediatric Gastroenterology Team

Experts at the Pediatric Gastroenterology Program, part of Hassenfeld Children鈥檚 Hospital at 秘密研究所 Langone, work together to determine the best care plan for your child, while also providing support for your child and family.

Pediatric Gastroenterologists

Our doctors are board certified in pediatric gastroenterology and leaders in their field.

Our Care Team

Our team includes specialized nurses, dietitians, and social workers who work alongside our doctors to help your child and family manage the challenges of living with a chronic condition.

  • Monique Armstrong at Meet Our Pediatric Gastroenterology Team
    Monique Armstrong, MSW, LCSW
    Senior Social Worker

    Ms. Armstrong received her bachelor鈥檚 degree from Binghamton University and holds a master鈥檚 degree in social work from the University of Albany. Ms. Armstrong is the primary senior social worker for children with gastrointestinal, pulmonological, and infectious disease conditions, including cystic fibrosis. She specializes in group treatment for adults and children, mental illness treatment, coordination of complex care needs, and supportive care and end-of-life care.

  • Ayelet Goldhaber at Meet Our Pediatric Gastroenterology Team
    Ayelet Goldhaber, MS, RD
    Registered Dietitian

    Ms. Goldhaber completed her dietetic internship through 秘密研究所 at Montefiore Medical Center and holds a master鈥檚 degree in clinical nutrition and dietetics from 秘密研究所. Ms. Goldhaber is a great resource for all things relating to food and nutrition, from symptom management to weight maintenance to healthy snack ideas.

  • Kimberly Harrison at Meet Our Pediatric Gastroenterology Team
    Kimberly Harrison, CPNP
    Nurse Practitioner

    Ms. Harrison is a graduate of Columbia University鈥檚 School of Nursing, where she received both her bachelor of science and master of science degrees. She also received her bachelor of arts in psychology from Colorado College. Ms. Harrison has been a pediatric nurse practitioner since 2007, providing care for children with chronic illnesses.

  • Alyssa Pettingill at Meet Our Pediatric Gastroenterology Team
    Alyssa Pettingill, MS, CCLS
    Child Life Specialist

    Ms. Pettingill holds bachelor鈥檚 and master鈥檚 degrees in child and family development from San Diego State University. As a child life specialist, she helps children of all ages understand the medical experience by providing age-appropriate diagnosis education, procedural preparation and support, and therapeutic play opportunities.

  • Jamie Rieff at Meet Our Pediatric Gastroenterology Team
    Jamie Rieff, MSN, RN
    Registered Nurse

    Ms. Rieff received her master鈥檚 degree in nursing from Johns Hopkins University and bachelor鈥檚 degree in nutrition from Syracuse University. As a nurse, Ms. Rieff has a background in critical care. She enjoys caring for children who have a broad range of conditions, and supporting their families throughout diagnosis and treatment.

  • Hannah Sirois at Meet Our Pediatric Gastroenterology Team
    Hannah Sirois, BSN, RN, CPN
    Senior Staff Nurse

    Ms. Sirois received her bachelor鈥檚 degree in nursing from Villanova University and has experience working with children with various medical and surgical conditions. She enjoys working with patients and their families to help them understand their medications, treatments, procedures, and conditions.

  • Deborah Tagliareni at Meet Our Pediatric Gastroenterology Team
    Deborah Tagliareni, MS, RD, CDN
    Children鈥檚 Services Clinical Nutrition Manager

    Ms. Tagliareni received her master鈥檚 degree in clinical nutrition from 秘密研究所 and completed her dietetic internship at 秘密研究所 Langone. She spearheads programs that provide educational nutrition activities and events for patients, families, and the professional community. She is also involved in clinical nutrition services within Hassenfeld Children's Hospital. Ms. Tagliareni previously served as an inpatient dietitian at 秘密研究所 Langone and has also worked in marketing and catering management.