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Our Team

Our specialists are committed to providing the most current treatment modalities. The GI team works closely with other subspecialty divisions (pulmonary, genetics, transplantation, etc.) to provide the most comprehensive patient care possible.

Chief of Pediatric Gastroenterology, Hepatology and Nutrition

Pediatric Gastroenterologists


  • Albert Chan, M.D.
  • Gracielle Bahia, D.O.
  • Imdad Ullah, M.B.B.S.


  • Colleen Hill-Sober, R.N., M.S., P.N.P.-B.C., F.N.P.
  • Jean Mooney, R.N., M.S.,C.P.N.P.
  • Karen VanNorman, B.S.N., R.N., C.G.R.N.

Registered Dietician

  • Elizabeth Carnes, R.D.
  • Donna Quinzi, R.D.

Social Work

  • Jennifer Aquilina, L.M.S.W.