Division of Gastroenterology

Meet Our Doctors

The University Doctors Division of Gastroenterology within the Department of Medicine features the medical expertise of Charles Bongiorno, MD, FACP, FACG, Chief of Division of Gastroenterology/Hepatology and John Chiesa, DO, FACOI.

• Charles Bongiorno, MD, FACP, FACG, Chief, Division of Gastroenterology/Hepatology
  

  Dr. Bongiorno, an associate professor of Medicine, is the chief of the Division of Gastroenterology. Dr. Bongiorno is board certified in both Internal Medicine and Gastroenterology. He earned his Bachelor of Science degree in Zoology, cum laude, from Kent State University, Ohio, and his medical degree from the University of Toledo (Medical College of Toledo). He served his internship and residency at The Graduate Hospital of the University of Pennsylvania, where he also completed a fellowship in Gastroenterology and Nutrition. Prior to joining the faculty of UMDNJ-SOM, Dr. Bongiorno was an attending physician, Gastroenterology at Albert Einstein Medical Center in Philadelphia and Yale University in Connecticut. more >>

• John Chiesa, DO, FACOI, Vice Chair, Dept. of Medicine

  Dr. Chiesa, an associate professor of Medicine within the Division of Gastroenterology, was a member of the UMDNJ-SOM faculty from 1980 until 2005. Dr. Chiesa, board certified in Internal Medicine and Gastroenterology, earned his Bachelor of Science degree in Pharmacy from Columbia University and his medical degree from the Philadelphia College of Osteopathic Medicine. He served his internship at Kennedy Memorial Hospital (KMH), Stratford, and completed his residency in Internal Medicine at Veterans Hospital, Salem, VA and at KMH. He did his fellowship in Gastroenterology at The Graduate Hospital and KMH. Dr. Chiesa also serves as vice chair of the Department of Medicine. more >>

• Donald J McMahon DO

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