About the Practice

Hershey Endoscopy Physicians

Our Physicians

Physicians using the Hershey Endoscopy Center are Board-Certified Gastroenterologists or colo-rectal surgeons who all are faculty-members of the Hershey Medical Center. The following is a list of our providers. Please click on a name to learn more about their specialty, medical education and professional affiliations.


Deborah M. Bethards, M.D. Charles E. Dye, M.D.
Abraham Mathew, M.D. Thomas J. McGarrity, M.D. Medical Director
Evangelos Messaris, M.D., Ph.D. Ann Ouyang, M.D.
Matthew T. Moyer, M.D. Lisa S. Poritz, M.D.
Thomas R. Riley, III, M.D. Ian R Schreibman, M.D.

Endoscopic Procedures

Gastrointestinal endoscopy is the visual examination of the upper intestinal tract (esophagus, stomach, and duodenum) and the lower bowel (colon, rectum). This is accomplished by using flexible tubes that transmit the image inside the body to a television monitor or screen, using computer and fiberoptic technology. These exams include upper endoscopy (EGD), colonoscopy and sigmoidoscopy.



Advanced Technology

Thanks to our advanced video-imaging equipment, more accurate and timely diagnoses are possible. The Hershey Endoscopy Center provides the physician with new plasma screen images of the intestinal tract. The video imaging system is networked for computer storage, which allows full color, hard print documentation of each procedure, long-term storage of all images, and videotape recordings of procedures when required.



Comfort, Convenience, Privacy

As a free-standing center, our facility provides patients and their families with the highest levels of comfort, privacy and convenience before, during and following the procedure. With convenient parking, a spacious waiting area and smooth-flowing process, our patients are our priority.