Physicians

Meet our physicians: highly-trained, board-certified in internal medicine and gastroenterology.


Brian H. Hyett, MD
Dr. Brian Hyett received his undergraduate degree from Cornell University and his degree in Medicine from the University of Massachusetts Medical School…


Aristotle J. Damianos, MD
Dr. Aristotle Damianos received his undergraduate degree from Dartmouth College and his degree in medicine from Dartmouth Medical School. He completed his internship and residency at Dartmouth-Hitchcock Medical Center…


David P. Flavin, MD
Dr. David Flavin received his undergraduate degree from the College of Holy Cross and his degree in Medicine from the University of Vermont. His internship and residency were completed at Boston University Medical Center…


Jaime A. Baquero, MD
Dr. Baquero received his degree in medicine from Escuela Colombiana de Medicina in Colombia, South America and completed a sub-internship at Brigham and Women’s Hospital in Boston, Massachusetts…


Robert A. Ruben, MD
Dr. Robert Ruben received his undergraduate degree from Brandeis University and his degree in Medicine from the University of Vermont. His internship and residency was completed at the University of Colorado Health Sciences Center…


Roger M. Epstein, MD
Dr. Roger Epstein received his undergraduate degree from Cornell University and his degree in Medicine from Boston University School of Medicine. His internship and residency were completed at the Veterans Administration…


William E. Maher, MD
Dr. William Maher received his undergraduate degree from Rutgers University and his degree in Medicine from the University of Medicine and Dentistry of New Jersey Hospital. His internship and residency in Internal Medicine…


Sean P. Lynch, MD
Dr. Sean Lynch received his undergraduate degree from Bowdoin College and his degree in Medicine from Weill Medical College at Cornell University…


Marylyn V. Grondin, MD
Dr. Marylyn V. Grondin received her degree in Medicine from LaSalle University and a Clinical Certificate from the College of Medicine and Dentistry of New Jersey…


Procedures

The physicians and staff of Gastroenterology Professional Association are committed to providing high quality medical care in the specialty of Gastroenterology. Our goal is to work with you and your primary care physician to address conditions involving the gastrointestinal tract, liver, and pancreas. [learn more]

Philosophy

At Gastroenterology Professional Association, we put our patients first. From our very first patient in 1973, we have taken the approach that both physical and emotional well-being are part of the equation to providing the highest care possible. [read more]