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  A Proud Affiliate of Middlesex Hospital. Serving Greater Middlesex County for over 30 years.



Middlesex Gastroenterology Associates, LLC (MGA) was formed in July 1987 by Doctors Raymond F. Macionus and David M. Renison. The practice is currently comprised of 8 physicians, Doctors Stanislaus Opalacz, Gregor J. Koobatian, Nadeem Hussain, Edmund Y. Chung, Lucian F. Gorgan, Mario Q. Ricci, Sarah Canavan, Ryan O'Connor, APRN Kristin Kolat, 4 Physician Assistants, Michael McDonald, Richard Whitehead, Nicole Tino and Martha McCrann.


Suite 201
410 Saybrook Road
Middletown, CT 06457