Our Physicians

A team of board-certified physicians specializing in the diagnosis and management of various digestive and liver diseases.

Stan Opalacz, MD

Stanislaus Opalacz, M.D.

Gregor Koobatian MD

Gregor J. Koobatian, M.D., AGAF

Nadeem Hussain MD

Nadeem Hussain, M.D.

Ed Chung, MD

Edmund Y. Chung, M.D.

Lucian Gorgan, MD

Lucian F. Gorgan, M.D.

Mario Ricci, MD

Mario Q. Ricci, M.D.

Sarah Canavan, MD

Sarah Canavan, M.D.

Ryan OConnor, MD

Ryan O'Connor, M.D.

Our APRN

Kristen Kolat

Kristin Kolat, N.P.

Our Physician Assistants

Michael Whitehead, PA-C

Richard Whitehead, PA-C

Michael McDonald PA-C

Michael McDonald, PA-C

Nicole Tino, PA-C

Nicole Tino, PA-C

Martha McCrann, PA-C

Our state-of-the-art facilities are designed to provide our patients with treatment options tailored to meet their needs and comfort.

We accept a variety of health plans. Call our office for more information.

Our Affiliate Middlesex Hospital

is a not-for-profit patient-focused health network where state-of-the-art technology is combined with an uncommon level of personal concern for patients and families. For over 100 years, focused entirely on the health needs and priorities of the residents of the communities in Greater Middlesex County.

Our mission is to deliver compassionate, high-quality care.