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Our Physicians

The gastroenterology professionals at Mercer Gastroenterology want all our patients to be informed decision makers and fully understand any health issues you face.

Jyoti K. Bhatia, M.D.

Dr. Bhatia has been a partner at Mercer Gastroenterology and an active staff member of Capital Health system since 2004.

Ravinder S. Dhillon, M.D.

Dr. Dhillon was born and raised in Yardley, PA. He attended Northwestern University as a member of the Honors Program in Medical Education, and graduated with honors (B.A., History), going on to complete his medical degree at Northwestern University Medical School in Chicago, IL.

Marion-Anna Protano, M.D.

Dr. Protano graduated with high honors and Phi Beta Kappa from Trinity College, CT. She then went on to receive her medical degree from UMDNJ-Robert Wood Johnson Medical School in New Brunswick, NJ.

Armen J. Simonian, M.D.

Dr. Simonian has been a partner with Mercer Gastroenterology and an active staff member of Capital Health system since 1996 when he completed his fellowship in Gastroenterology.

Douglas H. Weinstein, M.D.

Dr. Weinstein obtained his medical degree at Weill Cornell, NYC. He completed medicine residency at UT Southwestern in Dallas, TX and gastroenterology fellowship at the University of Maryland/NIH program.

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