Both physicians are board certified in internal medicine and gastroenterology, and serve on the staff at Resurrection Health Care’s Saints Mary and Elizabeth Medical Center. Their office is located at the Saint Elizabeth Professional Building in Chicago.
The younger Dr. Castillo received his MD from the University of Illinois College of Medicine in Rockford, Ill. He completed his internal medicine residency at the Mayo Clinic College of Medicine in Rochester, Minn., and completed a gastroenterology fellowship at the University of Arizona Affiliated Hospitals in Phoenix.
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