Internal Medicine, Gastroenterology in ALTON, IL
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Dr. Mark M. Allendorph is a physician specializing in Internal Medicine and Gastroenterology based in Alton, IL.
Generated from public NPI Registry data only. Not independently verified — confirm credentials directly with the practice.
Dr. MARK M ALLENDORPH specializes in Internal Medicine, Gastroenterology.
Dr. MARK M ALLENDORPH practices in ALTON, IL.
Dr. MARK M ALLENDORPH's NPI number is 1922094002.