Dr. Stelzer obtained his Bachelor of Electrical Engineering from the City College of New York and graduated from St. Louis University School of Medicine.  He completed his residency training in Internal Medicine at SUNY College-Buffalo and was Chief Resident in Internal Medicine at Buffalo General Hospital. He completed his Gastroenterology Fellowship at Temple University Hospital.

He is a Clinical Associate Professor of Medicine at the University of South Florida Morsani College of Medicine. He is board-certified in Internal Medicine and Gastroenterology.