Dr. Heintz has two orthodontic offices, conveniently located in Alton and Carlinville, IL. ALTON OFFICE 2828 Homer Adams Parkway Alton, IL 62002 618-465-7423 DRIVING DIRECTIONS Address: City, Zip, State: To: 2828 Homer Adams Parkway Alton, IL 62002 provided by Yahoo! CARLINVILLE OFFICE 205 College Ave. Carlinville, IL 62626 217-854-7423 DRIVING DIRECTIONS Address: City, Zip, State: To: 205 College Ave. Carlinville, IL 62626 provided by Yahoo!