Home Locations Tri-State Obstetrics and Gynecology, Inc. – Chippewa / Beaver Falls Tri-State Obstetrics and Gynecology, Inc. – Chippewa / Beaver Falls Tri-State Obstetrics and Gynecology, Inc. – Chippewa / Beaver Falls 2620 Constitution Blvd., Upper Level Beaver Falls, PA 15010 Christopher Palombo, MD Patricia Vigder, DO Paula Youngdahl, MD Practice Information