Stefan H. Wittner, DMD, PA Share: Dentists Stefan H. Wittner, DMD, PA 31 Hanson Street PO Box 1966 Rochester, NH 03866-1966 (603) 332-0106 About Rep Info Map About General Family Dentistry Whom to Contact Dr. Stefan Wittner Phone: (603) 332-0106 View Larger Map Sponsors Eversource Service Credit Union HRCU Profile Bank