Thank you for choosing the dental practice of Dr. John L. Peterman, DMD, formerly the office of Dr. Richard H. Sadowski. Dr. Sadowski proudly served the Sandwich community and its surrounding areas for over 30 years and Dr. Peterman is excited to continue providing the same level of care to new and existing patients. It is our mission as your dentist in Sandwich to provide you and your family with exceptional quality dental care for many years to come.