Dr. Teresa Schaer, MD is a Geriatric Medicine Specialist in Dayton, NJ and has over 41 years of experience in the medical field. ... Her office is not accepting new patients. 5 (7 ratings) Leave a review. Teresa Schaer MD. 12 Stults Rd Ste 123 Dayton, NJ 8810 (directions) Make an Appointment (732) 230-3272. Share Save (732) 230-3272. Overview ....