8 reviews of Cara L Donley, DMD PC "Dr. Cara Donley and her staff are THE BEST! They can get my 3 year old to sit in a chair by himself! I couldn't believe it when I saw it! They go through a step-by-step process, picking out a toy, picking out 5/5(8). Dr. Cara L. Donley is a pediatric dentist with an office on Boston Post Road in Sudbury. Dr. Donley offers comprehensive and gentle dental health services for patients from infancy through adolescence. Call Dr. Donley's office during regular business hours to schedule an appointment/10(8). About Dr. Donley. B Boston Post Road, Sudbury, MA Call Dr. Cara Donley grew up in York, PA around Pennsylvania Dutch country and of all places, Hershey Park. As a chemistry major, she graduated summa cum laude from the University of Pittsburgh before moving to MA for dental school. Dr. Donley now lives in Sudbury.