Donn S. Cobaugh, MD is a family medicine doctor and primary care doctor who practices at Family Physicians Of Chester, PC located at 12801 Iron Bridge Rd in Suite 200 in Chester, VA 23831 (Chester County). Dr. Donn S. Cobaugh has 15+ years of experience in family medicine. Education. Donn S. Cobaugh, MD earned a degree of a Doctor of Medicine..