Doctor Profile Request an Appointment Location: Park Clinic - Family Care Address: 1314 Harville Road Suite 200 Duncan, OK 73533 Phone: 580-252-1373 Location: Park Clinic Address: Demetra Cox MD Family Medicine Park Clinic - Family CareDuncan Regional HospitalPark Clinic Community: Duncan Board Certification American Board of Family Medicine Medical School University of Oklahoma College of Medicine Residency University of Oklahoma College of Medicine