Feb 08, 2022 · Carlos A. Del Rio, MD Carlos A. Del Rio MD Accepting New Patients Specialty Internal Medicine Gender Male Office Locations Office of Dr. Carlos Del Rio 505 Nashua Road Suite 1 Dracut, MA 01826 (978) 957-9650 (978) 957-9017 Education Medical School University of Buenos Aires Paraguay Argentina Residency Internal Medicine Abington Memorial Hospital.