Internal Medicine Group, LLC, Norwich, CT. Health (2 days ago) Internal Medicine Group, LLC. Nursing (Nurse Practitioner) • 4 Providers. 1 Towne Park Plz, Norwich CT, 06360. Make an Appointment. (860) 887-0010. Internal Medicine Group, LLC is a medical group practice located in Norwich, CT that specializes in Nursing (Nurse Practitioner ....