Delmarva Heart LLC. Nursing (Nurse Practitioner), Cardiology • 10 Providers. 106 Milford St Ste 605, Salisbury MD, 21804. Make an Appointment. (410) 334-2227. Telehealth services available. Delmarva Heart LLC is a medical group practice located in Salisbury, MD that specializes in Nursing (Nurse Practitioner) and Cardiology..