HNL Lab Medicine is a leading, full-service medical laboratory providing testing and related services to physician offices, hospitals, long-term care facilities, employers and industrial accounts.HNL Lab Medicine has more than 60 locations throughout Pennsylvania and New Jersey, and generates more than 60 million clinical and anatomic pathology results for approximately 3 million patients and ...About Us‧Contact‧Check-In at a Patient Center‧Schedule a House Calls Appointment‧Participating Insurance Plans‧Why You Need a Lab Test.