Hartford HealthCare supports Nurse Practitioners and Physician Assistants in practice: Dedicated support and voice for our for Nurse Practitioners and Physician Assistants through the Office of Advanced Practice directed by Sarah Clark, MBA, MHS, PA-C, BSN, RN, System Director of Advanced Practice. With your comprehensive knowledge of acute critical care conditions, diagnostics & treatments, you will be expected to diagnose, treat, and manage acute & chronic diseases, perform procedures, order and interpret diagnostic tests, speak to patients & families about their conditions, and collaborate with a variety of consultants.