The PA Medical Specialty is a licensed, certified, non-physician healthcare provider who actively renders direct patient care and possesses delegated prescriptive authority, is credentialed and privileged, and whose service is billed as an independent billing provider, as recognized by Medicare and Medicaid within the healthcare systems, and in accordance with the appropriate board. These providers work in a specialty clinic, and may specialize in Palliative Care, Pulmonary, Infectious Disease, Endocrinology, Gastroenterology, Cardiology, Dermatology, Urology, Nephrology, Neurology, Hematology, Oncology, Allergy and Immunology, Rheumatology or other medical specialty.