Dr. Robert J. Walker

Lisa Witherite-Rieg is a primary care provider, practicing in Family Medicine in Brookville, Pennsylvania. Dr. Witherite-Rieg is rated as an Advanced provider by MediFind in the treatment of Membranous Nephropathy. Her top areas of expertise are Grass Allergy, Colorectal Cancer, Familial Colorectal Cancer, and Anemia.

Dr. Matthew Macken is a board-certified Family Medicine doctor at Heyl Family Practice in North Hills of Pittsburgh. Dr. Macken sees patients at both the West View and McCandless offices, as well as Passavant Hospital - McCandless. As a primary care provider for a wide range of patients, Dr. Macken has interests in Sports Medicine, Geriatrics and Adult Internal Medicine.When asked what he likes most about what he does as a physician, he stated, “The opportunity to learn more about my patients and their families’ lives. The unique thing about primary care is the ability to treat patients and build relationships that can last a lifetime.” It’s clearly more about providing a high-quality experience for the patient and truly getting to know their needs as they evolve.When asked what his top goal is for his role as a primary care doctor, he indicated it is, “To maintain the best quality of life for each of my patients and their unique medical needs. In reading various reviews of Dr. Macken’s care of patients at the practice, this review described him perfectly."“Dr. Macken listens very carefully with genuine concern and takes his time explaining his treatment plan, as well as answering any questions you may have. He is a top-notch doctor, along with a kind, caring and courteous staff! I highly recommend Dr. Macken, as well as the PAs in his office." -Martha S.Dr. Matthew Macken and Heyl Family Practice providers are currently accepting new patients. Dr. Macken is rated as an Advanced provider by MediFind in the treatment of Membranous Nephropathy. His top areas of expertise are Seasonal Affective Disorder (SAD), Obesity, Gastroesophageal Reflux Disease (GERD), and Sinusitis.

Mason Tootell is a primary care provider, practicing in Family Medicine in Warren, Pennsylvania. Dr. Tootell is rated as an Advanced provider by MediFind in the treatment of Membranous Nephropathy. His top areas of expertise are Familial Hypertension, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Trichohepatoenteric Syndrome.