Dr. William Mattiace

Ryan D’Souza, DO, is a primary care provider with PinnacleHealth FamilyCare Union Deposit. He received his medical degree from the Philadelphia College of Osteopathic Medicine and completed his residency at UPMC in Central Pa.Dr. D'Souza’s clinical interests include mental health, cardiovascular and diabetes management, and he is a member of the Pennsylvania Osteopathic Medical Association, the American College of Physicians, the Christian Medical and Dental Association, and the American College of Osteopathic Family Physicians.Outside of medicine, he enjoys spending time with family, weightlifting, playing ice hockey and basketball, reading, writing poetry, and traveling. Dr. D'souza is highly rated in 10 conditions, according to our data. His top areas of expertise are Chronic Pain, Acute Pain, Complex Regional Pain Syndrome, Bone Marrow Aspiration, and Knee Replacement.

Chris Darrup is a primary care provider, practicing in Family Medicine in Middleburg, Pennsylvania. Dr. Darrup is highly rated in 26 conditions, according to our data. His top areas of expertise are Familial Combined Hyperlipidemia, Xanthoma, Postmenopausal Osteoporosis, and Conjunctivitis with Pseudomembrane.

Suzanne Greb is a primary care provider, practicing in Family Medicine in Lewisburg, Pennsylvania. Dr. Greb has been practicing medicine for over 34 years is highly rated in 25 conditions, according to our data. Her top areas of expertise are Sitosterolemia, High Cholesterol, Mucopolysaccharidosis Type 3A (MPS IIIA, Sanfilippo Syndrome A), and Mucopolysaccharidosis Type 3B (MPS IIIB, Sanfilippo Syndrome B). Dr. Greb is currently accepting new patients.