Dr. Darryl K. Guistwite

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 rated as a Distinguished provider by MediFind in the treatment of Peripheral Neuropathy. His top areas of expertise are Chronic Pain, Acute Pain, Complex Regional Pain Syndrome, Bone Marrow Aspiration, and Vertebroplasty.

Kimberly Kolonich is a primary care provider, practicing in Family Medicine in State College, Pennsylvania. Dr. Kolonich is rated as an Advanced provider by MediFind in the treatment of Peripheral Neuropathy. Her top areas of expertise are Chronic Cough, Peripheral Neuropathy, Oligodendroglioma, and Pediatric Low-Grade Glioma (pLGG).

Daniel Mateer is a primary care provider, practicing in Family Medicine in Duncannon, Pennsylvania. Dr. Mateer is rated as an Advanced provider by MediFind in the treatment of Peripheral Neuropathy. His top areas of expertise are Hyperthyroidism, Peripheral Neuropathy, Thyroid Storm, and Hypothyroidism.