Dr. Gregg S. Zernich

Randy Kreider, MD, is a family medicine physician. He is certified by the American Board of Family Medicine. Dr. Kreider received his medical degree from the Pennsylvania State University College of Medicine and completed his family medicine residency at Harrisburg Hospital. Dr. Kreider’s clinical interests include health care for chronic diseases such as heart disease and  diabetes, and preventive medicine. He is a member of the American Academy of Family Physicians and formerly, a physician with the United States Air Force. Dr. Kreider is rated as an Advanced provider by MediFind in the treatment of Cerebral Hypoxia. His top areas of expertise are Cerebral Hypoxia, Memory Loss, Type 2 Diabetes (T2D), Hip Replacement, and Gastrostomy.

Jonathan Powell, MD, specializes in family medicine and is certified by the American Board of Family Medicine. He practices at Renaissance Family Practice-UPMC and is affiliated with UPMC St. Margaret. He completed his residency at the University of Pittsburgh School of Medicine. Dr. Powell is rated as a Distinguished provider by MediFind in the treatment of Cerebral Hypoxia. His top areas of expertise are Non-Langerhans-Cell Histiocytosis, Hemophagocytic Lymphohistiocytosis, Multicentric Reticulohistiocytosis, and Reticulohistiocytoma.

Kathryn Ryan is a primary care provider, practicing in Family Medicine in Saxonburg, Pennsylvania. Dr. Ryan is rated as an Advanced provider by MediFind in the treatment of Cerebral Hypoxia. Her top areas of expertise are H1N1 Influenza, Raynaud Phenomenon, Cerebral Hypoxia, and Familial Combined Hyperlipidemia.