His areas of expertise include the following: cancer, gamma knife radiosurgery, and spine surgery procedures. He honors several insurance carriers, including Aetna EPO, Blue Cross/Blue Shield, and Coventry. Before completing his residency at a hospital affiliated with the University of Chicago, Dr. Masnyk attended medical school at Johns Hopkins University School of Medicine. Dr. Masnyk speaks Ukrainian. His professional affiliations include Northwestern Medicine Central DuPage Hospital and Northwestern Medicine Regional Medical Group. His practice is open to new patients.