Mr. Ostasewski joined GBMC HealthCare in January 2026 as executive vice president and CFO, bringing more than 30 years of healthcare finance leadership experience spanning nonprofit, academic and multi-facility health systems. Mr. Ostasewski most recently served as vice president of finance and CFO for Hershey, Pa.-based Penn State Health Milton S. Hershey Medical Center, Penn State Children’s Hospital and Penn State Health Medical Group, where he oversaw $3.5 billion in operating revenue and led initiatives that improved operating income by more than $20 million in six months. Throughout his career, he has held leadership roles at Columbia, Md.-based MedStar Health, Pittsburgh-based UPMC, Harrisburg, Pa.-based Pinnacle Health System and Dallas-based Tenet Healthcare, building a track record in revenue cycle optimization, physician compensation models and strategic planning. A Baltimore native, Mr. Ostasewski also brings a clinical perspective to the role, having trained as a nurse prior to his finance career. He is also a decorated U.S. Army veteran.
