An activist investor is pushing Surgery Partners Inc. (Nasdaq: SGRY) to overhaul its strategy, arguing the company should sell its surgical hospitals and focus solely on its ambulatory surgery center (ASC) business. Ortelius Advisors issued an open letter to Surgery Partners shareholders Tuesday criticizing the company’s performance and calling for sweeping operational, financial and governance changes. In its letter, the New York-based investment firm said Surgery Partners has failed to … [Read more...]