Spiros Hatiras, president and CEO of Holyoke Medical Center and Valley Health Systems, announced the appointment of Dean Vitarisi as chief financial officer (CFO) at Holyoke Medical Center and Valley Health Systems. “We are proud to welcome Dean to our leadership team here at Holyoke Medical Center and the affiliates of Valley Health Systems. He brings with him over 20 years of hospital finance experience and will play an integral part in the financial management of our organization,” Hatiras said.