Pat Fry, president and CEO at Sutter Health, will retire Jan. 4, 2016, Sutter officials announced Tuesday. Chief operating officer Sarah Krevans will succeed him. Fry, 57, is leaving after more than 30 years with the Sacramento-based health system. During that time, the nonprofit grew from a collection of local hospitals to a Northern California powerhouse with 24 hospitals and annual revenue of more than $10 billion. He'll leave a company with strong financial footing and a sense of direction amid rapid changes in the industry due to health reform.