It's one of Northern California's oldest health care systems, taking its name from Sacramento pioneer John Sutter and its first hospital site near Sutter's Fort. Today, Sutter Health employs about 48,000 people and runs 24 hospitals and 33 outpatient surgery centers in more than 100 cities and towns in California and Hawaii. This month, it ushered in its first woman CEO, Sarah Krevans, a longtime health care executive. In her buttery-yellow offices at Sutter's headquarters on Sacramento's Garden Highway, Krevans, 57, talked with The Sacramento Bee about her new job, medical technology and other interests.