On Friday, the smallest surviving baby born at a Walnut Creek hospital finally went home with her family after a rough start in life. Weighing in at less than a pound, Baby Meadow is the smallest surviving baby born at John Muir Health’s Walnut Creek Medical Center. Weighing just 350 grams, Meadow is the smallest surviving baby ever born at John Muir Health in Walnut Creek. Creamer says her baby had a condition that prevented her from getting the nutrients she needed while in the womb. That’s when she turned to doctors at John Muir Health, who said they had the technology and expertise to give her a fighting chance.