Looking for Providence St Mary Medical Center in Walla Walla, WA? We help you request your medical records, get driving directions, find contact numbers, and read independent reviews. ... Hospitals ⇢ WA ⇢ Providence St Mary Medical Center. Get a ride. 3 MIN AWAY. $8-10 on UberX. Get a ride. Lyft in 4min. $8-10. 401 W Poplar St, Walla Walla ....