Hospitals ⇢ OK ⇢ Mercy Hospital Ada. Get a ride. 3 MIN AWAY. $8-10 on UberX. Get a ride. Lyft in 4min. $8-10. 430 N Monte Vista St, Ada, OK 74820, USA (580) 332-2323. Website. Patient Portal. Order Your Records. Emergency? Dial 911 or go to your nearest emergency room. Services. Emergency: Emergency Department. Orthopedic: Joint Replacement ....