Important CURBSIDE COVID TESTING Update. Please note that St. Luke curbside COVID testing services have moved to the East side of the St. Luke Ronan Clinic (127 6th Ave. SW). Curbside drive-up testing is available via appointment by calling (406) 676-3600, Monday through Friday, 8:30 a.m. to 5 p.m. COVID testing is available on Saturdays and Sundays, from 11 a.m. to 12:30 p.m. on a walk-in ...Open Positions‧Pay My Bill‧myHealth Portal Enrollment‧All Providers‧About‧Services.