The Mission health clinic is closed Dec. 24-30, 2019. If you need walk-in services over the holidays, please visit our Olathe health clinic (11875 S. Sunset Drive). The Olathe clinic will close at 2 p.m. on Dec. 24, 2019. Both health clinics will close at 3 p.m. on Dec. 31, 2019. All Johnson County government offices are closed Dec. 25, 2019 and Jan. 1, 2020.