The Clinic is a location in Harvest Moon: Magical Melody.
Dr. Alex works here. At the beginning of the game, he is the only one who works here. As you befriend him, Martha will move in to town to assist him. After shipping 30 herbs through the shipping bin, the sanatorium will be built. This causes Martha's granddaughter Gina to move in with Dia.
You will wake up in the clinic under Alex's care if you run out of stamina and pass out. Gina and Martha work to help with chores, and Martha will provide you with rucksack upgrades.
They are open every day except for Wednesdays and holidays, from 6am to 9pm.