Contact Us OUR OFFICE Summit Medical Group of Oak Ridge850 Briarcliff Ave, Oak Ridge, TN 37830 Phone 865-483-3172 After Hours Emergencies 865-483-3172 Option #1 Office Hours Monday – Friday – 7:30am – 6:00pm Holiday ClosingsNew Years Day, Good Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Black Friday, Christmas Eve, Christmas Day