Vanderbilt University Medical Center: (615) 322-6154 Office hours: 8 am-5 pm, Monday-Friday If you receive a recorded message, listen to the options carefully or press 0 to be transferred to the operator.Ask to speak with the Adult Hospital administrator on call.; Vanderbilt Wilson County Hospital: (615) 443-2581; Vanderbilt Tullahoma-Harton Hospital: (931) 461-4681.