West Tennessee Medical Group Prime Care (Henderson) 426 White Avenue, Henderson, TN 38340, USA (731) 989-2174 Get directions. General Hours. Monday 8 am - 5 pm. Tuesday 8 am - 5 pm. Wednesday 8 am - 5 pm. Thursday 8 am - 5 pm. Friday 8 am - 5 pm. Saturday Closed. Sunday Closed. Questions? Call 731-541-5000..