Companion Care Needed - Full-time / Part-time

About who needs care: My father is a walking encyclopedia and 100% cognitively sharp. He is a WWII Navy veteran. He has worked out at the gym, lifting weights, for decades and walks 4 miles a day. Until just recently. He now needs help. About the care needs: Dad is holistic and very knowledgeable. He reads 1 -2 novels a day and plays solitaire on his computer. He doesn't hear well. He needs help moving around Services needed include: meal preparation, errands / shopping, and light housekeeping.