About who needs care: He has Parkinsons. Is a fall risk, so he needs to be watched. About the care needs: Able to do some physical therapy with him get him up and moving. Make sure he eats. Takes his medication, and personally hygiene. Brushes his teeth washed up. That sort of thing. Services needed include: companionship, and mobility assistance.
Mobility Assistance
Companionship
Or take a look at some other job options: