No and Yes.
If the Parish doesn't have the power of general competence, then they may not give funds to a single individual (Except as a prize).
If they do, then yes you can.
But be aware of the unintended consequences of doing so, would other similar villagers with a health complaint, or villagers who have MND, but not active in the village expect similar treatment from the Parish, the basis you make the grant/gift would need to be very clear.