If the toenail clipping and foot care is medically required due to bad toenail fungus then Medicare may cover the cost to have the toenails professionally clipped and for the toenail fungus to be professionally cured.
But if the Toenail Clipping is just for cosmetic reasons then Medicare will not cover the cost to have your Toenails Clipped.
However since Medicare doesn't always cover routine foot care it can be hard to say if Medicare will actually cover the cost of Toenail clipping.