This will depend on whether you receive chemotherapy as an inpatient or outpatient. If you receive it as an inpatient, Medicare Part A will cover the costs once the deductible is met. If you receive it as an outpatient, Part B will cover 80% of the costs after you've paid the Part B deductible.This will depend on whether you receive chemotherapy as an inpatient or outpatient. If you receive it as an inpatient, Medicare Part A will cover the costs once the deductible is met. If you receive it as an outpatient, Part B will cover 80% of the costs after you've paid the Part B deductible.