Can I use my Medisave to pay my dad's hospital bill?

Yes, you can use your Medisave for immediate family, spouse, parents, children, grandparents, siblings. I did exactly this when my mum was hospitalised. Key things I learned: there are withdrawal limits per day of stay and per surgical procedure under the Medisave rules, so it may not wipe the whole bill, it covers up to the applicable limit and you top up the rest in cash. The hospital business office handles the deduction, you just fill a Medical Claim Authorisation form and provide your details. Also check if your dad has MediShield Life or an Integrated Shield Plan, that should be the first payer for large inpatient bills, with Medisave covering deductible and co-insurance. Speak to the medical social worker at the hospital, they'll walk you through the payer stack and any assistance schemes if the balance is tough.