I don't know how it would be paid for. It's probably prohibitively expensive. But I think it would be cheaper than the product of UBI*population. Poverty is very expensive for a country, and would be reduced by like 80% (made up number).
I'd draw money from my other pie in the sky policies, like ~100% marginal tax on wealth above $500M, and on incomes above $5M/yr. Realistically, I think this would cause wealth flight, so it would have to be global to work.
I don't expect any of this to happen in my lifetime. A more realistic hope is a UBI that you can't survive on, but that keeps you from poverty. Maybe a UBI that equals the poverty line. But then I'd want to keep the minimum wage.
What does it mean that it's an Indonesian hospital? Is that just it's name?