I check last year data about medical check up that have budget 4,300 baht/person and 11,079 baht for Furihata-san
My idea for this year
Bangkokchristian Hospital (near office) have promotion for check up upper 20 persons only.
So I think staffs can to chosse hospital and program by weself, But NSTL will offer actual or maximum 4,300 baht/person (same last year)
Maybe staffs choose hospital near home for check up on holiday.
However any your decision are respected.