Main emergency helpline 112
University Hospital Split (KBC Split) is the biggest and most comprehensive hospital in Split.
Travel insurance isn't mandatory, but recommended. Choose a plan that offers coverage for Covid-19 and unexpected quarantine. As mentioned, treatment in private hospitals can be expensive if you don't have insurance coverage.
*this information is taken from the official CDC website There are no vaccinations required for entry to Croatia, your standard vaccinations should be enough.
Yes, almost everywhere in Croatia.