Is a Communist and a Socialist the same thing?

Republicans sure make it sound like it’s the same thing.
Shouldn’t the government provide certain things for it’s citizens?
Like public education, good.
Like public fire protection, good.
Like public police force, good.
Like a military, good.
So why universal (affordable health care), bad?
So please tell me why for the people that want the last one as well all of a sudden turn them into socialists?