"""Consumers in New York are protected from surprise bills when treated by an out-of-network provider at a participating hospital or ambulatory surgical center in their health plan’s network. Additionally, consumers with health insurance coverage provided by an insurer or HMO are protected from surprise bills when a participating doctor refers them to a non-participating provider. Consumers in New York are also protected from bills for emergency services in hospitals, including inpatient care following emergency room treatment."""

Note that part of balance billing is from in network providers who are billing the difference, that doesnt seem to be covered in the above ban from what I'm reading.