HB 3321 regulates facility fees and billing practices by health care entities and health care systems, prohibiting the charging of facility fees for certain outpatient health care services provided outside a hospital campus. The bill mandates transparent disclosures of facility fees to patients at the time of scheduling, including signage and billing notices. It establishes a facility fee waiver process for patients who qualify for financial assistance and requires health care entities to report annually on facility fee collections. The bill also mandates the use of national provider identifiers on claims to improve transparency in health care transactions and prohibits billing practices that obscure the actual location of services. The Health and Human Services Commission is tasked with implementing and enforcing these regulations, with penalties for noncompliance​.