; and (2) drugs and biologics covered under Part B Durable Medical Equipment, Prosthetics, Orthotics and Supplies (DMEPOS). (e) Current or future infusion drugs Provided, nothing in this section shall be construed to change the coverage status of any current or future infusion drugs that meet the definition of a covered part D drug as defined at section 1860D–2(e) and which are paid under Medicare part D. (f) Referring providers Patients must be under the care of a physician, nurse practitioner, or physician assistant. (g) Safety and quality Consistent with standards of care found within commercial, Medicare Advantage, and State Medicaid programs with regard to sterile preparation of the drug to a final, useable form; timeliness of initiation of care; billing of drugs, items, and pharmacy services by a single entity; performing periodic assessments of patient satisfaction and collection and evaluation of quality outcome data