Medicare Advantage Insurers Made Nearly 50 Million Prior Authorization Determinations in 2023
Jeannie Fuglesten Biniek, Nolan Sroczynski, Meredith Freed, and Tricia Neuman; kff.org
Virtually all enrollees in Medicare Advantage (99%) are required to obtain prior authorization for some services – most commonly, higher cost services, such as inpatient hospital stays, skilled nursing facility stays, and chemotherapy. This contrasts with traditional Medicare, where only a limited set of services, including certain outpatient hospital services, non-emergency ambulance transport, and durable medical equipment, require prior authorization.
Prior authorization requirements are intended to ensure that health care services are medically necessary by requiring approval before a service or other benefit will be covered. Medicare Advantage insurers typically use prior authorization, along with other tools, such as provider networks, to manage utilization and lower costs. This may contribute to their ability to offer extra benefits and reduced cost sharing, typically for no additional premium, while maintaining strong financial performance. At the same time, prior authorization processes and requirements, including the use of artificial intelligence to review requests, may result in administrative hassles for providers, delays for patients in receiving necessary care, and in some instances, denials of medically necessary services, such as post-acute care.
