So patients could be on the hook for “balance bills” up to $20,000 per ride, the study by a University of Michigan team in the May issue of Health Affairs shows.
Even if the dispatcher chooses a ground ambulance to drive a patient with a medical emergency to a hospital, the study finds that 79% of patients could get a surprise bill, with an average total around $550.
And even for patients who take ambulances for non-emergency reasons, arranged in advance with time enough to check insurance coverage, over half of patients could face a surprise bill for the out-of-network portion of the cost. On average, the study shows that bill could top $400.
The authors note that, while air ambulance charges are high, ground ambulance rides are far more common. As a result, out-of-network ground ambulance bills amount to a larger problem overall: $129 million per year, versus $91 million for out-of-network air ambulances. But annual out-of-network air ambulance bills are catching up quickly.
People with emergency medical needs should never let worries about surprise bills keep them from riding in any ambulance called by a 911 operator, physician or first responder, say the researchers behind the new study.
“But if you truly need an ambulance, concerns about cost should not get in the way. Arriving by ambulance, with a trained crew that can assess your needs, begin treatment and radio ahead to the hospital, means you’re more likely to be triaged and treated appropriately when you arrive.”
The new study can’t tell how many patients actually got a surprise bill – just how many could have. It’s based on five years’ worth of insurance claims from nearly 1.5 million ambulance transports, including nearly 26,000 by air in the 41 states with more than 50 flights. The study is based on data from patients with commercial insurance offered by one large national company.
Chhabra and his colleagues hope that their work will shine new light on the size and frequency of potential surprise bills from a type of care that federal and state policy fixes often overlook.
Lawmakers have been looking closely at “surprise” out-of-network bills in hospital care, but those occur in only 10 to 20% of cases. The new study shows that the risk of out-of-network bills in ambulance-based care is many times higher.
The study also challenges claims by the growing for-profit air ambulance industry that increased competition among service providers would hold down cost growth. From 2013 to 2017, the size of a potential surprise bill for air ambulance rides rose 15%, after adjustment for inflation, driven by an increase in the amounts air ambulance companies charged insurance companies for transport of patients.
Air ambulance companies have fought surprise billing legislation in court, using the federal Airline Deregulation Act passed in 1978, which was actually designed to increase competition in commercial airline travel.
Air ambulance companies operating on a for-profit basis have proliferated across the country since the deregulation of the air ambulance industry in 2008. The air ambulance service for U-M’s academic medical center, Michigan Medicine’s Survival Flight, is a nonprofit service that was established in 1984 and does not balance-bill patients.