A study published in Health Affairs looked at out-of-network billing and negotiated payments for hospital-based physicians. Using data for 2015 from a large commercial insurer, researchers found that at in-network hospitals, 11.8 percent of anesthesiology care, 12.3 percent of care involving a pathologist, 5.6 percent of claims for radiologists, and 11.3 percent of cases involving an assistant surgeon were billed out of network. The ability to bill out of network allows these specialists to negotiate artificially high in-network rates. Out-of-network billing is more prevalent at hospitals in concentrated hospital and insurance markets and at for-profit hospitals. Study estimates show that if these specialists were not able to bill out of network, it would lower physician payments for privately insured patients by 13.4 percent and reduce health care spending for people with employer-sponsored insurance by 3.4 percent (approximately $40 billion annually).
- Out-Of-Network Billing And Negotiated Payments For Hospital-Based Physicians. Health Affairs. Dec 2019