But Michael Bergeron, executive director of the National Youth Sports Health and Safety Institute, said the volume of patients they attract could have residual benefits for the bottom line.
“Concussion clinics might be seen as a loss leader for the halo effect they bring the institution,’’ Bergeron said. ‘‘People recognize you as an authority offering a timely service that is very much in the news. It might make them consider you for other treatments, too. It’s another dimension to promote on your website.”