On May 15, Mr. Hadley publicly warned North Korea for the first time against testing, saying the United States and several Pacific powers would take punitive action.
The union has argued against stricter testing, saying that a stringent regimen of testing was a result of the athletes not having collective-bargaining power.
Nick Harris, the founder and chief executive of IGeneX, defended his company's testing, saying that the federal guidelines miss many patients who have Lyme disease.
Leading sickle-cell researchers have also resisted calls for mandatory testing, saying that changing training practices for everyone would minimize the risks to athletes with the trait.
The insurance company had denied the claim for gastrointestinal testing, saying that because Ben's behavior problems were related to autism, the testing was not covered.
"We're reducing the reliance on high-stakes testing, saying you shouldn't tie an entire evaluation to one test," Mr. Hamilton said.
