Mr. Grogan, an adviser to President Donald Trump who led several healthcare policy initiatives during his roughly four-year tenure, said his resignation was planned. He joined the administration at the start of 2017.
Mr. Grogan and HHS Secretary Alex Azar have reportedly had differences of opinion, though Mr. Grogan said his departure was unrelated to Mr. Azar. Mr. Grogan said he is leaving the administration on good terms.
As the director of the White House Domestic Policy Council since last year, Mr. Grogan led health policy initiatives to lower prescription drug prices and curb surprise billing. More recently, he was involved in the federal COVID-19 response, according to Politico.
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