WASHINGTON — Dr. Ronny L. Jackson, who withdrew from consideration for secretary of veterans affairs last week amid allegations related to his professional conduct, is unlikely to return to his role as the president’s doctor, according to a person familiar with the matter.

It was unclear if Dr. Jackson, a Navy rear admiral, would remain in the White House in any capacity or if he would retire from the military.

President Trump had nominated Dr. Jackson in March for advancement to a two-star admiral. His promotion is still pending, and senators have indicated that they will scrutinize it in light of recent claims that he oversaw a hostile work environment, loosely distributed prescription medications and drank while on official White House travel.

Sean Conley, a Navy officer who took over for Dr. Jackson after he was nominated in March, is expected to stay on as Mr. Trump’s primary doctor.