Washington (CNN) The White House physician assigned to Vice President Mike Pence, Jennifer Pena, has resigned, his office told CNN in a statement Friday. Pena worked in the White House Medical Unit.

"The vice president's office was informed today by the White House Medical Unit of the resignation. Physicians assigned to the vice president report to the White House Medical Unit and thus any resignation would go entirely through the Medical Unit, not the vice president's office," Alyssa Farah, Pence's press secretary, said in a statement to CNN.

This comes after CNN reported Tuesday that Pence's doctor privately raised alarms within the White House last fall that President Donald Trump's doctor Ronny Jackson may have violated federal privacy protections for a key patient -- Pence's wife, Karen -- and intimidated the vice president's doctor during angry confrontations over the episode.

A White House official later told CNN they felt Pena had misrepresented the extent of Jackson's actions.

Trump nominated Jackson to lead the Department of Veterans Affairs, but Jackson withdrew his nomination last week amid burgeoning allegations of professional misconduct.

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