Dr. Denise Mahoney

Dr. Denise Mahoney is a resident physician at New Sacred Heart Hospital, and also student advisor and teaching assistant at Winston University. She started as an intern at Sacred Heart Hospital during J.D.'s eighth year and bothered him with her insensitive personality.

Denise is portrayed by Eliza Coupe who appears in ten episodes of Season Eight and all thirteen Season Nine episodes. She is first seen in the webisode "Our Intern Class" and was last seen in "Our Thanks". It is assumed she is still at New Sacred Heart and Winston University.