In House M.D., which physician specializes in oncology?

James Wilson is the physician who specializes in oncology in House M.D.

Wilson is the head of the oncology department at Princeton-Plainsboro Teaching Hospital and treats patients with cancer. His specialty also shapes his role in the series: he often brings a compassionate, patient-centered perspective to difficult decisions and is personally familiar with the consequences of serious illness.

He is best known narratively as Gregory House’s closest friend. Their relationship drives many stories, with Wilson frequently acting as House’s confidant, critic, and emotional anchor. Wilson’s professional judgment is generally more cautious and collaborative than House’s, although he occasionally bends rules because of his friendship or concern for patients.

Eric Foreman and Robert Chase are diagnosticians who work with House, while Lisa Cuddy is an endocrinologist and hospital administrator. Those characters have medical expertise, but oncology is specifically Wilson’s field.