Dr.  Ellsworth’s practice focuses on the prevention of anal cancer in at-risk individuals. He has extensive experience in the performing of high-resolution anoscopy and the treatment of precancerous lesions of the anus. His other clinical interests include the treatment and prevention of HIV and other sexually transmitted infections. His research focuses on the screening and prevention of HPV-related cancers of the cervix, anus, and oral cavity. In his free time, he loves to cook, exercise with his dogs, and be outside.