The department has a state-of-the-art narrow band UVB / UVA phototherapy box for the treatment of psoriasis, vitiligo, chronic itching, cutaneous T-cell lymphoma (CTCL) and certain other skin diseases. Phototherapy treatments are conducted & monitored by Deborah Deierlein, our nurse practitioner.  The Phototherapy service is directed by Dr. Marcia Tonnesen who has many years of clinical experience in this area.