Dr. Keller is a board-certified dermatologist that specializes in general and complex dermatology with special interests in dermatologic urgent care and inpatient consultation. He provides a consistent and accessible dermatologic resource for providers who see patients in the hospital setting. Dr. Keller sees patients at the Department of Dermatology at the Center for Health & Healing and at both the OHSU and the Portland Veterans Affairs hospitals. 

At the OHSU Department of Dermatology, he aims to provide rapid and effective triage for urgently arising outpatient skin problems. In the hospital, he consults on patients with a broad range of conditions, from common (stasis dermatitis, cellulitis, shingles) to more serious (pyoderma gangrenosum, autoimmune blistering dermatoses, graft-versus-host disease). His research interests include the use of inpatient telemedicine, Stevens-Johnson syndrome, DRESS syndrome, calciphylaxis, and prurigo nodularis. One of his career focuses is increasing the amount of interaction and education between dermatology and the other medical specialties. He serves as the Associate Director of the Dermatology Residency Training Program.

In his free time, Dr. Keller enjoys time with his spouse, son, and shih-poo named Mo.