Dr. Sara D. Herman

Johann Gudjonsson, MD, PhD is the Arthur C. Curtis Professor of Molecular Skin Immunology and the Frances and Kenneth Eisenberg Emerging Scholar of the Taubman Medical Research Institute. A graduate of the University of Iceland Medical School, he completed his internship and dermatology residency training at the University of Michigan. Dr. Gudjonsson has served on the faculty of the University of Michigan Department of Dermatology since 2008. He provides general medical dermatology patient care at the University of Michigan Taubman Center and maintains clinical and research interests in inflammatory and autoimmune disorders involving the skin.Dr. Gudjonsson came to the U-M in 2003 as part of an innovative research residency training program. Building upon investigative dermatology training completed in Iceland, Dr. Gudjonsson has been performing basic immunological and genetic work on psoriasis at the U-M. Dr. Gudjonsson's primary research focus is basic immunological and genetic research on psoriasis, with projects directed at improving the diagnosis and treatment of psoriasis. He received the 2007 Young Investigator Award from the American Academy of Dermatology, was named the 2018 Rising Star Lecturer for the Society for Investigative Dermatology and was recipient of the American Skin Association Research Achievement Award in Psoriasis in 2021. Dr. Gudjonsson's research has been supported by research awards from the National Institutes of Health (NIH), the American Skin Association, Dermatology Foundation, Doris Duke Foundation, among others. Dr. Gudjonsson is highly rated in 40 conditions, according to our data. His clinical expertise encompasses Benign Chronic Pemphigus, Psoriasis, Darier Disease, Cutaneous Lupus Erythematosus (CLE), and Vitrectomy. Dr. Gudjonsson is board certified in Dermatology. Dr. Gudjonsson is currently accepting new patients.

Gregory Messenger is a Dermatologist practicing medicine in Lansing, Michigan. Dr. Messenger is highly rated in 135 conditions, according to our data. His clinical expertise encompasses Actinic Keratosis, Warts, Seborrheic Keratosis, and Basal Cell Skin Cancer. Dr. Messenger is currently accepting new patients.

After receiving my M.D. and Ph.D. at the University of Alabama at Birmingham, I came to the University of Michigan for residency training in Anatomic Pathology. During my residency and subsequent Dermatopathology fellowship, I became interested in mechanistic studies of cutaneous and soft-tissue malignancies. Upon completion of my fellowship in June 2012, I accepted a faculty position at UMHS with joint appointments in the Departments of Dermatology and Pathology, in which I continue to investigate molecular events in the pathogenesis of Merkel cell carcinoma and other cutaneous malignancies, while maintaining clinical effort in dermatopathology and molecular dermatopathology. Dr. Harms is highly rated in 22 conditions, according to our data. His clinical expertise encompasses Merkel Cell Carcinoma, Tieche-Jadassohn Nevus, Melanoma, and Basal Cell Skin Cancer. Dr. Harms is board certified in Dermatopathology and Pathology-Anatomic. Dr. Harms is currently accepting new patients.