Leonard Kerwin, M.D.
Practice: Associated Dermatologists
Specialty: Dermatology
Office locations: Farmington Hills, Novi, West Bloomfield
Dr. Leonard Kerwin, M.D. completed his undergraduate education at the University of Michigan and medical school at Wayne State University in Detroit. Following medical school, he worked on malignant melanoma research at the Laboratory of Molecular Dermatology in the Barbara Ann Karmanos Cancer Institute, and then went on to complete his internship at Ascension Providence Rochester Hospital (formerly Ascension Crittenton Hospital) in Rochester Hills, Michigan. Dr. Kerwin completed his dermatology residency at Wayne State University before completing his fellowship in procedural dermatology and Mohs Surgery in Philadelphia, Pennsylvania. He is also a Fellow of the American College of Mohs Surgery.
Dr. Leonard Kerwin, M.D. completed his undergraduate education at the University of Michigan and medical school at Wayne State University in Detroit. Following medical school, he worked on malignant melanoma research at the Laboratory of Molecular Dermatology in the Barbara Ann Karmanos Cancer Institute, and then went on to complete his internship at Ascension Providence Rochester Hospital (formerly Ascension Crittenton Hospital) in Rochester Hills, Michigan. Dr. Kerwin completed his dermatology residency at Wayne State University before completing his fellowship in procedural dermatology and Mohs Surgery in Philadelphia, Pennsylvania. He is also a Fellow of the American College of Mohs Surgery.
Associated Dermatologists - Farmington Hills
Suite 140
Farmington Hills, MI 48334
DOCS Dermatology Novi
Suite 370
Novi, MI 48377
DOCS Dermatology West Bloomfield
Suite 120
West Bloomfield, MI 48322
Dr. Leonard Kerwin, M.D. completed his undergraduate education at the University of Michigan and medical school at Wayne State University in Detroit. Following medical school, he worked on malignant melanoma research at the Laboratory of Molecular Dermatology in the Barbara Ann Karmanos Cancer Institute, and then went on to complete his internship at Ascension Providence Rochester Hospital (formerly Ascension Crittenton Hospital) in Rochester Hills, Michigan. Dr. Kerwin completed his dermatology residency at Wayne State University before completing his fellowship in procedural dermatology and Mohs Surgery in Philadelphia, Pennsylvania. He is also a Fellow of the American College of Mohs Surgery.
In addition to continuing to serve patients at Associated Dermatologists, Dr. Kerwin teaches at the John D. Dingell Veterans Affairs Medical Center, affiliated with the Wayne State University Department of Dermatology. He is also on staff at Corewell Health, Huron Valley Hospital, and St. John Providence. Dr. Kerwin was named by the Residents of the Department of Dermatology at Wayne State Faculty of the year in 2016 and 2025. Additionally, he continues to educate and serve as a mentor for City Year Detroit. He has been voted “Top Doc” every year since he started at the practice in 2015.

Conscientious, courteous and professional. Great care, great staff.
Very personable, very knowledgeable, and very professional. I would highly recommend Dr. Kerwin to anyone needing dermatology surgery.
Great experience w Dr. Kerwin and all staff.
The office is well organized and they’re very quick
Excellent surgery
My Regular Dermatologist sent me to him and I see why ! 5 Stars
Dr and staff were great!
Dr. Kerwin was seriously amazing! He had the best bedside manner and actually took the time to listen to everything I was saying. He was so quick to understand my concerns and went over all the different options with me, including the pros and cons of each, instead of just telling me what to do. I never felt rushed or dismissed at all. He was very knowledgeable, honest, and made me feel completely comfortable with the plan we decided on. I’m honestly so happy I saw him and would definitely recommend him to anyone
Leonard Kerwin was absolutely excellent! He removed a cyst from my scalp, and I couldn’t have asked for a better experience. He was professional, knowledgeable, gentle, and took the time to explain the procedure and answer my questions. He made me feel comfortable and confident that I was in good hands. I truly appreciate the care and kindness showed he me throughout the entire process. I would highly recommend Dr. Kerwin to anyone looking for an excellent dermatologist! ❤️
So kind and has a magic touch! No pain at all during procedure!