Our professionals at Lancaster Skin Center maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in dermatology.
Molly Casey, CRNP & Dr. William Andersen
William Andersen, MD
Dermatologist / Dermatopathologist / Mohs Micrographic Surgeon
The Lancaster Skin Center, P.C. was founded in 1997 by William Andersen, MD. Dr. Andersen graduated cum laude from Harvard College in 1983 with a degree in biochemistry. He then attended the Columbia College of Physicians and Surgeons and received his MD there in 1987. He stayed at Columbia Presbyterian Hospital for a residency in anatomic pathology and thereafter became a board certified pathologist. Dr. Andersen developed an interest in diseases of the skin while a pathologist and then performed a second residency in dermatology at the Boston University-Tufts training program, which he completed in 1994. He was elected to the highly selective Alpha Omega Alpha honor society during his residency. He then performed a fellowship in dermatopathology at Boston University and became an Assistant Professor of Dermatology, Pathology, and Laboratory Medicine at Boston University Medical Center. Dr. Andersen is quadruple board certified in dermatology, anatomic pathology, dermatopathology and Mohs micrographic surgery. He has published numerous articles in scholarly medical journals regarding his research in dermatopathology and dermatology.
Molly Casey, CRNP
Molly graduated Cum Laude from the University of Pittsburgh with a Bachelor of Science in Nursing degree. She then earned her Family Nurse Practitioner degree from Millersville University, performing her clinical rotations and studying dermatology alongside William K. Andersen, MD at Lancaster Skin Center. Prior to becoming a nurse practitioner, Molly was the Director of Nursing at Lancaster Skin Center for 6 years. She enjoys providing dermatologic care to patients in her native Lancaster County. Molly is a member of the Dermatology Nurses’ Association.