Meet Our Team


David J. Mann, MD

Dr. David J. Mann is a highly skilled, board-certified dermatologist and valued member of our team at Illinois Dermatology Institute, joining the staff in 2010 at the completion of his extensive training. Dr. Mann specializes in skin cancer screening and prevention, atypical moles, acne, melanoma, complex medical dermatology and a wide range of surgical and laser treatments.

Dr. Mann first graduated Summa Cum Laude from the University of Illinois with his Bachelor’s degree in Finance, before receiving his medical degree from the Mayo Clinic College of Medicine, for which he received the Dean’s Scholarship Award. Upon graduating, Dr. Mann completed his internship in Internal Medicine at NorthShore University HealthSystem through Northwestern University, where he was honored as Intern of the Year. His residency training was completed in Dermatology at the University of Chicago in 2010.

Throughout his extensive training, Dr. Mann’s work has appeared in numerous publications, abstracts and presentations regarding research studies in the field of dermatology. He is also a member of several leadership committees for the Chicago Dermatological Society and serves on the staff at NorthShore University HealthSystem.

In his spare time, Dr. Mann enjoys martial arts, tennis, traveling and mentoring.


Erin K. Melley, PA-C

Erin Melley, PA-C joined the IDI team in 2001. She graduated cum laude from Georgetown University and received her Masters degree in Physician Assistant Studies from Rosalind Franklin University of Medicine and Science. Erin is board certified by the National Commission on Certification of Physician Assistants (NCCPA) and licensed by the state of Illinois to practice and prescribe medicine. She is a fellow and member of both the Society of Dermatology Physician Assistants (SDPA) and the Illinois Society of Dermatology Physician Assistants (ISDPA).

She has received intensive specialized training in dermatology from her physician colleagues over the last decade. Erin is qualified to perform a comprehensive dermatological examination, diagnose, treat, and prescribe appropriate therapy for all dermatologic conditions. She is skilled and experienced at performing biopsies, cryotherapy, photodynamic therapy (PDT), Blu-U treatment, and chemical peels. She enjoys caring for patients of all ages, connecting with and educating them about their skin. Erin has special interests in adolescent dermatology and acne therapy, and has a weekly Tuesday evening clinic dedicated to these patients. Erin is an asset to our practice and has further enhanced the accessibility and delivery of quality care to our patients.

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