Dr. Marcia E. Johnson, the president of Deerfield Dermatology Associates, Ltd., is a board certified dermatologist.  She practices general adult and pediatric dermatology with a special interest in the diagnosis and treatment of skin cancer.  Dr. Johnson graduated with honors from Morris Brown College in Atlanta, Georgia with a Bachelor of Science Degree in Biology.  She received her Ph.D. from the University of Michigan in Ann Arbor, Michigan, where she held a Ford Foundation Graduate Fellowship and received the Samuel J. Mitchell Award for Outstanding Graduate Student Research in Cellular and Molecular Biology.  She was also granted the Association for Women in Science Pre-doctoral Research Award.  She completed post-doctoral studies at the Memorial Sloan-Kettering Cancer Center in New York, where she held a National Institutes of Health Post-doctoral Fellowship.  She received her Doctor of Medicine from Wayne State University School of Medicine in Detroit, Michigan.  While attending Wayne State, she also served on the research staff at the Michigan Cancer Foundation. She completed her medical internship at the Detroit Medical Center and her dermatology residency at Cook County Hospital in Chicago.

Dr. Johnson is a member of the American Academy of Dermatology, The Chicago Dermatological Society, and The Lake County Medical Society.  She has staff privileges at the NorthShore University Health System including Highland Park, Glenbrook, and Evanston Hospitals.  Dr. Johnson was in private practice in Oak Brook and in Naperville, Illinois before joining Deerfield Dermatology Associates, Ltd.

Dr. Johnson is a theater enthusiast.  She volunteers with local civic organizations to promote literacy among young children and enjoys her warm relationship with her son who is beginning his career in investment banking.