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About Us
Welcome To
The Derm Collective
North Shore
Our new dermatology practice, co-founded by board-certified dermatologists Dr. Rachel Pritzker and Dr. Todd Johnson, offers premier clinical dermatologic care specializing in general and surgical dermatology, Mohs surgery, and aesthetics. We prioritize preventive care and support healthy skin aging, aiming to be your dedicated resource in achieving and maintaining optimal skin health.
Todd A Johnson, MD
Board-Certified Dermatologist | Mohs Micrographic Surgeon
A graduate of the University of Illinois Medical Center with over 20 years of clinical experience in both community and academic settings, Dr. Johnson is a distinguished board-certified dermatologist with expertise in general dermatology, surgical dermatology, and Mohs micrographic surgery. Known for his patient-centered approach, he provides comprehensive care that prioritizes patient comfort and understanding, fostering a trusting environment where patients feel heard and valued
Dr. Johnson is a fellow of the American Academy of Dermatology and the American Society of Mohs Surgery. He is also an active member of the American Society for Dermatologic Surgery, American Academy of Dermatology, International Dermoscopy Society and the Chicago Dermatologic Society
His extensive training and expertise enable him to deliver exceptional care for a wide range of skin conditions, utilizing cutting-edge techniques and personalized treatment plans. He specializes in diagnosis and treatment of skin cancer using techniques such as dermoscopy, whole body skin mapping, topical preventive and therapeutic chemotherapy and Mohs micrographic surgery.
Outside of his practice, Dr. Johnson is passionate about conservation and land stewardship in Northern Illinois and the Driftless area of Southwest Wisconsin. He and his wife, a biochemistry professor at the University of Illinois, enjoy family life with their daughter and two rescue dogs, Petey and Cash.
Specialties: Skin Cancer Diagnosis, Detection, and Treatment; Dermatologic Surgery, MOHS Micrographic Surgery, Dermoscopy, General Dermatologic Care, Neurotoxin procedures.
Rachel N Pritzker, MD
Fellowship-Trained, Board-Certified Dermatologist
Dr. Pritzker graduated Phi Beta Kappa with a bachelor’s degree from Emory University where she was recognized as a member of the Alpha Omega Alpha Honor Society, and earned her medical degree at Rush University. She completed her dermatology residency at Cook County Hospital in Chicago, followed by a distinguished fellowship in Laser, Cosmetic, and Dermatologic Surgery at SkinCare Physicians in Boston, collaborating with clinical faculty from the dermatology departments of Harvard and Yale.
An active voice in the dermatologic community, Dr. Pritzker frequently speaks at both local and national dermatology meetings and has published numerous articles in peer-reviewed journals and dermatologic textbooks.
Dr. Pritzker is a member of several professional organizations, including the American Academy of Dermatology, American Society for Dermatologic Surgery, Women’s Dermatologic Society, the American Society for Laser Medicine & Surgery, and the Global Aesthetics Conference. In addition to her clinical practice, she serves as a consulting physician at Cook County Hospital and is dedicated to teaching dermatology residents, sharing her knowledge and passion for the field.
Dr. Pritzker was raised in the North Shore of Chicago, where she currently resides with her husband and children. In her free time, she enjoys spending time with her family, traveling, and hiking.
Specialties: General dermatology, dermatologic surgery, cosmetic injectables (Botox Cosmetic, Dysport, Daxxify, RHA fillers, Juvéderm, Restylane, Sculptra, Radiesse), and laser procedures.
