About Dr. Zimmermann

Dr. Kolleen Zimmermann earned her B.S. in Microbiology from the University of Wisconsin, Oshkosh before she received her medical degree from the Medical College of Wisconsin. She went on to complete an internal medicine internship there and later completed her residency in dermatology at the University of Iowa.

In practice since 1999, Dr. Zimmermann is a member of the Wisconsin Medical Society, WI Dermatology Society and American Academy of Dermatology. A board-certified dermatologist, she was the 2005 keynote speaker for the Brown County Women’s Cancer Coalition.

About Colleen Van Egeren PA-C

Colleen Van Egeren is a board certified Physician Assistant. She earned her Bachelor's degree from Marquette University and went on to earn her Master's degree in Physician Assistant Studies at Rosalind Franklin University in North Chicago. Colleen is a member of the Society of Dermatology Physician Assistants and the American Academy of Physician Assistants.

Colleen has had extensive training in dermatology as well as a variety of other areas of medicine prior to joining The Dermatology Clinic S.C. She did her dermatology training in Naperville, IL, but is pleased to be back practicing in her hometown of Green Bay.

Office Hours

Monday-Wednesday: 8:30 a.m. – 5:00 p.m.
Thursday: 8:30 a.m. – 6:30 p.m.
Friday: 9:00 a.m. – 4:30 p.m.

Map & Directions

Our office is located at:
715 Superior Road, Suite 120 • Green Bay, WI 54311

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Our Mission

The mission of Dermatology Clinic S.C. is to be the premier provider of general and cosmetic dermatology care in the Green Bay area and surrounding communities.

Financial Information

For your convenience, we accept Visa or MasterCard. Full payment for all cosmetic services are required at the time services are rendered unless previous arrangements are made. Ask us about special discounts we have on certain packages.

Additionally, we will submit all insurance claims for you. We are a preferred provider with Prevea PPO, WPPN, AHC, WEA, Unitedhealth Care, Arise, Blue Cross/Blue Shield and Aurora. Please contact your insurance company to ensure that our providers are listed under your specific network. We will fully attempt to help you receive full insurance benefits; however, you are personally responsible for your account, and we encourage you to contact us if your policy has not paid within 30 days.

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