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Dr. Kollmann

Dr. Kenneth S. Kollmann


After attending dental school at SIU and my certificate in Pediatric Dentistry from the Children’s Medical Center, I began my career in the industry with my own practice back in 1986. I have always loved working with kids and helping them keep their smiles healthy ever since!

I live in Collinsville with my wife Sherry. We’ve been married for 35 years! Our daughter Kaitlyn grew up seeing how happy it makes me to help patients. And I’d like to think is why she decided to go into medicine herself. She is currently completing a residency in dermatology.

When not in the office, I enjoy traveling which includes hiking in National Parks around the country. My favorite movie is the Godfather.  My absolute favorite hiking place is Tetons in Jackson, WY. And my favorite travel spot is Alaska, on a cruise.


Southern Illinois University, Carbondale, Illinois – Bachelor of Science

Southern Illinois University School of Dental Medicine, Alton, Illinois – DMD

Children’s Medical Center, Dayton, Ohio – Certificate in Pediatric Dentistry

Professional Associations:

American Academy of Pediatric Dentistry

American Dental Association

Illinois State Dental Society

Illinois Society of Pediatric Dentistry

Madison District Dental Society

Turning 1? Time to come!

Kids who visit the dentist early grow up with healthier habits and feel more comfortable with their dentist! If your child has celebrated their first birthday, they’re ready for a visit to Gateway Little Smiles!