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The Gundersen Health System Laboratory is committed to excellence by providing quality service with integrity, efficiency and compassion.

Our Laboratory is a vital component to providing safe quality healthcare. We provide diagnostic and treatment information for patients throughout our 19-county service area.

All our medical clinics provide laboratory services for patients of all ages.

Many lab test results can be viewed through Gundersen's free, secure online patient portal, MyChart more quickly than if we mail them to you. If you'd like more information about MyChart, would like to sign up, learn how to download the app so you can access MyChart on your mobile phone, or find the forms to authorize access for your child's or dependent's records, go to MyChart Information.

Lab for Clinicians

Contact Us

La Crosse Lab: (608) 775-5057

Onalaska Lab: (608) 775-8128

what to expect

We've taken steps at all our locations to keep you and our staff healthy and safe. Here's what to expect when you visit us.

Stay safe