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Contact Us

La Crosse Lab: (608) 775-5057

Onalaska Lab: (608) 775-8128

Laboratory Hours

Our laboratory locations in La Crosse and Onalaska are open for patient lab draws during the following hours:

La Crosse Campus

  • 1st Floor Clinic Lab
    • Monday - Friday: 7 a.m. to 5:30 p.m.
    • Saturday: 7 a.m. to 11 a.m.
    • Observed holidays: closed
  • East Building Lab, 2nd Floor

Onalaska Clinic

  • Onalaska Lab
    • Monday - Friday: 7 a.m. to 9 p.m.
    • Saturday, Sunday, and Holidays : 9 a.m. to 5 p.m.
Love + Medicine

Every day, Gundersen Health System delivers great medicine plus a little something extra—we call it Love + Medicine.

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