Call Us Free: 1-800-608-8387

Facilities and Hours

Samples may be brought directly to either location, or sent by U.S. mail or overnight courier service. Care should be taken to package the samples properly to assure that the samples do not spoil or leak in transit and to comply with applicable biosafety regulations.



Wisconsin Veterinary Diagnostic Laboratory


(Photo © Andy Manis)

Barron Lab

1521 E. Guy Ave.

Barron, WI. 54812

Phone: 715-637-3151

Toll Free: 800-771-8387

Fax: 715-449-5052

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Madison Lab

445 Easterday Ln.

Madison, WI. 53706

Phone: 608-262-5432

Toll Free: 800-608-8387

Fax: 608-504-2594


Google Maps Click Here




PARKING FOR WVDL-MADISON:  There are four parking stalls in Lot 4 reserved for WVDL guests. If those stalls are full, there are metered stalls in Lot 62. Day passes for Lot 62 are also available for purchase at the WARF building.


Office Hours At Both Locations

Monday though Friday, 7:45am until 4:30pm

State and university offices are closed on the following LEGAL HOLIDAYS:

  • January 1
  • Third Monday of January (Martin Luther King, Jr. Birthday)
  • Last Monday in May (Memorial Day)
  • July 4
  • First Monday in September (Labor Day)
  • Fourth Thursday in November (Thanksgiving Day)
  • December 24
  • December 25
  • December 31