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Welcome to Marshfield Labs

Marshfield Labs is one of the largest full-service private practice laboratory systems in the nation, reporting more than 25 million tests annually. As part of the Marshfield Clinic system our clients benefit from the infrastructure, expertise and reputation of a large private group medical practice and premier clinical research organization.

We share an exciting new environment where our scientists, clinicians and staff work side-by-side, accelerating the pace at which we are able to put our research into practice. We serve as a reference laboratory for health care facilities, veterinary practices, businesses and research clients across the nation.

Our highly accomplished staff will reach beyond just providing test results.