Contact Us

Contact our call center

Technically trained staff can assist you with courier, supplies, testing, and web portal setup. Board-certified pathologists and clinical PhDs are available to consult with you on difficult cases.

Contact us

Call: (800) 222-5835

Marshfield Labs
1000 North Oak Avenue
Marshfield, WI 54449

Additional Support

Test reference manuals

As part of a large medical and research institution, we offer a comprehensive menu of laboratory tests.

We have test directories available for:

Clinical lab services


Supplies and services

Marshfield Labs offers the supplies you need to collect samples for testing, along with courier or overnight delivery options to transport specimens to our testing facility.

To request supplies or courier services, please complete our contact us form.


Portal account access

With your Marshfield Labs’ portal account you can: order tests, view test status, view and download results, order supplies, schedule a courier, trend patient results, and view invoices.


Account access support

To sign up for a new account or for technical help:

(800) 222-5835


Quick guides

For assistance on using your account, please see our quick reference guides.

Portal reference guide (PDF) 

Send Us a Message

To request specific information about Marshfield Labs, please complete the following form. Items marked with an (*) are required. Every attempt will be made to respond to your request within 2 working days.