Page Content Sections

​Marshfield Labs
1000 North Oak Avenue
Marshfield, WI 54449-5795

Laboratory Reference Services

• Marshfield Labs Customer Service
• Toll-free: 800-222-5835
• Direct Dial: 715-221-6700
• Internal: ext. 16700
• Fax: 715-221-6215
• Email: mlcussev@marshfieldclinic.org
• Web Portal Helpline (technical support):866-522-2611

Billing Questions

• Marshfield Center Patient Assistance Center (PAC)
• Fee estimates, assistance with available government programs (e.g Badger Care): 800-782-8581 ext. 94475
• Insurance eligibility, insurance referrals, managed care requirements that include Preadmission Review (PAR): 800-782-8581 ext. 75559

• Patient Financial Services (PFS)
  
• Marshfield Center: Billing statements(questions/concerns): 800-782-8581 ext. 90700
• Marshfield Labs Billing Department: Billing statements, insurance eligibility/contracts, fee estimates (Non-Sendouts), credit card payments: 800-782-8581 ext. 90616
• St. Joseph's Hospital of Marshfield (a Ministry affiliate): Internal ext. 77164

For sites other than Marshfield Center, please contact your local PAC (e.g. Diagnostic &Treatment Center, Flambeau Hospital, Lakeview Medical Center)

Toxicology Services

• ​Toll-free: 800-222-5835
• Direct Dial: 715-389-3734
• Internal ext. 9-3734
• Billing questions: 715-389-0616
• Customer Service Email: mlcussev@marshfieldclinic.org
• Web Portal Helpline (technical support): 866-522-2611