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ESWAB ESwab Collection Video

ESwab Collection Video
Test Code:  
Specimen Requirements
Ordering Applications
Ordering Application Description
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
For more information visit:

​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

For billing questions, see Contacts
For most current information refer to the Marshfield Laboratory online reference manual. Fri Mar 14 2025 19:45:35 GMT+0000 (Coordinated Universal Time)