Accounts Receivable


If Paying by Check

Please Send Payment To:

Accounts Receivable
WI State Laboratory of Hygiene
P.O. Box 78770
Milwaukee, WI 53278-0770

Please make checks payable to WI State Laboratory of Hygiene, and be sure to include the invoice number.


If Paying by VISA or MasterCard

Make a secure online credit card payment

Or call  800-862-1065 (do not email) — Monday-Friday, 7:45 a.m.-4:30 p.m. (CST)



Invoice Terms


Payments are due within 30 days of receipt. Applies to new charges only. Payments not made within 90 days may be referred to a collections agency and may result in legal proceedings.

WSLH Employer Identification Number (EIN) & Federal Tax ID Number: 39-1805963

WSLH Data Universal Numbering System (DUNS) Number: 153884929


Payment Questions


Clinical Laboratories: 608-265-5381

Proficiency Testing: 608-890-3566

Environmental Laboratories: 608-265-4071

Occupational Health Laboratories: 608-265-4071