Alverno Laboratories
General Billing Info & FAQ

General Billing Information

Hours of Business
Monday – Friday: 7:00 a.m. to 5:00 p.m. CT

Make a Payment by Mail

Mail checks to:
Professional Clinical Laboratories, LLC
26051 Network Place
Chicago, IL 60673-1260

If you would like to make a payment by credit card, Alverno Laboratories accepts Visa, MasterCard, American Express, and Discover.

Please remember when mailing to attach the payment stub, and include the patient’s account number on the check.

Contact Methods:

If you would like to speak directly with a billing representative, please call us at:

In order to efficiently assist you, please direct your call by selecting from the following options:

  • Select option 1 for Medicare questions
  • Select option 2 for all other patient questions
  • Select option 3 for clients
  • If you are returning a call to a biller’s direct extension, select option 5, and then enter the extension number.

Alverno Laboratories/Professional Clinical Laboratories Billing FAQs

Why have I received a bill from Professional Clinical Laboratories (Alverno Laboratories)?
Alverno Laboratories received demographic information from your ordering physician for your laboratory services. For further information about the specific nature of your billing, please contact Billing Services at 815-937-2190 or 877-937-2190.
Who do I speak with to obtain, or answer questions about, my laboratory results?

The laboratory report is sent to the ordering physician. Please contact the ordering physician’s office with any questions related to your test results.

How long will it take before my insurance company processes my claim?
Please allow your insurance company 4 to 6 weeks to process your claim. If your insurance claim has not processed in this timeframe, please contact them directly for assistance.
How can I find out if my insurance company has paid this claim?
Your monthly statement from Professional Clinical Laboratories (Alverno Laboratories) will indicate if we have received an insurance response.
Why didn’t my insurance pay this claim?

Your insurance carrier provides an Explanation of Benefits (EOB) to you that explains, in detail, your laboratory services. If you need further assistance determining the reason(s) why your insurance company did not pay a service, please contact them directly.

Why have I been asked to sign an ABN (Advanced Beneficiary Notice)?

Please click here to find information from the Centers for Medicare and Medicaid Services.