02/20/2026
Questions About a Quest Diagnostics Lab Bill
If you have questions about a bill from Quest Diagnostics, please contact Quest directly first:
Website: QuestDiagnostics.com/Bill
Phone: 1.800.366.6635
If your concern is not resolved after speaking with Quest, your next step should be to contact your insurance provider. Be sure to review your insurer’s specific coverage and policies related to lab testing.
If you still need assistance after contacting both Quest and your insurance company, you may reach out to our office. To help us review your inquiry as efficiently as possible, please include the following information:
Date of service
Denied CPT code and test description listed on the invoice
Bill number (located at the top right corner of the statement)
You may also upload a copy of your Quest invoice through your patient portal.
Thank you for choosing Sensenbrenner Primary Care. We appreciate the opportunity to care for you.