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Contact Us

Quartz is committed to providing superior customer service.
That's one reason we offer so many ways to reach us.
Background Image: shutterstock_631086410

Welcome to Quartz!

Please select one of the tabs below for your contact preference.

A New Service From Quartz Customer Service

Do you have a question or concern about your health plan or benefits?

Our Customer Service team is now offering to meet with you face to face through a video chatroom. You can meet with a Customer Service representative using your mobile phone, tablet, laptop, or PC. These video walk-in visits are only by appointment.

Fill out this form to schedule a face to face visit.

You can also email or call (800) 362-3310. Let us know what day and time work for you. A Customer Service representative will contact you to schedule the meeting.

Not a Member?

Contact us!

Medicare Advantage Member?

Contact us!

  • Send us a secure message through MyChart.
    • Don't have MyChart?  Sign up and get started!


Reminder: Personal medical information is valuable and should be protected. Many e-mail services are not secure and may not be appropriate for discussing sensitive medical information. For these communications, please call us, send U.S. mail, or submit a secured message through our online form or MyChart.

General Mail

Quartz Health Solutions, Inc.
840 Carolina Street
Sauk City, WI 53583

Please note: Our building hours are Monday through Friday from 8 a.m. to 5 p.m. Your Member ID card lists the correct address for submitting your claims.


Quartz Customer Service

  • Toll Free: (800) 362-3310
  • Local: (608) 644-3430

Quartz For Self-funded Groups

  • Toll Free: (800) 805-0693
  • Local: (608) 644-3440

ETF - State of Wisconsin Employees

  • Toll Free: (844) 644-3455

Employers and Brokers

  • Toll Free: (800) 926-8227


  • 711 or toll free (800) 877-8973

Customer Service Hours


  • 7 a.m. to 6 p.m. Monday – Thursday
  • 7 a.m. to 5 p.m. Friday

Quartz Self-Funded:

  • 8 a.m. to 5 p.m. Monday - Friday
Locations, Maps & Directions

Locations, Maps & Directions

Quartz is local. We work, shop, worship and live in the same communities as you do. Find out more about where we are in your neighborhood.

Feedback regarding Customer Service or this website: