Contact Us

Quartz is committed to providing superior customer service.
That's one reason we offer so many ways to reach us.
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Welcome to Quartz!

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

Not a 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.