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Welcome! We’re So Happy You’re Here.

Thank you for choosing Quartz Medicare Advantage. We are honored that you have entrusted us with your health insurance needs and we are committed to making your experience be the best it can be. Giving you the information you’ll need to make the most of your benefits is a great place to start. Find your specific plan information by clicking on your county below, or check out our recent blog posts. 


Wisconsin Service Counties:

Gundersen Health System

Minnesota Counties


Wisconsin County


Illinois County


Contact Us

By Phone: (800) 394-5566
TTY 711 or (800) 877-8973
Monday - Friday
8:00 a.m. - 8:00 p.m.
October 1 - March 31
Saturday - Sunday
8:00 a.m. - 8:00 p.m.

By Mail:
Quartz Medicare Advantage
840 Carolina Street
Sauk City, Wisconsin 53583

Contacting Quartz Medicare Advantage

  • March 18, 2020
  • |Medicare Advantage
As you know, information is always subject to change. There may have been updates since this blog post was published. Questions? Please contact Customer Service
Contacting Quartz Medicare Advantage

Quartz Medicare Advantage (HMO) Members

Please Call Instead of Visiting Our Offices

For the health and well-being of our members and employees, we are stopping in-person visits at all Quartz locations. This is in effect until further notice.

  • Contact Customer Service over the phone or online through MyChart. If you are a current member with questions about your current health coverage, Customer Service can best help you with your needs.
    • Call (800) 394-5566 or TTY 711.
    • Send a secure message through your MyChart account.


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Y0092_19 110a CMS Accepted

This webpage was updated on September 10, 2020.