Our Medicare Advantage service area

The WellFirst Health — Provided by SSM Health Plan — Medicare Advantage service area includes Madison and St. Clair County, IL, and St. Charles, St. Louis County and St. Louis City, MO. You must live in one of these areas to join our plan.

Out-of-network/non-contracted providers are under no obligation to treat WellFirst Health — Provided by SSM Health Plan — members, except in emergency situations. For a decision about whether we will cover an out-of-network service, we encourage you or your provider to ask us for a pre-service organization determination before you receive the service. Call our customer service number or see your Evidence of Coverage for more information, including the cost-sharing that applies to out-of-network services.

Questions? Contact us.

Senior man using phone and laptop in his living room.Members
Talk with our Customer Care Center at 1-877-301-3326 (TTY:711).
Not a member?
Talk with one of our Medicare sales reps at 1-833-551-0565 (TTY:711) You can also call to ask for information in alternate formats and languages. 

Mailing address

WellFirst Health — Provided by SSM Health Plan
PO Box 56099
Madison, WI 53705-9399
View our Medicare disclaimers.

Updated 5/27/21