Contact Us

Customer Service Email:
Non-Member Email:

Toll Free: 1-866-597-9560 (TTY: 711)*
Local: 314-209-2700 (TTY: 711)
Fax: 1-888-480-2577

Company Headquarters
Essence Healthcare
13900 Riverport Drive
Maryland Heights, MO 63043

Springfield Office
CoxHealth MedicarePlus
3300 S. National Avenue, Suite 100
Springfield, MO 65807

Telephone lines are open 8 a.m. to 8 p.m., seven days a week. You may reach a messaging service on weekends and holidays from February 15 to September 30. Please leave a message, and your call will be returned the next business day.

Multi-Language Insert: Please click here to view or download the Multi-Language insert.

Mailing address and fax number for written customer service, claims, appeals and grievances requests:
PO Box 12488
St. Louis, MO 63132
Fax: 1-888-480-2577 (customer service, claims and grievances requests)
Fax: 314-770-6024 (appeals)

*Please note that our main customer service number (above) is the designated number for submitting oral requests for expedited appeals.