Sonder Health Plans Payment Center

The Late Enrollment Penalty is an amount that is permanently added to your Medicare drug coverage (Part D) premium. You may owe a late enrollment penalty if at any time after your Initial Enrollment Period is over there is a period of 63 or more days in a row when you do not have Medicare drug coverage, or other creditable prescription drug coverage. You will generally have to pay the penalty for as long as you have Medicare drug coverage. Please contact the Customer Service number at 1 (888) 428-4440, 7 days a week from 8AM to 8PM EST (October 1st – March 31st) or Monday through Friday 8 AM to 8 PM EST (April 1st – September 30th) for assistance if you feel that this penalty was applied in error.

Payments for the Medicare Prescription Payment Program are accepted through our partners at MedImpact. You can make a payment in one of two ways:

1. By calling Member Services at 1-(833) 684-7263 to pay by credit card/debit card and/or to set up automatic payment deduction from your bank account (ACH Payment).
2. Through the mail, by check using the payment slip mailed to you, which includes your current monthly amount due. If you do not have the invoice, please contact Member Services at 1-(833) 684-7263 for the most current information. By mail, please submit your check to the address below:

MPPP Invoice Payments
P.O. BOX 78028
Milwaukee, WI 53278-8028