Contact Us
CMS' RDS Center Help Line
Call Toll-Free
- 877-RDS-HELP or 877-737-4357
- TTY for hearing impaired: 877-RDS-TTY0 or 877-737-8890
- For help in Spanish: 877-737-4357 and select option 2
- Para ayuda en español debe llamar al 877-737-4357 y seleccionar la opción 2
Hours of Operation
CMS' RDS Center Help Line is available Monday through Friday between 8:00AM - 6:30PM Eastern Time
Send an Email
CMS' RDS Center Help Line Email Address: RDS@cms.hhs.gov
CMS' RDS Center will respond to an email with an email reply or a phone call depending on the nature of the inquiry. If the inquiry is about a specific RDS Application, please include the following information in an email:
- Your Name
- Your Email Address
- Your Phone Number
- Organization Name
- Plan Sponsor ID
- Application ID
Do not include any Protected Health Information (PHI), as defined in the Health Insurance Portability and Accountability Act (HIPAA), in the email.
Send An Authorized Representative Verification Form
- Fax Number: 646-458-2280
- Email Address: RDS_Forms@cms.hhs.gov
- Mailing Address:
Retiree Drug Subsidy Center
Attn: Authorized Representative Verification Unit
PO Box 5032
New York, NY 10274–5032
Set Up A Voluntary Data Sharing Agreement (VDSA)
Email Address: cobva@ghimedicare.com
Report Fraud, Waste, Or Abuse
Phone Number: 410-786-0709
Note: This is a CMS phone number and is voicemail only. Please leave a voicemail with your name, your organization name, your phone number, and a brief message.
Send A Check To Satisfy An Overpayment
Mailing Address:
Retiree Drug Subsidy Center
Attn: Payments
PO Box 6865
Towson, MD 21204
Report A Change Of Plan Sponsor EIN Or Company Name
Phone Number: 410-786-0709
Note: This is a CMS phone number and is voicemail only. Please leave a voicemail with your name, your organization name, your phone number, and a brief message.
Email Addresses From Which RDS Correspondence May Be Sent
CMS' RDS Center's official means of communication to the Plan Sponsor is through email.
It is important that all RDS Secure Website participants take the necessary steps to ensure that all emails are received and not marked as "spam" or automatically deleted for any other reason.
Make the necessary adjustments to your email account or contact your network administrator to ensure that emails sent from the following email addresses are not blocked by any spam filters or Blocked Senders Lists:
