- Introduction
- About Medicare
- CMS Medicare Administrative Contractor Information
- Centers for Medicare & Medicaid Services
- Social Security Administration
- Medicare Secondary Payer
- How to File an Appeal with Original Medicare
- Medicare Quality Improvement Organization
- DME National Supplier Clearinghouse
- Railroad Retirees Part B Questions
- State Health Insurance Assistance Program
- Contacting Medicare
Centers for Medicare & Medicaid Services
CMS has ten regional offices to assist with Congressional inquiries. For Congressional inquiries or questions specific for Medicare Part D, try contacting the Medicare Part D Plan first. Another option is to contact the CMS RO for the region of the state. Ask the CMS operator to speak with a Congressional point of contact.
The ten CMS ROs throughout the country are:
| CMS RO | Location | States | Telephone |
|---|---|---|---|
| CMS RO I | Boston | Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont | 617-565-1232 |
| CMS RO II | New Jersey | New Jersey, New York, Puerto Rico, and Virgin Islands | 212-616-2222 |
| CMS RO III | Philadelphia | Delaware, Maryland, Pennsylvania, Virginia, Washington, D.C., and West Virginia | 215-861-4226 |
| CMS RO IV | Atlanta | Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, and Tennessee | 404-562-7500 |
| CMS RO V | Chicago | Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin | 312-353-7180 |
| CMS RO VI | Dallas | Arkansas, Louisiana, New Mexico, Oklahoma and Texas | 214-767-6401 |
| CMS RO VII | Kansas City | Iowa, Kansas, Missouri, and Nebraska | 816-426-2866 |
| CMS RO VIII | Denver | Colorado, Montana, North Dakota, South Dakota, Utah and Wyoming | 303-844-4024 |
| CMS RO IX | San Francisco | American Samoa, Arizona, California, Guam, Hawaii, Nevada, and Northern Mariana Islands | 415-744-3602 |
| CMS RO X | Seattle | Alaska, Idaho, Oregon, and Washington | 206-615-2354 |