The CMS regions map divides the United States into 10 numbered areas run by the Centers for Medicare & Medicaid Services, each with a headquarter city and an email contact for the states and territories it covers.1Centers for Medicare & Medicaid Services. CMS Regional Offices Find your state below to identify your region and the address that will reach its staff.
The 10 CMS Regions and the States They Cover
Every state, the District of Columbia, and every U.S. territory is assigned to one region. Email addresses come directly from the CMS regional offices page.1Centers for Medicare & Medicaid Services. CMS Regional Offices
Region 1 — Boston
Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. Email: ROBOSORA@cms.hhs.gov
Region 2 — New York
New Jersey, New York, Puerto Rico, and the U.S. Virgin Islands. Email: RONYCORA@cms.hhs.gov
Region 3 — Philadelphia
Delaware, the District of Columbia, Maryland, Pennsylvania, Virginia, and West Virginia. Email: ROPHIORA@cms.hhs.gov
Region 4 — Atlanta
Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, and Tennessee. Email: ROATLORA@cms.hhs.gov
Region 5 — Chicago
Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin. Email: ROCHIORA@cms.hhs.gov
Region 6 — Dallas
Arkansas, Louisiana, New Mexico, Oklahoma, and Texas. Email: RODALORA@cms.hhs.gov
Region 7 — Kansas City
Iowa, Kansas, Missouri, and Nebraska. Email: ROKCMORA@cms.hhs.gov
Region 8 — Denver
Colorado, Montana, North Dakota, South Dakota, Utah, and Wyoming. Email: RODENORA@cms.hhs.gov
Region 9 — San Francisco
Arizona, California, Hawaii, Nevada, and the Pacific Territories. The Pacific Territories include American Samoa, the Commonwealth of the Northern Mariana Islands, Guam, the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. Email: ROSFOORA@cms.hhs.gov2Centers for Medicare & Medicaid Services. HHS Regions Map
Region 10 — Seattle
Alaska, Idaho, Oregon, and Washington. Email: ROSEA_ORA2@cms.hhs.gov
A Note on the 2025 Office Closures
In early 2025, HHS announced the closure of five of its ten physical regional offices as part of a broader government restructuring effort. The offices slated for closure were in Boston, New York, Chicago, San Francisco, and Seattle. The remaining physical offices are in Philadelphia, Atlanta, Dallas, Kansas City, and Denver.1Centers for Medicare & Medicaid Services. CMS Regional Offices The state assignments above have not changed, and the CMS website still lists all 10 regional designations with active email contacts. If your state falls under one of the closed offices, use the email address for your region as your starting point.
What a CMS Regional Office Handles
Regional offices are the agency’s connection to state governments, healthcare facilities, and beneficiaries within their territory. Their most visible job is overseeing whether hospitals, nursing homes, home health agencies, hospices, and laboratories meet the federal health and safety standards set by the Social Security Act for participation in Medicare and Medicaid.3Centers for Medicare & Medicaid Services. Quality, Safety and Oversight – Certification and Compliance The actual inspections are done by State Survey Agencies under agreements with HHS; the regional offices coordinate that work and make enforcement decisions when facilities fall out of compliance.
Regional staff also serve as the point of contact between CMS and state Medicaid and CHIP programs. Because Medicaid is jointly funded by federal and state governments, states regularly submit plan amendments and waiver requests. The CMS Regional Administrator has delegated authority to approve state plan amendments, and CMS must act within 90 days of receiving a submission or request more information.4eCFR. Title 42 Chapter IV Subchapter C Part 430 Subpart B – State Plans Only the CMS Administrator in Baltimore can formally disapprove a state plan, but regional staff do the hands-on review and negotiation.
Beyond those core duties, regional offices monitor Medicare Advantage and Part D plans for compliance, assist Medicare Shared Savings Program Accountable Care Organizations, oversee Medicare Administrative Contractors, and coordinate emergency response when disasters affect healthcare facilities in their territory.5Federal Register. Statement of Organization, Functions, and Delegations of Authority They also implement rules governing health insurance markets and Medicare supplement (Medigap) policies.
When to Email Your Region Instead of Calling 1-800-MEDICARE
For routine Medicare questions, enrollment help, or ordering informational booklets, 1-800-MEDICARE (1-800-633-4227) is the right call. The line is staffed 24 hours a day, 7 days a week, with live chat available.6Medicare.gov. Talk to Someone – Contact Medicare
Contact the regional office when the issue goes beyond what the hotline can resolve. Examples include a complex enrollment or eligibility problem the phone line can’t fix, such as a records error showing you as ineligible when you shouldn’t be. Congressional offices sometimes route constituent casework through regional offices as well. The regional office is also the right contact if you’re a healthcare provider with questions about survey and certification, a state agency working on a Medicaid plan amendment, or an organization involved in a Medicare Shared Savings Program.
Where Facility Complaints Actually Go
One thing regional offices generally do not handle directly is a first-line complaint about a facility. If you witness unsafe conditions, abuse, or poor care at a nursing home, hospital, or other healthcare facility, the complaint typically goes to your State Survey Agency, which is usually part of your state’s health department and is responsible for investigating facility conditions.7Medicare.gov. Filing a Complaint
Complaints about the quality of medical care you received as a patient go through a different channel. Medicare routes those to a Beneficiary and Family Centered Care Quality Improvement Organization (BFCC-QIO), a federally contracted reviewer. You can check Medicare.gov or call 1-800-MEDICARE to find which BFCC-QIO covers your state.7Medicare.gov. Filing a Complaint Regional offices enter the picture when complaints escalate or involve systemic facility problems a State Survey Agency hasn’t resolved, and when a disaster damages facilities and puts residents or patients at risk.8Centers for Medicare & Medicaid Services. State Survey Agency Guidance