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Opt Out Affidavits
The Opt Out Affidavits dataset provides information on providers who have decided not to participate in Medicare. It contains provider's NPI, specialty, address, and effective dates.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| accrualPeriodicity | R/P1M |
| bureauCode |
[
"009:38"
]
|
| contactPoint |
{
"fn": "Provider Enrollment Data Requests - CPI",
"@type": "vcard:Contact",
"hasEmail": "mailto:ProviderEnrollmentDataRequests@cms.hhs.gov"
}
|
| dataQuality |
true
|
| describedBy | https://data.cms.gov/resources/opt-out-affidavits-data-dictionary |
| description | The Opt Out Affidavits dataset provides information on providers who have decided not to participate in Medicare. It contains provider's NPI, specialty, address, and effective dates. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-12-01",
"mediaType": "text/html",
"description": "latest",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/9887a515-7552-4693-bf58-735c77af46d7/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-04-30",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/010003d2-acf5-4399-9e8b-7f603fab3b34/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-09-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/0a52437c-589e-4938-bdb6-29cea99b219e/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-06-30",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/0c629692-cbc3-4cc8-aefe-544ccf3ad7e7/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-10-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/12160436-acac-47f8-9e10-d51ffb0b179c/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-06-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/2041464e-ff3b-47e8-bf4d-df225d809148/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-10-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/2054d677-6fca-47c4-be63-f2949fa42b9f/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-07-01",
"mediaType": "text/html",
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},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-08-01",
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},
{
"@type": "dcat:Distribution",
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},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-09-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/52bb8c1e-cc35-4d47-bc20-df8ada4b7805/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-02-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/572816d4-ae54-4dca-a2dd-e18abd681fe5/data"
},
{
"@type": "dcat:Distribution",
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},
{
"@type": "dcat:Distribution",
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},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-07-01",
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},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-07-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/781da4ae-265f-476b-8f70-4b0c8c18a732/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-12-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/7a964f13-89ad-4038-bde4-357d7866d0e9/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-02-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/7f00fc30-e8da-4b71-b5cc-fec80ac09446/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-10-31",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/7f9f306c-5644-4459-9154-3f08aa3ef7a1/data"
},
{
"@type": "dcat:Distribution",
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},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-06-01",
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"downloadURL": "https://data.cms.gov/data-api/v1/dataset/8de501b8-2871-448d-967c-3ed1919a69c3/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-11-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/a0f3ecf2-3ed1-46b4-81b4-99e24155b502/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-05-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/a175b7c2-ab4c-43a7-a2cb-1614d35be1df/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-09-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/a2652bb9-8b17-49e7-9d24-d6244c6a0519/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-04-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/a2f438b9-3063-4693-9fb4-dd352ce71d54/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-01-31",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/b25ba6e8-9f64-40f7-9e6b-0d0795bf0d8c/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-05-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/c8f2e37b-1e3e-480f-8526-bb2e1e2f44ab/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-11-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/d096e8a1-6a47-4dc9-9abb-dbe07d49f0e2/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-04-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/d30cd363-6c20-43f2-bb01-fe7dd6fc3cca/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-12-31",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/d78085f1-0b10-400f-9a3f-9500f9f1a126/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-08-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/dfb9eb68-03df-4b03-9b11-195dd4e9e2da/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-01-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/e515a683-993c-4309-8894-1b8f0d9074fa/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-03-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/f556100f-1738-4417-aa30-eeb98aaa18e9/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-03-01",
"mediaType": "text/html",
"downloadURL": "https://data.cms.gov/data-api/v1/dataset/f9bf8080-34b3-4f13-9118-7b369dea5e3e/data"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-04-30",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2023-05/02e85de4-9c70-4d8f-84eb-6e14b5f2d5cd/OptOut_April2023.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-05-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2023-06/c9aedbc4-cf97-4f8f-b02f-8e0086fc080c/OptOut_May2023.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-06-30",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2023-07/e1551827-7fd4-4f11-89b5-815f5f629d06/OptOut_June2023.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-07-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2023-08/03d0fa94-f226-488b-b210-302a04ff73bb/OptOut_July2023.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-08-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2023-09/25a2e462-2286-4bd2-a7dc-32744f239dcc/OptOut_August2023.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-09-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2023-10/38452b30-7550-4135-baec-3d29dc4fb4a2/OptOut_September2023.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-10-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2023-11/a86256d3-a4ac-4e42-a1a5-14d2d4e518fc/OptOut_October2023.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-11-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2023-12/c5543700-f5cc-43c7-a92e-ee66ebc579ad/OptOut_November2023.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2023-12-31",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2024-01/4f86cfcc-3e3f-46fe-aaa4-7faa636a3762/OptOut_December2023.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-01-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2024-02/96446c46-bc77-4187-8e70-e83bbd92a9f9/OptOut_January2024.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-02-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2024-03/6f3836d6-c139-4d56-9540-0f15f71f76d9/OptOut_February2024.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-03-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2024-04/20356dd8-8c77-41a3-81a3-a8e7bcf26aba/OptOut_March2024.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-04-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2024-06/6892e840-6a8d-4534-8c71-1e16edac861a/OptOut_List_April2024.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-05-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2024-06/f2ba2639-edca-49ca-bcb6-5b451ca3a0a7/OptOut_List_May2024.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-06-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2024-07/2e200ad9-38aa-4977-90ec-26a327420468/OptOut_List_June2024.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-07-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2024-08/0330d38b-4589-4b57-8864-7dfaec84b26a/OptOut_List_July2024.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-08-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2024-09/42b1dc00-f08f-48e6-85e5-baf42282efce/OptOut_List_August2024.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-09-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2024-10/ddd9d74f-0caf-4aad-9a0b-da041f5e1ef8/OptOut_List_September.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-10-31",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2024-11/25550d4a-4e7c-4af0-9252-1940134b31ed/Opt_Out_List_October.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-11-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2024-12/45dbcd99-513a-46d6-a793-0c22bce533c8/Opt_Out_List_November.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2024-12-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2025-01/159de946-877e-4ffe-8aca-e800b30bcda3/Opt_Out_List_December.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-01-31",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2025-02/101001b7-73df-419e-b101-602baa5015c5/Opt_Out_List_January.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-02-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2025-03/8cdbaa34-846c-4a84-9952-5a41cf00cb4d/Opt_Out_List_February.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-03-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2025-04/fcfeb052-e800-4934-844d-0bd2e0b48937/Opt_Out_List_March.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-04-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2025-05/1ce41a37-167a-49ea-83cb-23a57ac7e4da/Opt_Out_List_April.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-05-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2025-06/b251b636-0dbc-496d-9aa1-dc55c0980405/Opt_Out_List_May.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-06-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2025-07/3dbdfa9b-2639-458d-b5bb-d569794a8560/Opt_Out_List_June.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-07-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2025-08/b8b11f57-4ed1-43e3-b340-70ad347f0ecc/Opt_Out_List_July.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-08-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2025-09/287eb0f4-ac93-4e02-92fb-49a2f60694fa/Opt_Out_List_August.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-09-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2025-10/e35135e3-59ec-4c85-bd22-bb311ec5b35c/Opt_Out_List_September.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-10-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2025-11/ac82e2ac-20fb-4f84-b3f5-72ec50d13604/Opt_Out_List_October.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-11-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2025-12/0cec7cbc-be0b-4f0b-8f65-70277fbf3194/Opt_Out_List_November_2025.csv"
},
{
"@type": "dcat:Distribution",
"title": "Opt Out Affidavits : 2025-12-01",
"mediaType": "text/csv",
"downloadURL": "https://data.cms.gov/sites/default/files/2026-01/e549bc34-2f18-4704-ae86-d7838956721d/Opt_Out_List_December_2025.csv"
}
]
|
| identifier | https://data.cms.gov/data-api/v1/dataset/9887a515-7552-4693-bf58-735c77af46d7/data-viewer |
| issued | 2025-12-09 |
| keyword |
[
"medicare",
"medicare advantage",
"original medicare",
"provider enrollment"
]
|
| landingPage | https://data.cms.gov/provider-characteristics/medicare-provider-supplier-enrollment/opt-out-affidavits |
| language |
[
"en-US"
]
|
| license | https://www.usa.gov/government-works |
| modified | 2026-01-21 |
| programCode |
[
"009:000"
]
|
| publisher |
{
"name": "Centers for Medicare & Medicaid Services",
"@type": "org:Organization"
}
|
| references |
[
"https://data.cms.gov/resources/opt-out-affidavits-methodology"
]
|
| temporal | 2023-04-01/2025-12-31 |
| theme |
[
"Medicare"
]
|
| title | Opt Out Affidavits |
