The Medicare Shared Savings Program (or Shared Savings Program) facilitates coordination among providers to improve the quality of care for Medicare fee-for-service beneficiaries while reducing the growth in health care costs. Eligible providers, hospitals, and suppliers may apply to participate in the Shared Savings Program by creating or participating in an Accountable Care Organization (ACO).

Note: Data descriptions are available in the Data Dictionary on the ACOs in Your State webpage at https://www.cms.gov/Medicare/Medicare-Fee-for-Service-Payment/sharedsavingsprogram/ACOs-in-Your-State.html. Look for the Downloads section at the bottom of the page and open the ZIP file to see the Data Dictionary.

The yellow clusters represent the number of ACOs in an area. This area may cover organizations in multiple states. Click on the cluster to view blue dots with fly outs to see actual ACO location.

DISCLAIMER: This information is current as of December 2016. Changes to ACO information occurs periodically. Each ACO has the most up-to-date information about their organization. Consider using them as a resource to obtain the latest information about an ACO.

The Medicare Shared Savings Program (or Shared Savings Program) facilitates coordination among providers to improve the quality of care for Medicare fee-for-service beneficiaries while reducing the growth in health care costs. Eligible providers, hospitals, and suppliers may apply to participate in the Shared Savings Program by creating or participating in an Accountable Care Organization (ACO).

Note: Data descriptions are available in the Data Dictionary on the ACOs in Your State webpage at https://www.cms.gov/Medicare/Medicare-Fee-for-Service-Payment/sharedsavingsprogram/ACOs-in-Your-State.html. Look for the Downloads section at the bottom of the page and open the ZIP file to see the Data Dictionary.

DISCLAIMER: This information is current as of December 2016. Changes to ACO information occurs periodically. Each ACO has the most up-to-date information about their organization. Consider using them as a resource to obtain the latest information about an ACO.

2013 SSP ACO PUF - To address the increasing number of requests for SSP ACO data, the Centers for Medicare (CM) has created a standard analytical file that CMS can use to efficiently satisfy these requests. It is the intent of CM to publish the ACO-level public-use file (PUF) that contains ACO-specific metrics as well as summarized beneficiary and provider information for each performance year of the SSP program.

2015 SSP ACO PUF - To address the increasing number of requests for SSP ACO data, the Centers for Medicare (CM) has created a standard analytical file that CMS can use to efficiently satisfy these requests. It is the intent of CM to publish the ACO-level public-use file (PUF) that contains ACO-specific metrics as well as summarized beneficiary and provider information for each performance year of the SSP program.

Based upon Medicare Shared Savings Program Accountable Care Organizations Performance Year 2015 Results

This dataset presents data on Calendar Year 2015 financial reconciliation and quality performance results for ACOs with 2012, 2013, 2014 and 2015 agreement start dates. ACOs that generated savings earned a performance payment if they met the quality standard.

Notes: 1 - (Gross) Generated savings: Total savings (first to last dollar) for ACOs whose savings equaled or exceeded their minimum savings rates (variable based on ACO size under Track 1 and flat 2% under Track 2). This amount does not account for the application of the ACO’s final sharing rate based on quality performance, reduction due to sequestration or repayment of advance payments (for ACOs participating in the Advance Payment model and ACO Investment Model, AIM). 2 - (Gross) Generated losses: Total losses (first to last dollar) for Track 2 ACOs whose losses equaled or exceeded their minimum loss rate (flat 2%). This amount does not account for the application of the ACO’s final sharing rate based on quality performance. 3 - Earned shared savings: The ACO’s share of savings for ACOs whose savings equaled or exceeded their minimum savings rates (variable based on ACO size under Track 1 and flat 2% under Track 2), and that were eligible for a performance payment because they met the program’s quality performance standard. This amount accounts for the application of the ACO’s final sharing rate based on quality performance (up to 50% under Track 1 and up to 60% under Track 2), as well as the reduction in performance payment due to sequestration. This amount does not account for repayment of advance payments. 4 - Owed losses: The ACO’s share of losses for Track 2 ACOs whose losses equaled or exceeded their minimum loss rate (flat 2%). This amount accounts for the application of the ACO’s final loss sharing rate (which does not exceed 60%) based on quality performance. 5 - Met the Quality Performance Standard: An ACO must meet the quality performance standard to be eligible to share in any savings generated. For the 2015 performance year, any ACO that did not completely report quality data did not meet the quality performance standard. The quality performance standard for ACOs with 2015 start dates that are in their first performance year is based on complete and accurate reporting of all required quality measures for Calendar Year 2015. ACOs beyond the first performance year of their first agreement period must also meet minimum attainment (which is ≥30% or ≥30th percentile benchmark) on at least one Pay for Performance measure in each domain in order to meet the quality performance standard. 6 - Quality Score: ACOs with 2015 start dates will have a “P4R” (Pay for Reporting) displayed for the Quality Score to reflect that their quality performance is based on complete and accurate reporting.

^ - Measures marked with a caret (^) are measures where a lower performance rate is indicative of better quality.

ACOs that did not successfully report CAHPS measures in 2015 will have a dash "-" displayed for CAHPS measures (ACO-1 through ACO-7 and ACO-34). ACOs that did not successfully report GPRO Web Interface measures in 2015 will have a dash "-" displayed for GPRO Web Interface measures (ACO-13 through ACO-33 and ACO-39 through ACO-41). These measure fields appear as blank cells in the downloaded file (the dash is not displayed).

For measures ACO-13 through ACO-33 and ACO-39 through ACO-41, if no beneficiaries were eligible for this measure due to the measure's inclusion/exclusion criteria, then an "N/A" (Not Applicable) will appear in the place of a performance rate.

For a crosswalk of ACO measure numbers to ACO measure names and for more information on how the Quality Score was determined for ACOs with an Agreement Start Date in 2012, 2013, 2014, or 201

The Market Saturation and Utilization Data Tool includes an interactive map and a data set that shows national-, state-, and county-level provider services and utilization data for selected health service areas. The tool can be used to monitor market saturation as a means to prevent fraud, waste, and abuse. The data can also be used to reveal the degree to which use of a service is related to the number of providers servicing a geographic region. Note: The export feature in the interactive data set may result in reordering of the data records. It is recommended that users sort the exported data by variables(s) of interest to ensure all records are included.

[Data Formatted for Mapping] The Innovation Center develops new payment and service delivery models in accordance with the requirements of section 1115A of the Social Security Act. Additionally, Congress has defined – both through the Affordable Care Act and previous legislation – a number of specific demonstrations to be conducted by CMS.

[Data Formatted for Mapping] The Innovation Center develops new payment and service delivery models in accordance with the requirements of section 1115A of the Social Security Act. Additionally, Congress has defined – both through the Affordable Care Act and previous legislation – a number of specific demonstrations to be conducted by CMS.

[Data Formatted for Mapping] The Innovation Center develops new payment and service delivery models in accordance with the requirements of section 1115A of the Social Security Act. Additionally, Congress has defined – both through the Affordable Care Act and previous legislation – a number of specific demonstrations to be conducted by CMS.

The Medicare Shared Savings Program (or Shared Savings Program) facilitates coordination among providers to improve the quality of care for Medicare fee-for-service beneficiaries while reducing the growth in health care costs. Eligible providers, hospitals, and suppliers may apply to participate in the Shared Savings Program by creating or participating in an Accountable Care Organization (ACO). Disclaimer: This information is current as April 2014. Changes to ACO information occurs on an ongoing basis. As a result, updates to the website will be made annually. The most up-to-date information is maintained by the ACO. Consider using them as a resource to obtain the latest information about an ACO. Websites for the 2014 starters are included on this list.

The Medicare Shared Savings Program (or Shared Savings Program) facilitates coordination among providers to improve the quality of care for Medicare fee-for-service beneficiaries while reducing the growth in health care costs. Eligible providers, hospitals, and suppliers may apply to participate in the Shared Savings Program by creating or participating in an Accountable Care Organization (ACO). DISCLAIMER: This information is current as February 21, 2014. Changes to ACO information occurs on an ongoing basis. As a result, updates to the website will be made annually. The most up-to-date information is maintained by the ACO. Consider using them as a resource to obtain the latest information about an ACO. Participant Legal Business Names appear as they were reported in the original data source.

[Data Formatted for Mapping] The Innovation Center develops new payment and service delivery models in accordance with the requirements of section 1115A of the Social Security Act. Additionally, Congress has defined – both through the Affordable Care Act and previous legislation – a number of specific demonstrations to be conducted by CMS.

The Medicare Shared Savings Program (or Shared Savings Program) facilitates coordination among providers to improve the quality of care for Medicare fee-for-service beneficiaries while reducing the growth in health care costs. Eligible providers, hospitals, and suppliers may apply to participate in the Shared Savings Program by creating or participating in an Accountable Care Organization (ACO).

Note: Data descriptions are available in the Data Dictionary on the ACOs in Your State webpage at https://www.cms.gov/Medicare/Medicare-Fee-for-Service-Payment/sharedsavingsprogram/ACOs-in-Your-State.html. Look for the Downloads section at the bottom of the page and open the ZIP file to see the Data Dictionary.

DISCLAIMER: This data is the certified list of ACO participants for 2016. The ACO has the most up-to-date information. Consider using them as a resource to obtain the latest information about their ACO participants. The names in the Par LBN column appear as reported in the original data source.

The Medicare Shared Savings Program (or Shared Savings Program) facilitates coordination among providers to improve the quality of care for Medicare fee-for-service beneficiaries while reducing the growth in health care costs. Eligible providers, hospitals, and suppliers may apply to participate in the Shared Savings Program by creating or participating in an Accountable Care Organization (ACO).

Note: Data descriptions are available in the Data Dictionary on the ACOs in Your State webpage at https://www.cms.gov/Medicare/Medicare-Fee-for-Service-Payment/sharedsavingsprogram/ACOs-in-Your-State.html. Look for the Downloads section at the bottom of the page and open the ZIP file to see the Data Dictionary.

DISCLAIMER: This information is current as of February 2016. Changes to ACO information occurs periodically. Each ACO has the most up-to-date information about their organization. Consider using them as a resource to obtain the latest information about an ACO.

[Data Formatted for Mapping] The Innovation Center develops new payment and service delivery models in accordance with the requirements of section 1115A of the Social Security Act. Additionally, Congress has defined – both through the Affordable Care Act and previous legislation – a number of specific demonstrations to be conducted by CMS.

[Data Formatted for Mapping] The Innovation Center develops new payment and service delivery models in accordance with the requirements of section 1115A of the Social Security Act. Additionally, Congress has defined – both through the Affordable Care Act and previous legislation – a number of specific demonstrations to be conducted by CMS.

2014 SSP ACO PUF - To address the increasing number of requests for SSP ACO data, the Centers for Medicare (CM) has created a standard analytical file that CMS can use to efficiently satisfy these requests. It is the intent of CM to publish the ACO-level public-use file (PUF) that contains ACO-specific metrics as well as summarized beneficiary and provider information for each performance year of the SSP program.

[Data Formatted for Mapping] The Innovation Center develops new payment and service delivery models in accordance with the requirements of section 1115A of the Social Security Act. Additionally, Congress has defined – both through the Affordable Care Act and previous legislation – a number of specific demonstrations to be conducted by CMS.

[Data Formatted for Mapping] The Innovation Center develops new payment and service delivery models in accordance with the requirements of section 1115A of the Social Security Act. Additionally, Congress has defined – both through the Affordable Care Act and previous legislation – a number of specific demonstrations to be conducted by CMS.

Based upon Medicare Shared Savings Program Accountable Care Organizations Performance Year 2014 Results

This dataset presents data on Calendar Year 2014 financial reconciliation and quality performance results for ACOs with 2012, 2013 and 2014 agreement start dates. ACOs that generated savings earned a performance payment if they met the quality standard. Quality performance for ACOs with 2014 start dates that are in their first performance year is based on complete and accurate reporting of all required quality measures for Calendar Year 2014. Notes: 1 - (Gross) Generated savings: Total savings (first to last dollar) for ACOs whose savings equaled or exceeded their minimum savings rates (variable based on ACO size under Track 1 and flat 2% under Track 2). This amount does not account for the application of the ACO’s final sharing rate based on quality performance, reduction due to sequestration or repayment of advance payments. 2 - (Gross) Generated losses: Total losses (first to last dollar) for Track 2 ACOs whose losses equaled or exceeded their minimum loss rate (flat 2%). This amount does not account for the application of the ACO’s final sharing rate based on quality performance. 3 - Total earned shared savings: The ACO’s share of savings for ACOs whose savings equaled or exceeded their minimum savings rates, and who were eligible for a performance payment because they met the program’s quality performance standard. This amount accounts for the application of the ACO’s final sharing rate based on quality performance (up to 50% under Track 1 and up to 60% under Track 2), as well as the reduction in performance payment due to sequestration. This amount does not account for repayment of advance payments. 4 - Total earned shared losses: The ACO’s share of losses for Track 2 ACOs whose losses equaled or exceeded their minimum loss rate (flat 2%). This amount accounts for the application of the ACO’s final loss sharing rate (which does not exceed 60%) based on quality performance. 5 - Successfully Reported Quality: ACOs are considered to have successfully reported quality if they completely reported in 2014. 6 - Quality Score: ACOs with 2014 start dates will have a “P4R” (Pay for Reporting) displayed for the Quality Score to reflect that their quality performance is based on complete and accurate reporting. For more information on how the Overall Quality Score was determined for ACOs with an Agreement Start Date in 2012 or 2013, please refer to the Medicare Shared Savings Program Quality Measure Benchmarks for the 2014 Reporting Year document posted on the Shared Savings Program website http://www.cms.gov/Medicare/Medicare-Fee-for-Service-Payment/sharedsavingsprogram/Quality_Measures_Standards.html. ACO-1 through ACO-33: ACOs that did not successfully report CAHPS measures in 2014 will have a dash "-" displayed for CAHPS measures (ACO-1 through ACO-7). ACOs that did not successfully report GPRO Web Interface measures in 2014 will have a dash "-" displayed for GPRO Web Interface measures (ACO-12 through ACO-33). These measure fields appear as blank cells in the downloaded file (the dash is not displayed). For measure ACO-11, if no providers were eligible for this measure due to the measure's inclusion/exclusion criteria, then "N/A" (Not Applicable) will appear in place of a performance rate. For measures ACO-12 through ACO-33, if no beneficiaries were eligible for this measure due to the measure's inclusion/exclusion criteria, then an "N/A" (Not Applicable) will appear in the place of a performance rate. ^Measures marked with a caret (^) are measures where a lower performance rate is indicative of better quality. For a crosswalk of ACO measure numbers to ACO measure names, please consult the following table: http://www.cms.gov/Medicare/Medicare-Fee-for-Service-Payment/sharedsavingsprogram/Downloads/ACO-Shared-Savings-Progr