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Medicare Shared Savings ProgramPublicly Available ACO Data and ACO Performance Data SourcesMaintained by CMSINTRODUCTIONCMS makes data on Medicare Shared Savings Program (Shared Savings Program) Accountable Care Organizations (ACOs) publicly availablethrough a number of resources. The table below summarizes these sources of publicly available data, the contents of these data files, the format(s)through which the data can be accessed and/or downloaded, and the frequency with which these sources are updated as well as the approximatedate when the source was last updated. Members of the public should submit questions about the Shared Savings Program’s publicly available databy email to SharedSavingsProgram@cms.hhs.gov.Table 1. List of publicly available ACO data and ACO performance data sources maintained by CMSDATA SOURCE NAME(OR SHORT UPDATEDFast Facts – All SharedSavings ProgramACOsHistorical program information (includingprogram size, quality data, and sharedsavings); ACO information (includingcharacteristics, composition, andparticipation information); and ACOassigned beneficiary populationinformation.Shared SavingsProgram websiteStatic report; PDFUpdated annually; lastupdated January 2022.ACO MapInteractive map of the United States thatshows (pinpoint) locations of SharedSavings Program ACOs and displaysselect ACO-specific details (ACO servicearea, public reporting website, andexecutive and public contactname/email/phone).Visit the SharedSavings ProgramACO landing pageon Data.CMS.govand scroll down to“Search for an ACO”in the VisualizationsectionMap viewable on screenwith options for adjustingthe view; data display canbe customized; data canbe exported into commaseparated values (CSV)format.Updated annually; lastupdated January 2022.Disclaimer: This communication material was prepared as a service to the public and is not intended to grant rights or impose obligations. It may contain references or links to statutes, regulations, or otherpolicy materials. The information provided is only intended to be a general summary. It is not intended to take the place of either the written law or regulations. We encourage readers to review the specificstatutes, regulations, and other interpretive materials for a full and accurate statement of its contents.1
Publicly Available Data Sources Maintained by CMSLast Updated January 2022DATA SOURCE NAME(OR SHORT UPDATEDSearchable List ofShared SavingsProgram ACOsACO-specific organizational informationthat includes but is not limited to name,start date, track, address, ACO servicearea, public reporting website, andexecutive and public reporting contacts’name/email/phone.Shared SavingsProgram ACOLanding page onData.CMS.govData display can becustomized (e.g., filtered);data can be exported intoCSV format.Updated annually; lastupdated January 2022.Searchable List ofShared SavingsProgram ACOParticipantsShows a listing of ACO participants byACO name and organizationalinformation.Shared SavingsProgram ACOParticipantsLanding page onData.CMS.govData display can becustomized (e.g., filtered);data can be exported intoCSV format.Updated annually; lastupdated January 2022.Searchable List ofShared SavingsProgram ACO SNFAffiliatesShows a listing of ACO SNF affiliates byACO name and organizationalinformation.Shared SavingsProgram ACO SNFAffiliatesLanding page onData.CMS.govData display can becustomized (e.g., filtered);data can be exported intoCSV format.Updated annually; lastupdated January 2022.2
Publicly Available Data Sources Maintained by CMSLast Updated January 2022DATA SOURCE NAME(OR SHORT UPDATEDPerformance YearFinancial and QualityResults Public UseFile (PUF)For each ACO (identified by ACO name):includes financial and qualityperformance data (including overallquality score, quality measuresperformance rates, final sharing rate,MSR/MLR, benchmark, calculations ofsavings/losses); data on demographiccharacteristics of the ACO’s assignedbeneficiary population; ACO-level dataon expenditure and utilization metrics,and data on the ACO’s provider/suppliercomposition.Shared SavingsProgramPerformance YearFinancial and QualityResultsLanding page onData.CMS.govData can be exported intoCSV format.Updated annually; lastupdated August 2021.Shared SavingsProgram ACO QualityPerformance Results –Physician ComparePerformance rates on a subset of CMSWeb Interface and CAHPS measures forthe 2019 reporting period.Doctors & clinicianson Medicare.gov’sCare ComparewebsitePerformance ratesdisplayed in HTML(webpage format) by ACO;ACOs can be searched byname or selected from anindex of ACO names.Reconciliation dataavailable for the 13 (PY1 Final)Updated annually; lastupdated with 2019 data inJune of 2021 (displaysmost recently competedreporting period only).Note, each year’sperformance data replacesthe previous year’s data.For previous years’ qualityperformance data, refer tothe above row’sperformance data.3
Publicly Available Data Sources Maintained by CMSLast Updated January 2022DATA SOURCE NAME(OR SHORT UPDATEDShared SavingsProgram ACOBeneficiary-levelResearch IdentifiableFile (RIF)Beneficiary-identifiable data for everybeneficiary assigned to a SharedSavings Program ACO, includes ACOidentifier, preliminary assignment, quarterof assignment, final assignment, uniquebeneficiary identifier, date of birth/death,gender, race, reason for Medicareeligibility, dual status, Part D enrollmentstatus, and monthly eligibility flag.Available throughResDAC for a fee toresearchers whohave obtained anappropriate DataUse Agreement(DUA)Data can be requestedand received throughResDAC in CSV formatwith supportingdocumentation (datadictionary).Updated annually throughPY 2017. Updatedquarterly and annuallystarting with Quarter 1 ofPY 2018. Last updatedSeptember 2021.Provider-identifiable data for institutionaland individual providers who participatedin a Shared Savings Program ACOduring the performance year, includingACO name and start date; provideridentifiers (National Provider Identifier(NPI)/name, taxpayer identificationnumber (TIN)/name, CMS CertificationNumber (CCN)); provider characteristics(facility type – institutions; practice type(specialty) – individuals, county primarilyserved).Available throughResDAC for a fee toresearchers whohave obtained anappropriate DUAShared SavingsProgram Provider-levelRIFData available for thefollowing periods:2021 (Q1 & Q2)2020 (annual and 4 Qtrs)2019 (annual and 4 Qtrs)2018 (annual and 4 Qtrs)2017 (annual)2016 (annual)2015 (annual)2014 (annual)2013 (PY1 Final)Data can be requestedand received throughResDAC in CSV formatwith supportingdocumentation (datadictionary).Updated annually throughPY 2019. Updated biannually starting with PY2020; last updatedNovember 2021.Data available for thefollowing periods:Initial: PY 2020-2021Final: PY 2013-20204
Publicly Available Data Sources Maintained by CMSLast Updated January 2022DATA SOURCE NAME(OR SHORT UPDATEDShared SavingsProgram BenchmarkPUFStandard analytical files of the regionalfee-for-service (FFS) expenditures usedto calculate the historical benchmarks forACOs and the annual updates to thesebenchmarks (as applicable based on theACO's agreement period start date).County-levelAggregateExpenditure andRisk Score Data onAssignableBeneficiaries PUFLanding page onData.CMS.govData can be exported intoCSV format.Updated annually and asadditional updates areavailable; last updatedSeptember 2021.County-level AggregateExpenditure and RiskScore Data onAssignableBeneficiaries PUFNumber ofAccountable CareOrganization AssignedBeneficiaries byCounty PUFNumber ofAccountable CareOrganizationAssignedBeneficiaries byCounty PUFLanding page onData.CMS.govData available for thefollowing years:20202019201820172016201520145
Publicly Available Data Sources Maintained by CMSLast Updated January 2022DATA SOURCE NAME(OR SHORT UPDATEDPerformance YearFinancial and QualityResults – ArchivedFor ACOs for which financialreconciliation has been performed,includes participation in the AdvancePayment Model and ACO InvestmentModel (if applicable), total number ofassigned beneficiaries, total benchmarkexpenditures ( ), total expenditures ( ),total benchmark minus total assignedbeneficiary expenditures ( and %),generated savings/losses ( ), earnedshared savings payments/owed losses( ), whether quality performancestandard was met (Yes/No), andmeasure-specific quality performancerates (duplicative with data providedthrough Physician Compare website onselect measures).Performance YearFinancial and QualityResults – ArchivedLanding page onData.CMS.govData display can becustomized (e.g., filtered);data can be exported intoCSV format.Last updated:Note: These datasets areno longer produced.These datasets are onlyavailable for PY1,PY2014, and PY2015. Adifferent dataset formatis available through thePerformance YearFinancial and QualityResults describedabove.August 2016 for PY 2015(ACOs with 2012, 2013,2014, and 2015 startdates).August 2015 for PY 2014(ACOs with 2012, 2013,and 2014 start dates).October 2014 for PY 1Final results (PY1 finalreconciliation for ACOswith 2012 and 2013 startdates).6
Historical program information (including program size, quality data, and shared savings); ACO information (including characteristics, composition, and
