CMMI Model Data Sharing (CMDS) Model Participation Data Initiative

The CMS Innovation Center is committed to making model data more easily available to stakeholders to advance transparency on model performance and to support external research and learning. In line with this commitment, the CMS Innovation Center is releasing model participant data for use in data analysis research projects.

These data files may be used as ‘finder files’ in combination with other requested Chronic Conditions Warehouse (CCW) files to isolate results to include (or not include as desired) entities, providers and or beneficiaries participating in specific models.

Each model has a set of up to three (3) files, one per participant type:

  1. Entity file
  2. Provider file
  3. Beneficiary file

Data for each model will be updated the first month of each calendar quarter.

The quarterly file updates are full replacement files and contain data from the launch of each model to the current quarter. Note: Participating entities, providers and beneficiaries may frequently change due to time lags in updates by model participants to their provider lists and/or to changes in beneficiary attribution. As such, these files should not be considered fully complete or final until approximately 6-12 months after a model has ended.

Data files are available for the following models:

          Note: The ACO REACH model was previously called the Global and Professional Direct Contracting (GPDC) model.

  • Bundled Payments for Care Improvement Advanced (BPCI Advanced) Model - This model supports healthcare providers who invest in practice innovation and care redesign to better coordinate care and reduce expenditures, while improving the quality of care.
  • Comprehensive Care for Joint Replacement (CJR) - This model is designed to improve care for Medicare patients undergoing hip and knee replacements (also called lower extremity joint replacements or LEJR) performed in the inpatient or outpatient setting and for total ankle replacements performed in the inpatient setting.
  • Comprehensive Primary Care Plus (CPC+) Model - This national advanced primary care medical home model aims to strengthen primary care through regionally-based multi-payer payment reform and care delivery transformation.
  • Emergency Triage, Treat and Transport (ET3) Model - This model aims to improve quality and lower costs by reducing avoidable transports to hospital Emergency Departments and unnecessary hospitalizations following those transports.
  • End-Stage Renal Disease (ESRD) Treatment Choices (ETC) Model - This model is intended to encourage greater use of home dialysis and kidney transplants for Medicare beneficiaries with ESRD, while reducing Medicare expenditures and preserving or enhancing the quality of care furnished to beneficiaries with ESRD.
  • Independence At Home (IAH) Demonstration - Under this model, the CMS Innovation Center works with medical practices to test the effectiveness of delivering comprehensive primary care services at home and to determine if doing so improves care for Medicare beneficiaries with multiple chronic conditions. Additionally, the Demonstration rewards health care providers that provide high quality care while reducing costs.
  • Kidney Care Choices (KCC) Model - This model helps health care providers reduce the cost and improve the quality of care for patients with late-stage chronic kidney disease and ESRD and aims to delay the need for dialysis and encourage kidney transplantation.
  • Maryland Total Cost of Care (MDTCOC) - CMS and the state of Maryland are partnering to test the model, which sets a per capita limit on Medicare total cost of care in Maryland. The MDTCOC Model is the first Center for Medicare and Medicaid Innovation (Innovation Center) model to hold a state fully at risk for the total cost of care for Medicare beneficiaries.
  • Oncology Care Model (OCM) - In this model, physician practices enter into payment arrangements that include financial and performance accountability for episodes of care surrounding chemotherapy administration to cancer patients.
  • Primary Care First (PCF) Model - This voluntary alternative five-year payment model rewards value and quality by using an innovative payment structure to support the delivery of advanced primary care.
  • Vermont All-Payer Model (VTAPM) - This model is CMS’s test of an alternative payment model in which the most significant payers throughout the entire state – Medicare, Medicaid, and commercial health care payers – incentivize health care value and quality, with a focus on health outcomes, under the same payment structure for the majority of providers throughout the state’s care delivery system and transform health care for the entire state and its population.

The group of models for which CMDS participation files are available will expand over time to include additional models.

The model IDs for the 12 models in the CMDS file set is depicted in the table below.

CMDS Models

Model ID Model Name Short Name Comments
63 ACO Realizing Equity, Access, and Community Health ACO REACH Previously titled GPDC
54 Bundled Payment for Care Improvement Advanced Model BPCI-A  
33 Comprehensive Care for Joint Replacement CJR  
22 Comprehensive Primary Care Plus Model CPC+ Model ended after Q3, 2022
65 Emergency Triage, Treat and Transport Model ET3  
64 ESRD Treatment Choices Model ETC  
01 Independence At Home Demonstration IAH  
66 Kidney Care Choices KCC  
56 Maryland Total Cost of Care MDTCOC  
44 Oncology Care Model OCM  
57 Primary Care First PCF  
53 Vermont All-Payer Model VTAPM  











For further detail, please refer to the specific model website accessible through

Availability of this file

Varies by model start and end date
See what is in this file