Reports & Evaluations

To evaluate Medicaid and the Children's Health Insurance Program (CHIP) coverage for children, states report data to us about:

Program eligibility
Enrollment
Operations
Expenditures
Program goals

Data reported by states are included in CMS reports that are available to the public. You can find information about these data and other resources, like CMS published papers and research reports from contractors and other non-governmental organizations, below.

CARTS CHIP Annual Reports

Under section 2108(a) of the Social Security Act (the Act), states must assess how their separate CHIP and Medicaid expansion programs operate and their progress in reducing the number of uncovered, low-income children.

The states report their assessments to the Secretary of Health and Human Services (HHS) by January 1 following the end of the FY in the CHIP Annual Report Template System (CARTS).

CARTS collects information about program:

Changes
Performance goals
Operation
Financing
Challenges and accomplishments

🛈 Helpful Info: You can find the CHIP annual reports for each state in the searchable table below. You can also send questions about the CHIP annual reports and CARTS to the CARTS technical assistance team by emailing MDCTHelp@cms.hhs.gov.

Year	State	Title
Year	State	Title

SEDS Annual Enrollment Reports

States report data on the number of children ever enrolled in Medicaid and CHIP in the federal fiscal year (FY) to CMS through the Statistical Enrollment Data System (SEDS) as required by section 2107(b)(1) of the Act. The reports below contain state-by-state Medicaid and CHIP enrollment totals for each fiscal year.

“Ever enrolled” means that children who were enrolled in Medicaid, Title XXI-funded Medicaid expansion CHIP, or separate CHIP for at least one day during the federal fiscal year are included in the enrollment totals reported in SEDS.
Children that moved between Medicaid and CHIP during the fiscal year are counted only once based on the program they were last enrolled in.

The most recent annual enrollment reports are for FY 2021, at which point there were 43,909,443 children ever enrolled in Medicaid and CHIP. Of these 43,909,443 children:

36,281,042 children were enrolled in Medicaid
7,628,401 children were enrolled in CHIP

You can find more information about Medicaid and CHIP enrollment, including state-by-state totals for FY 2021 and before, in the reports below.

Number of Children Ever Enrolled Reports

Year	Title
Year	Title

🛈 Helpful Info: You can email MDCT_Help@cms.hhs.gov with questions about enrollment reports to the SEDS technical assistance team.

Additional state reports to CMS

Quarterly Expenditure Reports

The CMS-21 Quarterly Expenditure reports are the states’ accounting statement of:

Actual recorded expenditures
The disposition of federal funds

States must submit these expenditure reports each quarter to meet sections 2105(e) and 2107(b)(1) of the Act. Reported expenditures mainly include those made to initiate and expand health insurance coverage to uninsured, low-income children through a separate CHIP.

Application, eligibility determination, & enrollment data

All states, including the District of Columbia, provide data each month about their Medicaid and CHIP eligibility and enrollment activity as part of the Medicaid and CHIP Performance Indicator Project. We publicly release these data in a series of monthly reports, which show a range of indicators related to key application, eligibility, and enrollment processes in states’ Medicaid and CHIP agencies.

Special reports to Congress

Historical reports to Congress

Historically, policy analysis and research reports were required to be submitted to Congress. These reports give a better understanding of:

Medicaid and CHIP
The role of Medicaid and CHIP in the US health care system
Key policy and data issues

The reports also promote the programs' continuous process improvement and transparency.