Public audit ledger

Medicaid audit reports

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Evidence register

72 reports

Published
May 30, 2025
Scope
Single jurisdiction
Source authority
Federal
Publishing agency
Centers for Medicare & Medicaid Services
Report ID
REPORT 13
Examines
Ohio

Oklahoma Focused Program Integrity Review Final Report

CMS supports Oklahoma’s efforts and encourages further improvements in program integrity. The review identified four observations for the state’s attention but no non-compliance findings that pose a risk.

Findings
1
Recommendations
5
Open evidence record
Source status
Original source
Published
Apr 2025
Scope
Single jurisdiction
Source authority
Federal
Publishing agency
U.S. Department of Health and Human Services, Office of Inspector General
Report ID
REPORT 51
Examines
Ohio

Audit Of Ohio Adult Day Health Care Services

The Ohio Department of Medicaid did not fully comply with Federal waiver and State requirements in overseeing providers serving adults in the ADS program; inspections were insufficient to ensure a continuously safe and nonhazardous environment, placing adults at risk.

Findings
1
Recommendations
1
Open evidence record
Source status
Original source
Published
Mar 2025
Scope
Single jurisdiction
Source authority
Federal
Publishing agency
U.S. Department of Health and Human Services, Office of Inspector General
Report ID
REPORT 49
Examines
Texas

Texas Did Not Fully Comply With Federal Waiver And State Health, Safety, And Administrative Requirements At All 20 Adult Day Activity And Health Service Facilities Audited

The State agency did not fully comply with Federal waiver and State requirements in overseeing DAHS facilities serving people with special health care needs, and its inspections were not sufficient to ensure a safe and nonhazardous environment, leaving program participants at…

Findings
8
Recommendations
3
Open evidence record
Source status
Original source
Published
Mar 2025
Scope
Single jurisdiction
Source authority
Federal
Publishing agency
U.S. Department of Health and Human Services, Office of Inspector General
Report ID
REPORT 56
Examines
North Carolina

North Carolina’s Medicaid Control Environment, Risk Management Practices, and Governing Processes Were Assessed as Moderate Risk

Overall, the audit determined that North Carolina's Medicaid control environment, risk management practices, and governing processes operate at a moderate risk level, with three risk areas rated high and three rated moderate; the State agency has implemented numerous controls…

Findings
7
Recommendations
11
Open evidence record
Source status
Original source
Published
Feb 2025
Scope
Single jurisdiction
Source authority
Federal
Publishing agency
U.S. Department of Health and Human Services, Office of Inspector General
Report ID
REPORT 37
Examines
Colorado

Colorado Made Capitation Payments to Managed Care Organizations After Enrollees’ Deaths

The audit found that Colorado made unallowable capitation payments to Medicaid managed care organizations for deceased enrollees, resulting in significant financial losses and reporting inaccuracies. The State agency lacked adequate controls and policies to prevent and recover…

Findings
0
Recommendations
0
Open evidence record
Source status
Original source
Published
Dec 2024
Scope
Multi-jurisdiction
Source authority
Federal
Publishing agency
U.S. Department of Health and Human Services, Office of Inspector General
Report ID
REPORT 44
Examines
13 jurisdictions · Alabama, California + 11 more

Twelve Selected States Did Not Accurately Calculate the Federal Share of Medicaid Collections Subject to the Increased COVID-19 Federal Medical Assistance Percentages

Twelve of the thirteen selected States did not accurately calculate the Federal share of Medicaid collections subject to the increased COVID-19 FMAP, resulting in net underreporting of $61.8 million. CMS concurred with all four recommendations and described actions to address…

Findings
5
Recommendations
4
Open evidence record
Source status
Original source
Published
Jul 2024
Scope
Single jurisdiction
Source authority
Federal
Publishing agency
U.S. Department of Health and Human Services, Office of Inspector General
Report ID
REPORT 95
Examines
California

California Payments for Enrollees With Concurrent Medicaid Enrollment in Another State

We estimated that the State agency incurred costs of approximately $19.9 million ($15.5 million Federal share) for August 2021 capitation payments made on behalf of enrollees who were residing and concurrently enrolled for Medicaid in another State. This amount represents pote…

Findings
5
Recommendations
2
Open evidence record
Source status
Original source
Published
Jun 2024
Scope
Single jurisdiction
Source authority
Federal
Publishing agency
U.S. Department of Health and Human Services, Office of Inspector General
Report ID
REPORT 55
Examines
North Carolina

North Carolina Did Not Report and Return All Medicaid Overpayments for the State's Medicaid Fraud Control Unit Cases

The State agency did not report and return the Federal share of all MFCU-determined Medicaid overpayments identified for the period under review (October 1, 2019 through September 30, 2021).

Findings
5
Recommendations
3
Open evidence record
Source status
Original source
Published
May 2024
Scope
Single jurisdiction
Source authority
Federal
Publishing agency
U.S. Department of Health and Human Services, Office of Inspector General
Report ID
REPORT 99
Examines
California

California Improperly Claimed $52.7 Million in Federal Medicaid Reimbursement for Capitation Payments Made on Behalf of Noncitizens With Unsatisfactory Immigration Status

California improperly claimed Federal Medicaid reimbursement for capitation payments to noncitizens with UIS by applying an outdated proxy percentage that did not reflect the true costs of nonemergency services; recommends refund and coordination with CMS to determine reimburs…

Findings
4
Recommendations
2
Open evidence record
Source status
Original source
Published
May 2024
Scope
Single jurisdiction
Source authority
Federal
Publishing agency
U.S. Department of Health and Human Services, Office of Inspector General
Report ID
REPORT 98
Examines
Colorado

Colorado's Program Integrity Section Reporting of Medicaid Overpayments

Colorado did not report and refund the correct Federal share of Medicaid overpayments identified by its Program Integrity Section during Oct 1, 2014 through Dec 31, 2020; 80 of 403 cases contained unreported or incorrectly reported amounts, with late reporting and misused feed…

Findings
6
Recommendations
5
Open evidence record
Source status
Original source
Published
Apr 16, 2024
Scope
National
Source authority
Federal
Publishing agency
U.S. Government Accountability Office
Report ID
REPORT 27
Examines
National scope

Additional Actions Needed to Enhance Program Integrity and Save Billions

While CMS has made significant progress in reducing improper payments and implementing GAO recommendations, ongoing efforts and additional actions are necessary to further enhance program integrity, prevent fraud, and realize substantial cost savings.

Findings
5
Recommendations
5
Open evidence record
Source status
Original source
Published
Mar 2024
Scope
Multi-jurisdiction
Source authority
Federal
Publishing agency
U.S. Department of Health and Human Services, Office of Inspector General
Report ID
REPORT 43
Examines
8 jurisdictions · Arizona, Illinois + 6 more

CMS Did Not Ensure That Selected States Complied With Medicaid Managed Care Mental Health and Substance Use Disorder Parity Requirements

CMS did not ensure that selected States complied with Medicaid managed care MH/SUD parity requirements; noncompliance was widespread across eight States, including missing parity provisions in contracts, lack of parity analyses and public posting, and restrictive practices by…

Findings
6
Recommendations
8
Open evidence record
Source status
Original source
Published
Feb 2024
Scope
Single jurisdiction
Source authority
Federal
Publishing agency
U.S. Department of Health and Human Services, Office of Inspector General
Report ID
REPORT 97
Examines
Colorado

Colorado Could Better Ensure That Nursing Homes Comply With Federal Requirements For Life Safety, Emergency Preparedness, And Infection Control

Colorado could better ensure that nursing homes participating in Medicare and Medicaid comply with Federal life safety, emergency preparedness, and infection control requirements. Deficiencies were observed across all 20 nursing homes audited, indicating ongoing oversight chal…

Findings
7
Recommendations
3
Open evidence record
Source status
Original source
Published
Nov 2023
Scope
Multi-jurisdiction
Source authority
Federal
Publishing agency
U.S. Department of Health and Human Services, Office of Inspector General
Report ID
REPORT 42
Examines
14 jurisdictions · California, Florida + 12 more

Multiple States Made Medicaid Capitation Payments to Managed Care Organizations After Enrollees’ Deaths

The report concludes that improper Medicaid capitation payments to MCOs on behalf of deceased enrollees remain a persistent issue across states, with prior unallowable payments totaling about $249 million and ongoing uncollected federal shares. While CMS has made substantial p…

Findings
5
Recommendations
3
Open evidence record
Source status
Original source
Published
Oct 2023
Scope
National
Source authority
Federal
Publishing agency
U.S. Department of Health and Human Services, Office of Inspector General
Report ID
REPORT 41
Examines
National scope

States Face Ongoing Challenges in Meeting Third-Party Liability Requirements for Ensuring That Medicaid Functions as the Payer of Last Resort

OIG concludes that States continue to face persistent and wide-ranging challenges in meeting third-party liability requirements for Medicaid, even after the Deficit Reduction Act provisions and CMS guidance. The report notes substantial reporting errors by numerous States, lim…

Findings
15
Recommendations
8
Open evidence record
Source status
Original source
Published
Sep 2023
Scope
Single jurisdiction
Source authority
Federal
Publishing agency
U.S. Department of Health and Human Services, Office of Inspector General
Report ID
REPORT 9
Examines
New York

New York Did Not Ensure That A Managed Care Organization Complied With Requirements For Denying Prior Authorization Requests

The audit concluded that the New York State Department of Health’s oversight was ineffective in ensuring that CPHL complied with requirements for denying prior authorization requests, resulting in delays and potential adverse impacts on Medicaid enrollees' health and safety.

Findings
1
Recommendations
3
Open evidence record
Source status
Original source
Published
Sep 21, 2023
Scope
National
Source authority
Federal
Publishing agency
U.S. Government Accountability Office
Report ID
REPORT 15
Examines
National scope

Medicaid Program Integrity Opportunities for CMS to Strengthen Use of State Auditor Findings and Collaboration

While CMS has taken steps to improve collaboration with state auditors and analyze audit findings, there remains significant room for improvement in using these findings to enhance Medicaid program oversight and prevent improper payments.

Findings
3
Recommendations
2
Open evidence record
Source status
Original source
Published
Aug 1, 2023
Scope
Single jurisdiction
Source authority
Federal
Publishing agency
Centers for Medicare & Medicaid Services
Report ID
REPORT 25
Examines
Kansas

Kansas Medicaid and CHIP Eligibility Determinations Audit

The audit found that Kansas generally complies with eligibility determination requirements but identified significant areas for improvement, especially in documentation, timely case closure, and resource verification. The improper payments highlight the need for enhanced overs…

Findings
5
Recommendations
8
Open evidence record
Source status
Original source
Published
Jun 28, 2023
Scope
National
Source authority
Federal
Publishing agency
U.S. Government Accountability Office
Report ID
REPORT 17
Examines
National scope

Medicaid CMS Oversight and Guidance Could Improve Recovery Audit Contractor Program

CMS's oversight of the Medicaid RAC program has been inconsistent, with missed opportunities to recover overpayments and improve program effectiveness. Implementing recommended policies and conducting targeted studies could enhance the program's efficiency and recovery potential.

Findings
5
Recommendations
4
Open evidence record
Source status
Original source
Published
Mar 1, 2023
Scope
Single jurisdiction
Source authority
Federal
Publishing agency
Centers for Medicare & Medicaid Services
Report ID
REPORT 18
Examines
Oregon

Oregon Medicaid Managed Care Medical Loss Ratio Audit

The audit identified areas for improvement in Oregon's Medicaid managed care MLR reporting and oversight processes. While no immediate remittance was required, implementing the recommendations will enhance compliance, accuracy, and program integrity.

Findings
2
Recommendations
10
Open evidence record
Source status
Original source
Published
Nov 2022
Scope
Multi-jurisdiction
Source authority
Federal
Publishing agency
U.S. Department of Health and Human Services, Office of Inspector General
Report ID
REPORT 88
Examines
3 jurisdictions · Arkansas, Connecticut + 1 more

The Centers for Medicare & Medicaid Services’ Review Contractors Generally Conducted Medicaid Fee-for-Service Claim Reviews for Selected States Under the Payment Error Rate Measurement Program in Accordance with Federal and State Requirements

CMS’s review contractors adequately conducted Medicaid FFS claim reviews for three States (Arkansas, Connecticut, and New Mexico) under the PERM program in accordance with Federal and State requirements.

Findings
5
Recommendations
1
Open evidence record
Source status
Original source
Published
Sep 2022
Scope
National
Source authority
Federal
Publishing agency
U.S. Department of Health and Human Services, Office of Inspector General
Report ID
REPORT 40
Examines
National scope

Nearly All States Made Capitation Payments for Beneficiaries Who Were Concurrently Enrolled in a Medicaid Managed Care Program in Two States

CMS did not concur with the recommendations. The OIG maintains that the recommendations are valid and will continue to work with States to identify opportunities to reduce the number and amount of concurrent Medicaid capitation payments. The audit highlighted that concurrent e…

Findings
7
Recommendations
1
Open evidence record
Source status
Original source
Published
Mar 2022
Scope
Multi-jurisdiction
Source authority
Federal
Publishing agency
U.S. Department of Health and Human Services, Office of Inspector General
Report ID
REPORT 90
Examines
3 jurisdictions · Connecticut, Pennsylvania + 1 more

The Centers for Medicare & Medicaid Services’ Eligibility Review Contractor Adequately Determined Medicaid Eligibility for Selected States Under the Payment Error Rate Measurement Program

We determined that CMS’s eligibility review contractor correctly determined Medicaid eligibility for the beneficiaries associated with all 100 sampled claims. Based on our sample results, CMS’s eligibility review contractor adequately determined Medicaid eligibility for three…

Findings
3
Recommendations
0
Open evidence record
Source status
Original source
Published
Jul 26, 2018
Scope
National
Source authority
Federal
Publishing agency
U.S. Government Accountability Office
Report ID
REPORT 28
Examines
National scope

Medicaid Managed Care Improvements Needed to Better Oversee Payment Risks

The GAO found that Medicaid managed care faces significant payment risks and oversight challenges. CMS's efforts to improve program integrity have been delayed and insufficient, risking continued payment errors and fraud. Strengthening oversight and guidance is essential to mi…

Findings
3
Recommendations
3
Open evidence record
Source status
Original source