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CMS Oversight Did Not Prevent Medicare Part D Sponsors From Making $587.7 Million in Ineligible Payments to Pharmacies for Drugs Available Over the Counter but Labeled as Prescription-Only

Part D Plans Generally Include Drugs Commonly Used by Dual-Eligible Enrollees: 2026

Impacts of Vertical Integration in Medicare Part D on Sponsors’ Drug Costs, Pharmacy Reimbursement, and Enrollee Cost Sharing

CMS Has Limited Oversight of Selected Compounded Drugs Prescribed to Medicare Part D Enrollees

Essence Healthcare, Inc., Did Not Comply With Federal Requirement for Reporting Direct and Indirect Remunerations for Contract Years 2017 Through 2020

Trends in Dual-Eligible Enrollees’ Access to Drugs Under Part D, 2011-2025

Medicare Could Have Saved $301.5 Million if Bundled Payment Rates for Opioid-Use-Disorder Treatment Services Had Reflected Services Provided to Enrollees

Part D Plans Generally Include Drugs Commonly Used by Dual-Eligible Enrollees: 2025

Department of Health and Human Services Met Many Requirements, but It Did Not Fully Comply With the Payment Integrity Information Act of 2019 and Applicable Improper Payment Guidance for Fiscal Year 2024

Most Medicare Part D Plans’ Formularies Included Humira Biosimilars for 2025

Fewer than One in Five Medicare Enrollees Received Medication to Treat Their Opioid Use Disorder

Medicare Part D Spending for 10 Selected Diabetes Drugs Totaled $35.8 Billion in 2023, an Increase of 364 Percent From 2019

Not All Medicare Enrollees Are Continuing Treatment for Opioid Use Disorder

Providers Used Medicare Part D Eligibility Verification Transactions for Permissible Purposes

Medicare Part D Paid Millions for Drugs for Which Payment Was Available Under the Medicare Part A Skilled Nursing Facility Benefit

Medicare and Medicaid Enrollees in Many High-Need Areas May Lack Access to Medications for Opioid Use Disorder

Medicare and Some Enrollees Paid Substantially More When Stelara Was Covered Under Part D Versus Part B

Part D Plans Generally Include Drugs Commonly Used by Dual-Eligible Enrollees: 2024

Department of Health and Human Services Met Many Requirements, but It Did Not Fully Comply With the Payment Integrity Information Act of 2019 and Applicable Improper Payment Guidance for the Fiscal Year 2023

The Consistently Low Percentage of Medicare Enrollees Receiving Medication to Treat Their Opioid Use Disorder Remains a Concern

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