HHS Office of Inspector General posted a report on May 8, 2026 on Medicare Part B billing for office-based peripheral vascular procedures, including angioplasty, stenting, and atherectomy used to relieve leg pain from narrowed or blocked arteries. Stakeholders have raised concerns about potential overuse when guidelines recommend conservative treatments first.
OIG warned that overuse can mean Medicare pays for medically unnecessary services and can expose patients to serious risks, including amputation. The report found $105 million in 2023 payments for office-based lab procedures may indicate medically unnecessary care, and that a small number of physicians accounted for a large share of concerning payments.
What advocates should watch
Focus on informed consent, second-opinion access, guideline-concordant care, and CMS follow-through on monitoring and enforcement. Medicare beneficiaries and family advocates should ask why a procedure is recommended, what happens with conservative treatment first, and whether site-of-care incentives are driving volume.
Related: HHS OIG report page.
Patient safety and appeals
High-volume vascular procedures in office settings may carry different recovery and emergency coverage rules than hospital-based care. Compare observation versus inpatient status on downstream bills if complications occur.
If Medicare denies a procedure as not reasonable and necessary, gather operative notes, conservative therapy history, and imaging to support medical necessity appeals.
Guides on patientadvocates.io
For step-by-step help, start with our Observation vs inpatient guide or browse related topics including Informed consent, Medicare basics.