For once, a Medicare cost story might be good news — tentatively. On July 14, 2026, the Centers for Medicare and Medicaid Services issued a proposed rule that could reduce what beneficiaries pay out of pocket for common imaging services — X-rays, ultrasounds, MRIs, and similar diagnostic scans — starting in 2027. CMS estimates the change could lower beneficiary cost-sharing by roughly $70 million in 2027 alone, while reducing overall Medicare spending by an estimated $260 million. Here's exactly what's being proposed, what it would mean for your bill, and the important reason nothing is guaranteed yet.
📋Quick Summary
- CMS issued the proposed Calendar Year 2027 Medicare Physician Fee Schedule rule on July 14, 2026.
- The proposal includes changes intended to reduce beneficiary cost-sharing for imaging services like X-rays, MRIs, and ultrasounds.
- CMS estimates roughly $70 million less in beneficiary out-of-pocket costs in 2027, with about $260 million in reduced overall Medicare spending.
- This is a PROPOSED rule, not a final one — it's now open for public comment before CMS issues a final rule later in 2026.
- The rule is part of a broader package of physician payment and value-based care reforms CMS has been rolling out.
- If finalized as proposed, changes would take effect January 1, 2027 — not this year.
What's Actually in the Proposal
Every year, CMS issues a proposed rule updating how Medicare pays physicians and other providers for the services they deliver — this is a routine, legally required annual process, not a one-time special announcement. What makes the 2027 proposal notable is a specific set of provisions aimed at reducing what beneficiaries pay for diagnostic imaging.
The proposal is part of a broader package CMS has described as "transformational Medicare reforms" intended to expand accountable care arrangements, modernize physician payment structures, and shift incentives from what the agency calls "sick care" toward more preventive, value-based approaches. Within that larger package, the imaging cost-sharing provisions specifically target the copay and coinsurance amounts beneficiaries pay for common diagnostic scans under Part B — the tests ordered when a doctor needs to look inside the body to diagnose a fracture, investigate a mass, evaluate joint damage, or assess organ function.
CMS's own estimate puts the beneficiary savings at approximately $70 million across 2027, spread across the millions of Medicare beneficiaries who receive imaging services in a given year — meaningful in aggregate, but translating to a modest reduction per individual scan rather than a dramatic overhaul of imaging costs. The larger $260 million figure represents CMS's projection of total Medicare program savings, which includes both the beneficiary-facing reduction and adjustments to what Medicare pays providers and facilities for these services.
For a refresher on how Part B cost-sharing works today — the deductible, the 20 percent coinsurance, and how they apply to outpatient diagnostic services — see our 2026 Medicare Costs guide, which walks through the current baseline these proposed changes would adjust against.
Nothing changes until 2027, and only if the rule is finalized. CMS proposed rules go through a mandatory public comment period before becoming final — typically 60 days — during which healthcare providers, patient advocacy groups, insurers, and members of the public can submit feedback that sometimes leads to meaningful changes before the final version is issued. CMS is expected to release the final rule later in 2026, likely in the fall, ahead of the January 1, 2027 effective date if finalized. Nothing about your imaging costs changes for the remainder of 2026. If you have imaging scheduled this year, your current cost-sharing rules apply, not the proposed 2027 figures.
The Political Backdrop This Proposal Sits Inside
This proposal isn't happening in isolation — it's arriving at the same moment Congress is separately debating a very different Medicare-related question, and the contrast is worth understanding.
House Speaker Mike Johnson announced this week that he would begin the process for what's being referred to as "Reconciliation 3.0" in the House Budget Committee, a package reportedly aimed at identifying hundreds of billions of dollars in savings across Medicare, Medicaid, and other federal programs. According to reporting from POLITICO, the scale of proposed reductions has generated concern even among some Republicans in competitive re-election races, who are described as skeptical of pursuing such large cuts to popular health programs.
It's important to be precise about what is and isn't connected here: the CMS imaging cost-sharing proposal is a routine, agency-level annual payment rule, developed through the standard regulatory process. The Reconciliation package being discussed in Congress is a separate, legislative-level effort that would require a vote in both chambers and operates on an entirely different track. One does not depend on the other, and it's entirely possible for CMS to finalize modest, beneficiary-friendly imaging cost reductions through the regular rulemaking process while Congress simultaneously debates much larger structural changes to Medicare and Medicaid financing through legislation. Beneficiaries following Medicare news this year are likely to see both stories develop in parallel, and it's worth not conflating a technical payment rule adjustment with a broader legislative fight over program funding. Our 2026 Medicare Roadmap tracks both tracks as they develop.
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✅What This Means for You
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Why Imaging Costs Became a Target This Year
Diagnostic imaging has been a persistent point of friction in Medicare cost discussions for years, which helps explain why it surfaced specifically in this year's proposal rather than being addressed through some other mechanism.
Imaging services — particularly MRIs and CT scans — carry meaningful cost-sharing under current Part B rules, since they're billed as outpatient diagnostic services subject to the annual deductible and standard 20 percent coinsurance after the deductible is met. For a single high-cost scan, that coinsurance can represent a real out-of-pocket expense, especially for beneficiaries who need multiple imaging studies within a plan year as part of managing a chronic condition or investigating a new symptom.
There's also a utilization dimension driving CMS's broader payment reform push this year. As the agency has emphasized value-based care and accountable care arrangements as strategic priorities, reducing financial barriers to diagnostic services fits a stated goal of shifting incentives toward earlier detection and prevention rather than costlier downstream treatment. A scan that helps catch a problem early, the reasoning goes, is often cheaper for the overall system than the more extensive treatment needed if a condition goes undetected longer because a beneficiary avoided or delayed a scan due to cost.
Whether the specific dollar amounts proposed will meaningfully change beneficiary behavior — encouraging more people to get recommended imaging rather than skip or delay it — is one of the open questions the public comment period is likely to surface, and something worth watching as the rule moves toward finalization later this year. For context on the current cost-sharing rules these figures would adjust against, see our Parts A, B, C, and D comparison guide.
📊CY2027 Physician Fee Schedule: Key Facts
How to Actually Weigh In — and What to Watch For Next
If you have views on this proposal — whether you support it, think it doesn't go far enough, or have concerns about how it might affect access to care — the public comment period is a genuine mechanism, not a formality, and CMS is required to review and respond to substantive comments before finalizing any rule.
Public comments can be submitted directly through the federal regulations.gov portal, referencing the specific rule number (CMS-1848-P) once the official comment docket opens. Patient advocacy organizations, including AARP and the Center for Medicare Advocacy, often submit their own detailed comments and sometimes provide simplified guidance for individual beneficiaries who want to weigh in but aren't sure how to navigate the formal comment process.
Beyond the comment period itself, the most useful thing beneficiaries can do right now is simply track the story rather than assume any outcome. CMS's proposed rules are sometimes finalized largely as written, and sometimes meaningfully revised based on the comments received — particularly when provider groups or patient advocates raise implementation concerns CMS hadn't fully anticipated. The final rule, expected this fall, will be the actual authoritative answer to what 2027 imaging costs look like, and that's the version worth paying attention to when it's released.
In the meantime, nothing about this proposal should change how you approach imaging you need now. If your doctor recommends a scan this year, current 2026 cost-sharing rules apply regardless of what's proposed for next year, and delaying medically necessary care in anticipation of a rule that hasn't been finalized carries real health risk for a savings that isn't guaranteed. For related reading, see when Medicare denies emergency imaging in 2026.
