Medicare’s Proposed 50% Same-Day E/M Payment Reduction: What Practice Owners Need to Know for 2027

Short answer: CMS has proposed — but has not yet finalized — a 2027 payment policy that would pay the highest-valued covered same-day E/M or procedure service at 100% and other covered same-day services at 50%. Current modifier 25 requirements remain in effect today.

A proposal that can look more final than it is

A Medicare payment proposal now under review could materially change the economics of visits in which a physician performs a separately identifiable office or outpatient evaluation and management (E/M) service and a procedure on the same day. The number attracting attention is 50%. The more important word, however, is proposed.

On July 14, 2026, the Centers for Medicare & Medicaid Services (CMS) released the Calendar Year 2027 Medicare Physician Fee Schedule proposed rule. One provision would reduce payment when a separately identifiable office/outpatient E/M visit and a procedure with a 0-, 10-, or 90-day global period are furnished on the same day by the same physician, or by a physician in the same practice. The public comment period closed on September 14, 2026.

As of September 24, 2026, CMS lists CMS-1848-P as the CY 2027 Physician Fee Schedule proposed rule and does not list a CY 2027 final rule. Practices should therefore take the proposal seriously without treating it as current Medicare payment policy or assuming the final rule will be identical to the proposal.

What CMS actually proposed

Under the proposal, CMS would pay the highest-valued service covered by this same-day policy - either the surgical procedure or the E/M visit - at 100% of the applicable amount. Other surgical procedures or E/M visits covered by the policy and furnished on the same day would be paid at 50%.

That structure matters because the proposal is often summarized as a "50% cut to modifier 25." That shorthand can create the wrong mental model. CMS is not proposing that every qualifying encounter be paid at half of its current value. It is proposing a multiple-service payment approach in which the highest-valued covered service is paid in full and the other covered same-day service or services are reduced.

Hypothetical example: suppose two services covered by the proposed policy have applicable amounts of $150 and $100. Under the proposed methodology, the $150 service would be paid at 100% and the $100 service at 50%, resulting in $200 rather than $250 before considering other applicable Medicare payment adjustments. The figures are illustrative only; they are not actual Medicare rates.

The proposal applies in the Medicare Physician Fee Schedule context. It should not be converted into a universal statement about commercial insurers, Medicaid programs, Medicare Advantage plans, or every payer contract. Those payers may have their own policies; this CMS proposal does not automatically change them.

Modifier 25 has not disappeared

The current Medicare coding standard for modifier 25 remains important. CMS states that modifier 25 may be appended to an E/M code when, as appropriate, a significant and separately identifiable E/M service is reported on the same day as another procedure or service. Work already inherent in the procedure should not be separately reported as an E/M service.

The 2027 proposal does not erase that standard. It addresses the proposed payment treatment after a separately reportable same-day E/M service has been established. In other words, correct use of modifier 25 and the proposed payment reduction are two different questions: first, is the E/M legitimately separately reportable; second, if it is, how would Medicare pay the combination under the proposed 2027 policy?

That distinction is essential for practice leaders. A payment proposal should not become a reason to loosen coding standards, and concern about reduced payment should not become a reason to stop reporting a legitimate service that is supported by the record. Coding, documentation, and payment policy have to remain separate decisions.

Why this matters to physician-owned practices

The practices with the greatest exposure are not necessarily the ones with the highest total Medicare volume. A more useful question is how often the practice provides a separately identifiable office/outpatient E/M service on the same day as a procedure that falls within the proposal's 0-, 10-, or 90-day global-period scope.

For a practice that rarely combines those services, the proposal may have limited financial effect. For a practice where same-day evaluation and treatment is a routine part of care delivery, the effect could be more significant. That is why a generic industry estimate is less useful than the practice’s own claims mix.

The operational issue also extends beyond reimbursement. If a payment policy changes the economics of same-day care, leaders may feel pressure to reconsider scheduling, staffing, procedure-day workflow, and patient convenience. Those are business and access decisions, not merely billing decisions. They should not be made on the assumption that a proposal will necessarily become final policy.

The 50% number is easy to misread

There are three common ways to misinterpret the proposal.

First, 50% does not necessarily mean the E/M line is always the service reduced. CMS proposes to pay the highest-valued covered service at 100% and the other covered same-day surgical procedure(s) or E/M visit(s) at 50%. Depending on the services involved, the E/M visit may or may not be the lower-valued service.

Second, the proposal does not mean Medicare has already changed this payment policy in 2026. The provision remains part of CY 2027 proposed rulemaking as of the date of this article.

Third, the proposal does not make every same-day visit and procedure separately reportable. Existing Medicare coding rules still determine whether the E/M service qualifies as significant and separately identifiable. A payment change cannot turn work already inherent in a procedure into a separately reportable E/M service.

Why physician organizations are pushing back

The proposal has drawn organized opposition. In an AMA-led sign-on effort, more than 150 national medical specialty societies, state medical associations, and other healthcare organizations urged CMS not to finalize the 50% reduction. MGMA also joined an advocacy letter urging CMS not to finalize the proposed policy.

Their argument, in summary, is that CMS has not sufficiently demonstrated that a uniform 50% reduction accurately reflects duplicated resources across the wide range of code combinations that could be affected. The organizations urged CMS to address genuine overlap through established code-specific valuation processes rather than an across-the-board payment reduction.

That opposition is relevant because it shows the proposal is being actively contested by major physician and practice-management organizations. These are advocacy positions presented to CMS; they do not tell us what CMS will ultimately decide. Practice leaders should distinguish stakeholder arguments from final policy.

What practice leaders can do now — without treating the proposal as final

A practice does not need to redesign its scheduling model today to prepare intelligently. The useful work now is measurement.

Start by identifying how frequently Medicare claims include a separately identifiable office/outpatient E/M service on the same day as a procedure with a 0-, 10-, or 90-day global period. Then identify which service combinations account for most of that volume. This is not a coding exercise for the owner; it is a way to understand whether the proposal could be financially material to the organization.

Next, model the proposal as a scenario rather than a forecast. Using the practice's own applicable allowed amounts can help estimate directional exposure, but final CY 2027 payment amounts and policy could differ from the proposal. The purpose is to understand sensitivity, not to predict an exact reimbursement amount for January 2027.

Finally, review whether the organization has clear governance around modifier 25 documentation and same-day services. CMS's current standard still matters today, regardless of what happens to the 2027 proposal. If the practice cannot support why an E/M service was significant and separately identifiable, a future payment policy is not the first issue to solve.

What to watch next

The next decisive document is the CY 2027 Medicare Physician Fee Schedule final rule. Until CMS issues it, the same-day payment reduction remains a proposal. As of September 24, 2026, CMS identifies CMS-1848-P as a proposed rule.

When the final rule appears, practice leaders should compare the final language with the July proposal rather than relying on headlines. The questions to check are straightforward: Was the policy finalized? Did the 50% methodology change? Did the scope change? Which services and global periods are included? What is the effective date? Are there implementation details that change how the rule should be modeled?

That comparison will matter more than any prediction made before the final rule is published.

The practical takeaway

For physician owners and practice managers, the most important point is not that Medicare has "cut modifier 25." It has not - at least not as of September 24, 2026.

CMS has proposed a payment policy that could reduce reimbursement for certain same-day E/M-and-procedure combinations beginning in 2027 if the policy is finalized. The current modifier 25 standard remains in place, the final rule is still pending, and the financial impact would depend heavily on each practice's actual same-day service mix.

The practical move now is to understand your practice's potential exposure, preserve accurate coding and documentation, and wait for the final rule before turning a proposed payment policy into an operational decision.