Picture an orthopedic surgery practice closing its books for January 2026. The billing team pulls up the new Medicare conversion factor, sees a 3.26% increase and tells the partners reimbursement is finally moving in the right direction. Three months later, the actual deposits don’t match that story. Per-case Medicare revenue on their bread-and-butter procedures is essentially flat, sometimes lower than 2025. Nobody miscoded anything. Nobody missed a modifier. The math simply isn’t what the headline number promised.
That gap is the point of this article. It isn’t a rate cut anyone announced with a number attached — it’s a cut built into the machinery that calculates what each procedure is worth, and it lands almost entirely on specialties that bill by procedure rather than by time.
Two Numbers, Moving In Opposite Directions
Start with what actually changed in the CY2026 Physician Fee Schedule final rule. The conversion factor — the dollar multiplier applied to every relative value unit to produce a payment — rose to $33.4009 for physicians outside Advanced Alternative Payment Models, a 3.26% increase, and to $33.5675, up 3.77%, for APM-qualified participants. Both increases trace back largely to a one-year 2.5% payment boost Congress folded into budget reconciliation legislation, on top of smaller statutory tweaks under MACRA.
That’s the number that gets quoted in press coverage and specialty-society newsletters. It’s real, and it’s the first conversion factor increase of this size in some time.
But CMS didn’t stop there. In the same rule, the agency finalized a separate, negative 2.5% “efficiency adjustment” applied directly to the work relative value units and intra-service time for the vast majority of non-time-based procedure codes. The justification: physicians and technology both get more efficient over the years — a surgeon performing a given procedure for the fifteenth year running is presumably faster and more practiced than in year one — yet most codes never get individually revalued to reflect that. Rather than reviewing thousands of codes one at a time, CMS built a single across-the-board reduction and applied it everywhere at once.
The size of that reduction is worth sitting with, because it wasn’t picked to reflect any single code’s real efficiency gain. CMS derived 2.5% by summing five years of the Medicare Economic Index productivity adjustment — a factor originally designed to track inflation in practice costs, repurposed here as the basis for a payment reduction. It’s a number borrowed from one context and pointed in the opposite direction in another.
Following The Money Through One Code
Go back to that orthopedic practice. Say their highest-volume procedure carried a work RVU that, combined with the 2025 conversion factor, produced a certain Medicare payment. For 2026, two things happen to that same code simultaneously: the conversion factor multiplying it goes up by roughly 3.3%, and the work RVU feeding into the calculation goes down by 2.5%. Multiply those together and the net change is nowhere near the 3.3% the practice expected — for many procedural codes, it’s close to a wash, and for some it’s a net decline once facility practice-expense changes are layered on top.
That’s the entire mechanism, and it’s why the description “stealth cut” is literal rather than dramatic. A conversion factor cut is visible on its face — everyone reads the same headline number and reacts. An RVU-level cut is invisible unless someone cross-references the 2025 and 2026 RVU tables code by code. Most practices don’t do that reconciliation until the deposits stop matching expectations — and by then, months of undercollected revenue have already passed.
Why It Falls Unevenly By Design
The rule carves out an explicit exemption: time-based services — evaluation and management visits, care management, behavioral health, maternity care, telehealth — are excluded from the efficiency adjustment entirely. On its own, that exemption sounds like reasonable targeting. In practice, it means every dollar of the adjustment’s weight lands on everything else: surgical procedures, diagnostic imaging interpretation, outpatient interventions, interventional pain management, and orthopedic services — precisely the codes procedural specialties depend on.
The unevenness shows up clearly at the specialty level. Neurology, for example, already carries the highest initial denial rate of any major specialty at 14%, driven heavily by professional-technical split errors on EMG and EEG billing — and now absorbs the efficiency adjustment on top of that pre-existing denial exposure. More broadly, primary care and independent-office practices come out ahead under the 2026 rule, while specialists and physicians delivering care through hospital outpatient departments, ambulatory surgery centers, or skilled nursing facilities face real reductions.
It doesn’t stop with the efficiency adjustment alone. The same final rule rejected the AMA’s own Physician Practice Information Survey data for setting 2026 practice-expense values, instead cutting the indirect practice-expense payment for services delivered in a facility setting — regardless of whether the physician is hospital-employed. For a practice that operates across both an ambulatory surgery center and a hospital outpatient department, these aren’t two separate policy footnotes. They’re the same fiscal year, hitting from two directions.
Specialty societies said so plainly once the final rule landed. The American Academy of Ophthalmology described itself as “deeply disappointed” that CMS finalized the adjustment with only minor refinements, despite the Academy’s formal comments urging reconsideration before the rule was finalized. The California Medical Association raised a parallel concern, continuing to push for payment updates tied to the Medicare Economic Index and pointing to its own survey data showing inadequate reimbursement is already driving physicians to scale back or close practices.
The Part That Makes This A Structural Problem, Not A One-Year Problem
A single bad year is something a practice can absorb and plan around. This isn’t structured as a single bad year. CMS intends to reapply the efficiency adjustment every three years going forward, using the same rolling productivity-adjustment logic, with no floor specified on how far any individual code’s value can ultimately fall. The American Medical Association estimates the current adjustment alone touches more than 7,000 physician service codes — and that number is a starting point, not a ceiling, once the next cycle runs in 2029.
What This Actually Changes At The Practice Level
Back to the orthopedic practice closing its books. What should actually change, given this mechanism:
- Stop reading the conversion factor as the whole story. Reconcile RVU tables year over year for your top-volume codes specifically — the conversion factor increase means very little in isolation.
- Model Medicare-heavy service lines against commercial payer mix. Practices leaning on Medicare volume for procedural revenue will feel this most; commercial contracts increasingly need to carry more of the margin.
- Treat site-of-service as a financial decision, not just a clinical one. With the practice-expense reduction compounding the efficiency adjustment specifically in facility settings, where a procedure is performed now moves the bottom line more than it did last year.
- Plan for 2029, not just 2026. The three-year reapplication schedule means this isn’t a policy to react to once — it’s a recurring input that belongs in every long-range financial model from here forward.
The Kaizen Response To A Rule Built On Small, Compounding Cuts
There’s something almost ironic in a policy justified by “efficiency gains” quietly compounding into one of the larger structural pressures procedural medicine has faced in years. CMS is betting that most practices won’t notice a 2.5% adjustment buried inside an RVU table, reapplied every three years, until it’s already reshaped their margins.
That’s exactly the kind of erosion the kaizen philosophy exists to catch early. Continuous, small-scale vigilance — reconciling RVU tables against last year’s, modeling site-of-service economics before the next facility contract is signed, revisiting payer mix assumptions annually instead of every few years — is what keeps a policy like this from becoming a surprise on the P&L. At Kaizen System, that’s the operating principle behind everything we build: revenue protection isn’t one big correction after the fact, it’s a series of small, deliberate checks that catch drift before it becomes a crisis.
