The clinic director sat in a conference room on the fourth floor of a building most clinicians in the profession have never visited. The room was beige. The chairs were institutional. The agenda ran to 23 pages and included language on “payment adequacy,” “access to care,” and “beneficiary utilization trends.” The clinic director had taken two days off work, unpaid, to attend. The testimony slot was four minutes.
Four minutes to explain what happens when reimbursement drops by half in real dollars over three decades, and the response from the people who could change it is a report recommending reform that nobody implements.
The advisory body had studied the problem. Its annual reports to Congress have documented the trajectory for years — the conversion factor that stood at $36.69 in 1998 and fell to $32.36 by 2025, the fifth consecutive year of reductions (MedPAC, 2023). Adjusted for inflation, the real-dollar decline exceeds fifty percent. The advisory body recommended changes. The implementing agency did not act. The professional associations lobbied, but the testimony, position papers, and calls to congressional offices were not aimed at the one structural change that might redirect the entire economic incentive: differentiated reimbursement for differentiated expertise.
This is not a story about bad actors. The advisory body did what advisory bodies do — it studied, it recommended, it published. The implementing agency did what agencies under political pressure do — it balanced competing priorities and moved incrementally. The professional associations did what member organizations do — they advocated within the boundaries of their membership. Every institution performed its designed function. The designed function was not sufficient.
The clinic director flew home the next morning, opened the Monday schedule, and added a 14th patient slot.
The reimbursement structure for outpatient physical therapy in the United States operates on a single premise: a unit of therapy is a unit of therapy. The billing code does not distinguish between the clinician who recognizes that a patient’s persistent shoulder pain is driven by central sensitization, sleep disruption, and poorly managed diabetes, and the clinician who applies a rotator cuff protocol. Same code. Same payment. The system is blind to clinical reasoning.
This blindness is not an oversight. It is a design. Fee-for-service payment models produce treatment patterns that reflect payment incentives rather than clinical need (Jette & Delitto, 1997). When the payment system indexes reimbursement to volume rather than complexity, the rational economic response is to increase volume. Physical therapy utilization under Medicare Part B has risen steadily from 2000 to 2022 — more patients, more visits, more total spending — while per-unit reimbursement has fallen in real terms (Whedon & Zakhary, 2024). The profession is running faster just to stay in place. The clinician who spent forty-five minutes untangling a complex pain presentation and the clinician who ran a protocol in twenty-two minutes billed the same code at the end of the day.
The tools to change this exist. Medicare’s prospective payment system for skilled nursing facilities demonstrated decades ago that payment design shapes clinical behavior — after PPS implementation, rehabilitation services were redistributed toward the most profitable levels rather than allocated based on clinical need (Wodchis, 2004). The lesson was clear: the incentive structure determines the practice pattern. If the incentive rewards volume, volume is what the system produces. If the incentive rewarded complexity management — the capacity to identify what is actually driving a patient’s presentation and treat accordingly — that is what the system would produce instead.
Alternative models have been proposed. A severity-intensity framework for outpatient therapy payment would index reimbursement to the therapist’s judgment of condition severity and expected treatment intensity, replacing volume-based billing with a model that recognizes clinical decision-making as the unit of value (Guccione et al., 2011). Episode-based payment models have been analyzed using Medicare claims data, finding that the average outpatient therapy episode lasts 43 days and has a mean payment of $881, and that episode-based payment could reduce cost variation, though pure lump-sum models carry risk without better predictive data (Amico et al., 2016). Discipline-specific caps, analyzed across 4.9 million Medicare claims, showed that risk-adjusted caps vary by as much as five-to-one across beneficiaries — demonstrating that one-size-fits-all policy fails patients at both ends of the complexity spectrum (Amico et al., 2015).
The advisory body has recommended. The research has been published. The conceptual frameworks have been peer-reviewed.
What has not happened is the political decision to implement any of them.
The profession’s organizational leadership has lobbied consistently for payment stability — fighting annual conversion factor cuts, opposing therapy caps, and advocating for exception processes. That advocacy has been real, and it has mattered. Without it, the cuts would have been deeper and the caps more restrictive. But the advocacy has not addressed the structural question: should the payment system recognize that differentiated clinical expertise produces different value? The lobbying has been defensive — protecting what exists — rather than constructive — building what could replace it.
This is not a failure of effort. It is a failure of aim. The infrastructure to create a different incentive structure is in place. Advisory bodies that study payment adequacy. An agency with the authority to implement alternative payment models. Professional associations with political access to make the case. Academic researchers have already designed the frameworks. The components are present. They have not been assembled for this purpose.
The pattern extends across medicine. Surgical specialties have seen Medicare reimbursement decline by an average of 22.5 percent, adjusted for inflation (Stoffel et al., 2024). Orthopedic sports medicine is down thirty-three percent (Pollock et al., 2022). The erosion is not unique to physical therapy. It is a structural feature of a payment system designed for a different era and not redesigned for this one.
But physical therapy occupies a particular position within that erosion. In surgery, the billing code at least distinguishes between a simple and a complex procedure. In physical therapy, it does not. A fifteen-minute unit of therapeutic exercise is a fifteen-minute unit of therapeutic exercise, regardless of the clinical reasoning that determined what exercise, for what purpose, calibrated to what patient presentation. The billing code renders expertise invisible. And when expertise is invisible to the payment system, it is invisible to the market it creates. The economic case for pursuing advanced training — residency, fellowship, board certification — disappears not because the training lacks value, but because the payment structure cannot see the value it produces.
This is the specific form of market failure that the profession’s advocacy has not yet addressed.
The clinic director who sat in that beige conference room understood all of this. The testimony was not about personal grievance. It was about a system that has studied its own failure, published its own recommendations, and declined to act on them. The four minutes ran out. The committee moved to the next item on the agenda.
The fourteenth patient slot is not a choice. It is the arithmetic consequence of a policy environment in which the tools to fix the problem exist, but the political will to deploy them does not.
The clinic director did not go back the following year. The schedule did not change.
