Primary Care Access Cuts Chronic Disease Costs by 54%. Here Is What the Research Is Actually Measuring.

In February 2026, three major health policy organizations published a number that every DPC physician should know.

Having a regular source of primary care is associated with 54% lower total healthcare costs for adults managing chronic disease. The same data shows a 20% lower hospitalization rate for those patients. Children with a usual source of primary care see roughly 40% lower healthcare expenditures. Adults with a usual primary care source are nearly 30 percentage points more likely to receive key preventive services than those without one.

The report — “Investing in Primary Care: The Missing Strategy in America’s Fight Against Chronic Disease” — was co-produced by the Robert Graham Center for Policy Studies in Primary Care, the Milbank Memorial Fund, and the Physicians Foundation. It released alongside the annual 2026 Primary Care Scorecard, which tracks primary care financing, access, and workforce nationally. The numbers are large enough that they merit a closer look — not just for what they claim, but for what they assume.

The Language Is Doing a Lot of Work

The phrase at the center of the report’s findings is “usual source of primary care.” The researchers define it as having a regular physician or care site that a patient consistently returns to for primary care services.

That sounds straightforward. But what it means in practice varies enormously.

In a fee-for-service primary care practice, “having a primary care doctor” often means having a name listed in an insurance portal — a physician the patient sees once or twice a year for an average encounter that rarely exceeds 15 minutes, in a practice with a panel of 2,000 to 2,500 patients. Wait times for an appointment routinely stretch weeks. Getting the same physician twice in a row requires deliberate scheduling. Whether that constitutes a “usual source of care” in any clinically meaningful sense is worth asking.

The outcomes the Milbank report describes — the 54% cost reduction, the decline in hospitalizations, the jump in preventive service adherence — are the outcomes of the relationship, not just the administrative fact of being on a physician’s panel. A patient who sees their doctor regularly, who trusts that doctor’s judgment on chronic disease management, who can reach that physician before a condition escalates into an ER visit: that is the patient the data describes.

The Design Problem

The 2026 Primary Care Scorecard found that primary care financing nationally “continues to stagnate, with spending levels largely unchanged and far below what is needed.” The report is direct about the mechanism: market forces pull physicians, NPs, and PAs toward specialties that reimburse more per service. Without meaningful investment in primary care, even the modest improvements in the training pipeline observed in recent years are unlikely to persist.

Fee-for-service medicine creates a specific structural problem for primary care. A physician billing for individual visits needs volume to sustain a practice financially. That volume requirement produces large panels. Large panels produce shorter visits, longer waits, and less continuity. The structure makes the relationship the Milbank research describes difficult to sustain at scale — not because of physician effort or intention, but because of the billing economics underneath.

As Medical Economics noted in its coverage of the February report, the evidence for primary care’s value has been building for decades. The investment has not followed. The same week the report came out, Marketplace observed that the United States consistently spends less of its healthcare dollar on primary care than comparable countries — and spends more overall.

What DPC Changes Structurally

DPC practices restructure the financial foundation. Monthly membership fees paid directly — from patients, employers, or a combination — replace per-visit billing. Because the physician’s revenue is not tied to visit volume, the economic pressure toward large panels eases. Most DPC practices maintain panels of 400 to 800 patients. That ratio is what makes same-day appointments routine rather than exceptional. It is also what makes the practice financially viable when a patient needs 45 minutes to work through a chronic disease management plan rather than 12.

The Milbank research describes what happens when a patient has consistent, trusted access to a physician who has time for them. DPC’s structural design creates exactly those conditions: smaller panels, direct access, continuity with one physician over time, and the ability to reach a doctor before a minor issue becomes a hospitalization.

This is not a claim that DPC practices have proven they achieve 54% lower costs for chronic disease patients. That specific head-to-head comparison has not been published as a rigorous controlled study. The Milbank finding is about primary care access generally. The narrower claim — but still a significant one — is that DPC is specifically designed to provide the kind of primary care relationship the data describes, in a way that fee-for-service economics make structurally difficult to sustain.

The Chronic Disease Context Right Now

This research matters more this summer than it might have two years ago. The Medicare GLP-1 Bridge takes effect July 1, giving Medicare beneficiaries access to weight loss medications at a flat $50 monthly copay. Managing those patients well — monitoring metabolic markers, titrating doses, tracking side effects over months — is exactly the kind of longitudinal, time-intensive work the Milbank research is describing. It is also exactly what DPC practices are structured to do.

Chronic disease management at scale requires continuity. It requires a physician who knows that a patient’s A1c has been climbing for two years, not just that it is elevated today. It requires time to ask why, and the trust that makes an honest answer possible.

What This Means

The Physicians Foundation summarized the report plainly in its release: primary care is not a missing piece of the healthcare system. It is the missing strategy. The evidence supports that framing: 54% lower costs, 20% fewer hospitalizations, nearly 30 percentage points of difference in preventive service rates.

For DPC physicians, that data is something to keep close. When a skeptical employer asks what they are paying for with a DPC benefit, or when a patient on a tight budget is weighing whether the monthly fee is worth it, the Milbank research is part of the answer. Not because it proves DPC works in isolation — it does not study DPC specifically — but because it establishes what kind of primary care relationship produces outcomes that matter, and then the structure of DPC is built around delivering exactly that.

The system has the evidence. It has had it for decades. DPC practices are not waiting for the system to act on it.