Payment Models and Reimbursement

Provider payment models are the rules by which health systems pay clinicians, hospitals, and other providers for the care they deliver. Because the method of payment creates incentives that shape the volume, mix, and coordination of care, payment design is one of the most powerful levers available to influence health system performance.

Definition

A provider payment model is the method and unit by which payers transfer funds to providers in exchange for health services — for example, per service, per patient per period, per case, or for a bundle of care — together with the incentives that unit of payment creates.

Scope

This topic covers the principal mechanisms for paying providers — fee-for-service, capitation, salary, case-based payment, and bundled or population-based models — together with the incentives each creates and the reform efforts that aim to pay for value rather than volume, such as accountable care organisations and pay-for-performance. It is a conceptual reference, not operational or contracting advice.

Core questions

• What are the main ways providers can be paid, and what unit of service does each reward?
• How does each payment method shape the volume, mix, and coordination of care?
• What problems do volume-based methods such as fee-for-service create?
• How do value-based and population-based models try to realign incentives?

Key concepts

• Fee-for-service
• Capitation
• Salary
• Case-based payment (e.g., diagnosis-related groups)
• Bundled or episode-based payment
• Pay-for-performance
• Accountable care organisations
• Value-based payment
• Global and population-based budgets

Key theories

Payment incentives and the move to value

Because providers respond to how they are paid, volume-based payment such as fee-for-service rewards quantity rather than outcomes; reform frameworks argue that aligning payment with value — health outcomes achieved per dollar spent — and holding groups of providers accountable for the cost and quality of a population can better serve the aims of better care at lower cost.

Mechanisms

Each payment unit rewards a different behaviour. Fee-for-service pays per discrete service and therefore rewards greater volume, with weak incentives for restraint or coordination. Capitation pays a fixed amount per enrolled person per period, shifting financial risk to providers and rewarding efficiency but creating a countervailing incentive to under-provide. Salary pays for time rather than output. Case-based payment, such as diagnosis-related groups, pays a fixed amount per admission for a defined case type, encouraging efficiency within an episode. Bundled and population-based models extend a single payment across an episode of care or a whole population, aiming to reward coordination and outcomes. Value-based reforms layer outcome and quality measures onto these mechanisms so that payment depends partly on performance rather than activity alone.

Clinical relevance

Payment design influences the conditions under which clinicians practise, including incentives to provide more or fewer services and to coordinate care across settings. The topic describes how payment shapes provider behaviour at the system level and is not guidance for individual treatment decisions.

Evidence & guidelines

Policy frameworks such as the Triple Aim and value-based care, and proposals for accountable care organisations, have driven a wide shift from pure fee-for-service toward shared-savings, bundled, and population-based arrangements, particularly in Medicare. Evaluations of these models report mixed results — modest savings and quality effects in some programmes — and the evidence remains an active area of health services research rather than a settled body of guidance.

History

Fee-for-service was the historically dominant way of paying providers in many systems. Concerns that it rewarded volume over value, together with case-based prospective payment introduced through diagnosis-related groups in the 1980s, prompted decades of experimentation with capitation, pay-for-performance, and, from the late 2000s, accountable care organisations and bundled payments framed by the Triple Aim and value-based care movements.

Debates

Can value-based payment deliver on its promise?

Reforms that pay for outcomes and coordination aim to curb the volume incentives of fee-for-service, but evidence on whether accountable care and bundled models reliably lower cost and improve quality is mixed, and how to measure and attribute value is itself contested.

Key figures

• Donald Berwick
• Michael Porter
• Elliott Fisher
• Mark McClellan
• Uwe Reinhardt

Seminal works

• berwick-2008
• fisher-2009
• porter-2010

Frequently asked questions

Why is fee-for-service criticised?

Because it pays providers for each service delivered, it rewards the volume of care rather than its outcomes and offers little incentive to coordinate care or avoid unnecessary services. This is the central concern that value-based and bundled payment reforms try to address.

What is capitation?

Capitation pays a provider a fixed amount per enrolled patient for a defined period regardless of how many services that patient uses. It rewards efficiency and prevention but creates a countervailing risk of under-providing care, which quality measurement is meant to guard against.