Exceptions to Stark Law: What They Are and When They Apply

The Stark Law—also known as the Medicare Physician Self-Referral law—prohibits a physician from referring Medicare patients for Designated Health Services (DHS) to an entity with which the physician (or an immediate family member) has a financial relationship, unless an exception applies. Because Stark is a strict-liability statute, you must fit squarely within an exception before claims are submitted.

Across exceptions, common hallmarks include commercial reasonableness, Fair Market Value Compensation, and payments that do not take into account the Volume or Value of Referrals. Most arrangements also require contemporaneous documentation and ongoing monitoring to ensure the facts match the paperwork.

Value-Based Arrangements Exceptions

What these exceptions cover

Value-Based Arrangements allow participants in a value-based enterprise to align financial incentives around quality, outcomes, and cost-efficiency for a defined target patient population. Depending on the level of financial risk, different pathways exist for care coordination, meaningful downside risk, or full financial risk.

Core requirements you must meet

• Define the value-based enterprise, participants, and target patient population in writing, with measurable value-based purposes and outcomes.
• Establish a governance and monitoring process that periodically assesses whether payments and actions further the stated purposes.
• Ensure remuneration is for legitimate value-based activities and is not an inducement to limit medically necessary services or to consider the Volume or Value of Referrals.

FMV and compensation design

While some value-based exceptions do not expressly require Fair Market Value Compensation, organizations commonly benchmark to FMV and document commercial reasonableness to mitigate risk. Tie incentives to objective, prospectively set measures rather than referral volume or DHS revenue.

Documentation to retain

• Written descriptions of participants, roles, metrics, methodologies, and the monitoring schedule.
• Payment formulas set in advance, showing how they relate to value-based purposes.
• Periodic reviews evidencing continued alignment with quality and cost goals.

Physician Services Exception

Scope of the exception

Referrals for physician services personally furnished by the referring physician—or by another physician in the same group practice and billed accordingly—are excepted. “Physician services” refers to Medicare-covered professional services, which are distinct from DHS categories like laboratory or imaging.

Practical applications

• Evaluation and management visits, procedures, and other professional work performed by physicians are typically covered if billed under the correct provider or group number.
• Supervision and incident-to rules still apply; ensure billing pathways reflect how services were delivered.

Compliance tips

Maintain schedules, operative reports, and billing records that confirm the service was personally performed by a physician and submitted under the appropriate TIN. Do not bundle DHS into physician-service claims unless a separate exception covers the DHS.

In-Office Ancillary Services Exception

Who can use it

This exception permits a solo physician or a qualifying group practice to furnish DHS—such as lab tests or imaging—within the practice. The group must meet Medicare’s group practice definition, including unified business operations and compliant profit-sharing or productivity methodologies.

Three pillars: supervision, location, and billing

• Supervision: DHS must be furnished under the required level of physician supervision consistent with Medicare coverage rules.
• Location: Services are performed in the same building where the practice provides physician services on a regular basis, or in a centralized building used by the group.
• Billing: The practice (or the supervising/group physician) must bill Medicare for the DHS.

Common pitfalls to avoid

• Using a site that does not qualify as the same or centralized building.
• Insufficient supervision documentation for technical components.
• Profit distributions that covertly track DHS referrals rather than permissible group methodologies.

Rental of Office Space and Equipment Exception

Key elements for Written Lease Agreements

• Written, signed lease with a term of at least one year and a defined premises or equipment list.
• Rent set in advance at Fair Market Value Compensation and not determined by the Volume or Value of Referrals or DHS revenue.
• Exclusive use by the lessee during lease times and only for legitimate business purposes.

Payment structures that raise risk

• Per-click or percentage-based rent tied to DHS volume or revenue.
• “As-needed” access without a fixed schedule or defined block times.
• Ancillary perks (e.g., staff, supplies) bundled into rent without FMV support.

Documentation and monitoring

Keep floor plans, equipment serial lists, time-block schedules, FMV analyses, and invoices that match the lease. Reassess FMV at renewal or when market conditions change, and verify actual use matches the lease terms.

Employment Exception

When Physician Employment Arrangements qualify

Bona fide employment between a physician and a hospital, health system, or group practice is excepted if compensation is consistent with Fair Market Value Compensation, commercially reasonable, and not determined in a manner that takes into account the Volume or Value of Referrals.

Permissible compensation features

• Productivity bonuses tied to personally performed services (e.g., wRVUs), not to DHS referrals.
• Quality or value-based incentives linked to objective measures and documented methodologies.
• Reasonable benefits and support necessary to perform duties, justified by business need.

Risk controls

Use written offer letters and addenda that describe duties, compensation formulas, and any supplemental payments. Periodically validate commercial reasonableness and ensure no unwritten side deals exist.

Personal Services Exception

Core requirements

• A written, signed agreement that specifies all services and covers at least one year (or, if terminated early, no renegotiation to circumvent the term requirement).
• Aggregate compensation set in advance, consistent with Fair Market Value Compensation, and not based on the Volume or Value of Referrals.
• If part-time, the schedule, exact intervals, and charge for intervals must be set out in the agreement or a contemporaneous master list.

Examples and safeguards

Common uses include medical directorships, call coverage, and advisory roles. Track hours contemporaneously, pay at FMV rates for specified tasks, and ensure deliverables match the written scope.

Physician Recruitment Exception

What it permits

Hospitals and certain entities may provide remuneration to recruit a physician to join the medical staff and relocate into the hospital’s geographic service area. The arrangement must be in writing and cannot be conditioned on a promise of referrals.

Relocation and pass-through to a group

• Relocation generally involves moving the physician’s practice into the service area, with special rules for residents and new physicians.
• Recruitment support may be paid directly to the physician or passed through to a group practice, subject to caps and allocation rules tied to the physician’s actual costs and FMV.

Conclusion

Stark exceptions are precise tools: match the right exception to the facts, memorialize terms in writing, anchor pay to Fair Market Value Compensation, and never base payments on the Volume or Value of Referrals. Maintain ongoing monitoring so your documentation reflects day-to-day operations, including tracking of any Non-Monetary Remuneration Limits.

FAQs.

What qualifies as an exception under Stark Law?

An arrangement qualifies only if it satisfies every element of a specific exception. Typical elements include a written agreement, compensation set in advance at Fair Market Value Compensation, commercial reasonableness, and safeguards ensuring payments do not consider the Volume or Value of Referrals. The exception must fit the actual operational facts for DHS under the Medicare Physician Self-Referral framework.

When do Value-Based Arrangement exceptions apply?

They apply when participants operate within a defined value-based enterprise, pursue legitimate value-based purposes (such as improving quality, coordinating care, or reducing costs without harming quality), and tie remuneration to value-based activities or outcomes for a target patient population. Requirements vary by risk level, but all pathways prohibit conditioning payments on referral volume.

How does the In-Office Ancillary Services exception work?

A qualifying solo or group practice may furnish DHS in the same or centralized building, under required physician supervision, and bill under the practice. You must meet group practice rules, maintain proper supervision and location documentation, and ensure billing aligns with Medicare’s DHS requirements.

What are the limits for non-monetary compensation exceptions?

CMS sets annual Non-Monetary Remuneration Limits per physician for items like modest meals, educational materials, or event fees. The items cannot be cash or cash equivalents, cannot be solicited by the physician, and cannot be tied to the Volume or Value of Referrals. Track benefits at the physician level and document any prompt corrections for inadvertent, isolated overages consistent with Stark’s cure provisions.