The Stark law remains one of the most significant federal regulations governing financial relationships in healthcare. It aims to prevent fraud and abuse by prohibiting physician self-referrals for certain Medicare and Medicaid services. A recent overview from the law firm Eisner Gorin highlights several important updates and reminders for providers.
What the Stark Law Covers
The law bars physicians from referring Medicare or Medicaid patients for designated health services to any entity with which they or an immediate family member have a financial relationship—unless a specific exception applies. Because Stark is a strict liability statute, even unintentional violations can lead to penalties.
Designated health services include a wide range of offerings such as clinical lab services, therapy, imaging, durable medical equipment, home health, prescription drugs, and both inpatient and outpatient hospital services.
Financial Relationships & Required Protections
“Financial relationship” under Stark is broad. It includes ownership interests, compensation arrangements, profit-sharing, consulting fees, and more. Certain relationships are permitted, but only when they meet detailed criteria—such as fair market value, commercial reasonableness, written agreements, and terms that don’t vary based on referral volume.
Common allowable exceptions include:
- Bona fide employment arrangements
- Office space rental agreements that meet Stark’s structural requirements
- In-office ancillary services provided within a physician’s own practice
Providers are encouraged to maintain thorough, written documentation of all financial arrangements.
Penalties & Self-Disclosure
Stark law violations can lead to significant penalties: denial of payment, required refunds, civil monetary penalties up to $15,000 per service, $100,000 fines for circumvention schemes, and even exclusion from federal programs.
If issues are discovered, organizations can report them through CMS’s Self-Referral Disclosure Protocol, which often leads to reduced penalties.
Current Enforcement Climate
Recent legal and regulatory developments are shaping how Stark is interpreted and enforced. Court rulings—including the reversal of Chevron deference—may influence future penalty reviews. CMS has also reported a 552% increase in Stark-related self-disclosures since 2021, and regulators are paying closer attention to private equity and ASC ownership structures.
Experts expect fewer major rule changes in the near term but continued enforcement through the False Claims Act.