In a rare foray into medical malpractice procedure, the United States Supreme Court issued a unanimous decision in Berk v. Choy that materially alters how state law malpractice claims proceed when filed in federal court. The ruling narrows the reach of state affidavit of merit statutes in diversity actions and is expected to influence forum selection strategies across medical malpractice and other professional liability cases.
Background
The case arose from medical treatment provided to plaintiff Harold Berk following an ankle injury sustained while visiting Delaware. Berk alleged that hospital staff exacerbated his injury during treatment and that the treating physician failed to timely recommend surgery. Rather than filing suit in Delaware state court, Berk brought his medical malpractice claims in federal court based on diversity jurisdiction.
Delaware law requires plaintiffs in medical negligence actions to submit an expert affidavit of merit at the outset of litigation, or obtain a timely extension, or else the complaint cannot be filed or docketed. Although Berk sought an extension, he ultimately failed to produce the required affidavit within the statutory time frame. The District Court dismissed the action, and the Third Circuit affirmed, concluding that the affidavit requirement applied in federal court.
The Supreme Court’s Holding
The Supreme Court reversed. In a unanimous opinion authored by Justice Barrett, the Court held that Delaware’s affidavit of merit statute does not apply in federal court when it conflicts with the Federal Rules of Civil Procedure. The Court concluded that Federal Rule of Civil Procedure 8, which requires only a “short and plain statement of the claim,” answers the same procedural question as the state statute and therefore displaces it.
The Court emphasized a core principle of federal practice: when a valid Federal Rule of Civil Procedure directly addresses an issue, it governs, even if the state rule might otherwise be characterized as substantive under the traditional Erie v. Tompkins analysis. Because Rule 8 sets the ceiling for what a plaintiff must submit at the pleading stage, states may not impose additional evidentiary prerequisites as a condition to filing suit in federal court.
In her concurring opinion, Justice Jackson found that Delaware’s statute could not be enforced federally, though she grounded the conflict in Rules 3 and 12 rather than Rule 8. The practical outcome, however, was the same: dismissal based solely on the absence of an affidavit of merit was improper.
Why Berk Matters Beyond Delaware
Although Berk involved Delaware law, its implications extend far beyond one jurisdiction. Many states employ affidavit of merit or certificate of merit statutes designed to screen out non-meritorious malpractice claims at an early stage. In Pennsylvania and New Jersey, affidavits of merit are required for malpractice and professional liability actions against any licensed professional; this includes lawyers, accountants, architects, and real estate agents. After Berk, those gatekeeping mechanisms are unenforceable in federal court when they require more than the Federal Rules demand at filing.
For plaintiffs able to satisfy diversity jurisdiction requirements, Berk creates a clear incentive to file malpractice and other professional liability claims in federal court to avoid early dismissal based on state law procedural prerequisites. This dynamic may be especially pronounced in high severity cases where diversity is more likely and the amount in controversy threshold is easily met.
Anticipated Impact on Insurers and Defense Strategy
From an insurance industry perspective, Berk signals several developments to watch closely:
- Increased federal filings: Carriers should anticipate a rise in medical malpractice and professional liability cases brought in federal court specifically to bypass affidavit of merit requirements.
- Delayed merit screening: Defendants may lose an early procedural off-ramp traditionally used to challenge weak claims, shifting merit evaluation to later stages such as summary judgment.
- Higher early-stage defense costs: Without affidavit screening, insurers may face increased discovery costs before expert deficiencies can be exposed.
- Forum strategy recalibration: Venue selection analysis will become more critical at intake, particularly where removal or federal filing is possible.
While Berk does not eliminate the need for plaintiffs to ultimately prove their claims with expert testimony, it does move that reckoning further down the litigation timeline, changing the cost and risk profile of professional liability defense.
