Relation-Back Requires Timely Notice to Newly Added ER Providers; Apparent Agency Unity of Interest Alone Is Insufficient

This Second Department decision addresses a recurring medical-malpractice pleading problem: when a plaintiff sues a hospital within the limitations period but later seeks to add individual emergency-department providers (and their professional entities) after the statute has run, can the amended pleading “relate back” to the timely hospital filing?

Parties. The plaintiff, Helen Bass, sued individually and as administrator of the estate of an infant decedent. The original defendants included Garnet Health Medical Center-Catskills (the “medical center”). After the medical center impleaded providers in a third-party action, the plaintiffs amended to add:

• Funsho Busari-Alabi and Sullivan Emergency Services, P.C. (the “Sullivan defendants”), and
• Faith Reeves and Ramapo Anesthesiologists, P.C. (the “Ramapo defendants”).

Core issue. Whether the amended complaint adding the Sullivan and Ramapo defendants—filed after the statute of limitations had expired—could be saved by the relation-back doctrine despite a lack of evidence that those newly added defendants had timely notice of the lawsuit.

The Appellate Division affirmed dismissal of the amended complaint against the Sullivan and Ramapo defendants under CPLR 3211(a)(5) (statute of limitations).

Although the plaintiffs established the first two elements of relation-back—(1) the same occurrence and (2) unity of interest (via apparent agency/vicarious liability principles applicable to emergency-room treatment)—they failed the third element: the record did not show that the newly added defendants knew or should have known, within the limitations period, that they would have been sued “but for a mistake” as to identity. The court emphasized that the “linchpin” is timely notice to the new defendant, and that the circumstances allowed the providers to reasonably conclude the plaintiffs did not intend to sue them.

A. Statute-of-limitations burdens on CPLR 3211(a)(5) motions

• Raymond James Bank v Guzzetti, 240 AD3d 631, 632 — Cited for the rule that the moving defendant bears the prima facie burden to show the limitations period expired.
• U.S. Bank N.A. v Bernice 380 Corp., 186 AD3d 1750, 1752 — Cited for the burden-shift: once expiration is shown, plaintiff must raise a fact issue about tolling, inapplicability, or timely commencement.
• Randolph v Fox, 230 AD3d 1173, 1173 — Reinforces the same burden-shifting framework.

These cases provided the procedural “gate”: once the Sullivan and Ramapo defendants demonstrated lateness under the governing limitation periods, the plaintiffs had to prove relation-back (or another saving doctrine) with record facts—not speculation.

B. Relation-back doctrine: elements and the “linchpin” of notice

• Mignone v Nyack Hosp., 212 AD3d 802, 803 — Quoted for the three-part relation-back test and applied to the hospital/physician context.
• Buran v Coupal, 87 NY2d 173, 178, 180, 181 — The foundational Court of Appeals authority: defines the three prongs; stresses that the critical inquiry is whether the new defendant could reasonably believe the failure to sue timely meant no intent to sue.
• Alvarado v Beth Israel Med. Ctr., 60 AD3d 981, 982-983 — Cited for the proposition that the “linchpin” is whether the new defendant had notice within the limitations period and for the “laid to rest” inference when notice is absent.
• Fitzpatrick v City of New York, 232 AD3d 670, 672; Sanders v Guida, 213 AD3d 712, 714, 716-717 — Cited as relation-back applications emphasizing the plaintiff’s burden and the third-prong notice/mistake requirement.

The court’s reasoning tracks Buran v Coupal and Alvarado v Beth Israel Med. Ctr.: even when prongs one and two are satisfied, relation-back fails without timely notice and a “but for mistake” showing that the new defendants should have expected to be sued.

C. Unity of interest via apparent agency in ER settings

• Rivera v Wyckoff Hgts. Med. Ctr., 175 AD3d 522, 524-525 — Key authority for apparent agency in the emergency-room context and for how that can establish unity of interest between hospital and independent-contractor physicians.
• Mignone v Nyack Hosp., 212 AD3d at 803 — Reiterates that vicarious liability may support unity of interest.
• Gardner v Brookdale Hosp. Med. Ctr., 73 AD3d 1124, 1125 — Cited as a contrast (“cf.”), signaling that different facts (e.g., patient seeking a particular physician) can defeat apparent-agency assumptions.

The decision is notable for clearly separating unity of interest (prong two, which plaintiffs won) from timely notice/mistake (prong three, which plaintiffs lost). In other words, ER apparent agency can get a plaintiff only partway there.

D. Third prong failure: lack of evidence of timely notice and “mistake as to identity”

• Sanders v Guida, 213 AD3d at 716-717 — Used to underscore that relation-back requires proof that the new defendant knew or should have known it would have been sued but for a mistake.
• Stevens v Winthrop S. Nassau Univ. Health Sys., Inc., 89 AD3d 835, 836 — Reinforces denial of relation-back where the “but for mistake”/notice requirement is not met.
• Alvarado v Beth Israel Med. Ctr., 60 AD3d at 983 — Supports the conclusion that defendants could reasonably infer the matter was “laid to rest” as to them.

A. Limitations periods applied

The court accepted that the relevant limitations periods had run before March 24, 2023, citing CPLR 214[5], CPLR 214-a, and EPTL 5-4.1[1]. Once defendants made that prima facie showing, the only viable path for plaintiffs was relation-back.

B. Relation-back prong-by-prong

1. Same conduct/occurrence. Met because claims against the providers arose from the same emergency-department treatment episode as claims against the medical center.
2. Unity of interest / no prejudice via notice attributable to relationship. Met. Relying on Rivera v Wyckoff Hgts. Med. Ctr. and Mignone v Nyack Hosp., the court reasoned that because the infant entered through the ER seeking treatment from the hospital (not a chosen physician), the hospital could be vicariously liable under apparent agency, supporting unity of interest with the providers.
3. New defendant knew/should have known it would have been sued but for a mistake (timely notice as the “linchpin”). Not met. The court found:
   • No record evidence that the providers had notice of the instituted action until October 2021 (subpoenas for nonparty depositions).
   • By October 2021, limitations for wrongful death and medical malpractice had expired (as framed by the court).
   • Plaintiffs still waited until March 24, 2023 to add them—nearly five years after death—supporting the inference of no intent to sue them within the limitations period.
   Therefore, the providers could reasonably conclude the plaintiffs did not intend to sue them and that the matter was “laid to rest” as to them (language drawn from Buran v Coupal and Alvarado v Beth Israel Med. Ctr.).

C. Practical evidentiary point

The Opinion treats “notice” as a record-based fact question. Here, the only identified notice event was service of nonparty subpoenas in October 2021—too late. The decision implicitly warns that plaintiffs cannot rely on later developments (like a hospital’s third-party action) to retroactively supply the missing, within-limitations notice needed for relation-back.

A. For medical malpractice and wrongful death pleading strategy

• Hospitals-first filing is not enough. Even where ER apparent agency supports unity of interest, plaintiffs must still establish prong three—timely notice plus a “but for mistake” explanation.
• Subpoenas are a weak notice substitute. This case signals that first notice via nonparty subpoenas after the limitations period will not satisfy relation-back.
• Delay after learning identities is costly. The court highlighted that plaintiffs did not move to add the providers until March 2023, reinforcing that prolonged inaction undermines any claim that omission was a correctable “mistake.”

B. For hospitals and provider groups

• Providers and their P.C.s can successfully sever themselves from stale claims even when the hospital remains exposed, unless plaintiffs can prove prong three.
• A hospital’s third-party indemnification/contribution practice does not automatically open the door for plaintiffs to add those third-party defendants to the main action outside limitations.

C. Doctrinal clarification

The decision reinforces a structured approach: ER apparent agency can satisfy relation-back prong two (unity of interest), but it does not relax prong three’s notice/mistake requirement. The “linchpin” language from Alvarado v Beth Israel Med. Ctr. is operationalized as a decisive screening tool.

• CPLR 3211(a)(5) motion. A pre-answer motion to dismiss because a claim is barred by the statute of limitations (or other enumerated defenses).
• Statute of limitations. The time window to start a lawsuit. If you sue after it expires, the claim is usually dismissed unless a saving doctrine applies.
• Wrongful death vs. medical malpractice limitations. The Opinion cites EPTL 5-4.1[1] (wrongful death) and CPLR 214-a (medical malpractice) among the governing time limits; different causes of action can have different clocks.
• Relation-back doctrine. A rule allowing an amended complaint adding a new defendant to be treated as if filed on the earlier date—but only if the three prongs are met (same occurrence; unity of interest; and timely notice/“but for mistake”).
• Unity of interest. A close legal relationship such that the original and new defendants “stand or fall together” (often because one may be vicariously liable for the other), reducing the risk of prejudice from late joinder.
• Apparent agency (ER context). If a patient seeks care from the hospital (not a chosen doctor), the hospital can be held responsible for an independent-contractor physician’s negligence because the hospital “held out” the physician as its agent.
• Third-party action (impleader). A defendant (here, the hospital) brings in additional parties for indemnification/contribution. That does not automatically make them defendants to the plaintiff’s claims.

Bass v Garnet Health Med. Center-Catskills reaffirms that New York’s relation-back doctrine is not satisfied merely because a hospital and ER providers are “united in interest” through apparent agency. The decisive requirement remains prong three: the newly added defendants must have had timely notice and must have known (or should have known) that they would have been sued but for a plaintiff’s mistake as to identity. Where, as here, the first evidence of notice arrives only after limitations has expired—and plaintiffs then wait substantially longer to amend—dismissal under CPLR 3211(a)(5) is warranted.

The broader significance is practical and doctrinal: plaintiffs must identify and bring in treating providers early (or develop concrete proof of timely notice and “mistake”), while defendants can defeat late amendments by focusing the record on the absence of within-limitations notice and the reasonableness of believing the matter was “laid to rest.”