Ohio Supreme Court Gives Malpractice Victims Extra Time to Name Every Responsible Provider

Published December 2, 2025 · Ohio Supreme Court

When something goes wrong in a hospital, the injured patient rarely knows who was responsible. Was it the nurse who left the room, the physician who ordered the medication, the staffing company that employed that physician, or the hospital itself? The names on the chart do not always tell you who employed whom, and Ohio gives patients only one year to sue.

On October 23, 2025, the Supreme Court of Ohio unanimously confirmed that the law gives patients a real, usable way to bring in providers they did not name at first. The decision is Lewis v. MedCentral Health Sys., Slip Opinion No. 2025-Ohio-4802.

A fall from a hospital bed

According to the opinion, Christine Lewis was a patient at OhioHealth Mansfield Hospital in February 2022. While she was medicated, she was left unattended, fell out of her hospital bed, and fractured her neck.

In October 2022, within the one-year deadline for medical claims, she sued the hospital. Her complaint also listed ten "John Doe" defendants, described generally as the physicians, nurses, and other providers who cared for her that day. In April 2023, with the hospital's consent, she amended her complaint to name additional defendants, including a physician and his emergency-physician group.

The physician and the group asked the court to dismiss the claims against them as too late. They argued that she had not followed the special procedure in Civil Rule 15(D) for suing defendants whose names are unknown, which requires a "name unknown" summons and personal service. They also argued that the extra time Ohio law provides applies only to "newly discovered" defendants, not to providers the patient could have identified earlier. The trial court agreed and dismissed. The Fifth District Court of Appeals reversed, and the Supreme Court affirmed.

The 180-day window

In 2019, the General Assembly added R.C. 2323.451 to Ohio law. It allows a patient who files a medical-claim lawsuit before the one-year deadline runs to keep investigating after filing and to add "any additional medical claim or defendant" by amending the complaint. The window equals whatever time was left on the one-year clock when the suit was filed, plus 180 days from the filing date. R.C. 2323.451(D)(2). The patient must also file an affidavit of merit supporting the new claim or defendant, or ask for more time to file one.

As the Fifth District noted and the Supreme Court agreed, the law was meant in part to curb a "shotgun" approach in which plaintiffs sued and served every possible provider just to preserve claims, then dismissed most of them later.

What the Supreme Court held

Justice Fischer wrote for all seven justices. The court rejected both of the defendants' arguments.

Civil Rule 15(D) does not apply. That rule is for situations where a plaintiff knows who a defendant is and where to find them, but not their name. R.C. 2323.451 is about adding someone new. A patient who uses the statute must follow the ordinary rules for amending a complaint, but not the "name unknown" service procedure.

"Additional" means anyone not already named. The court held that an additional defendant is simply one "not identified in the original complaint." It makes no difference whether the patient knew of the provider, or could have guessed at the provider's role, when the suit was first filed. The 180-day extension is not limited to defendants discovered later.

Because Ms. Lewis filed her original suit on time, amended with the hospital's consent, and filed an affidavit of merit, her claims against the physician and his group were timely. The Ohio Association for Justice, which represents injured people, filed a brief supporting her. Physician, osteopathic, and hospital associations filed briefs on the other side.

Two ways to get extra time, but not both

Ohio law offers two separate extensions of the one-year medical-claim deadline:

1. The 180-day letter. Under R.C. 2305.113(B)(1), a patient who sends a provider written notice of a possible claim before the year runs gets 180 days from the notice to file suit against that provider. This works when you know who the provider is.
2. The 180-day joinder window. Under R.C. 2323.451, a patient who files suit within the year can add additional defendants during the window described above.

The court pointed out an important limit: the statute's procedure may be used "in lieu of, and not in addition to" the 180-day letter. R.C. 2323.451(A)(2). In other words, the two extensions cannot be stacked. Choosing between them is a strategic decision that should be made with a lawyer, early.

The limit this decision does not change

Lewis helps patients who file on time. It does not rescue a claim that is already barred. The extension applies only if the original one-year period for the added defendant had not expired when the original complaint was filed. R.C. 2323.451(D)(1).

And it does nothing to Ohio's four-year statute of repose for medical claims. Under R.C. 2305.113(C), no medical claim may be brought more than four years after the act or omission, with narrow exceptions. In May, we wrote about a Dayton appeals court decision applying that four-year limit to a wrongful-death claim. In Taylor v. Kettering Med. Ctr., 2025-Ohio-1766 (2d Dist.), the court held that the repose period is substantive law that a procedural rule cannot override, even in a case already in court. The 180-day window in Lewis works within the deadlines; it does not stretch the repose period.

Hospital falls are serious cases

Falls by medicated, elderly, or post-surgical patients are among the most preventable hospital injuries. Hospitals assess fall risk, order bed alarms and supervision, and are responsible when those precautions are ignored. We discussed a $6.19 million verdict for a hospital patient who suffered a brain injury in a fall in 2023. Cases like these often involve several providers and companies, which is exactly why the ability to add defendants after filing matters.

What this means for you

If you or a family member was hurt during medical care, the clock is already running, and it is short. Filing a timely lawsuit opens the door to discovery and to the 180-day window to bring in every responsible provider. Waiting until the last weeks of the year closes options. Our guide chapters on deadlines and the timeline of an injury case and why you should talk to a lawyer early explain why the first months matter so much. Our personal injury page describes the cases we handle.