Short answer: A stroke misdiagnosis lawsuit in New York is a medical malpractice claim that a doctor, nurse or hospital failed to recognize or treat a stroke in time, for example by calling it vertigo, a migraine or intoxication, and that the delay caused lasting disability or death. Most claims must be filed within 2 years and 6 months, and public hospital cases generally need a notice of claim within 90 days.
This is general information, not legal or medical advice. If you think someone is having a stroke now, call 911. Speak with a lawyer licensed in your state about your own situation.
This guide covers why timing matters, how strokes get missed, New York’s stroke center program, the records to request and four states’ deadlines.
Why does timing matter so much in stroke care?
Most strokes are ischemic, meaning a clot blocks blood flow to part of the brain. The National Institute of Neurological Disorders and Stroke (NINDS) says the best treatments can only be used within four and a half hours of the first symptoms, although some patients benefit from treatment up to 24 hours after a stroke. NINDS also explains that clot-removal procedures can help people with large blockages, which is why fast transfer to a capable hospital matters.
NINDS teaches the F.A.S.T. test: face drooping, arm weakness, speech difficulty, time to call 911. Because the treatment window is short, stroke claims usually turn on the clock: when symptoms began, when the patient was seen, and when imaging and treatment happened.
When can a missed stroke be medical malpractice?
Some strokes are hard to spot, and some patients are not candidates for treatment even when diagnosed quickly. A malpractice claim generally needs a qualified medical expert to show that the care fell below accepted practice and that this made the outcome worse. Problems lawyers and experts often examine include:
- Dizziness or vertigo dismissed as an inner-ear problem without a focused neurological exam, especially in older patients or those with risk factors.
- A sudden, severe headache treated as a migraine when it could signal bleeding in the brain.
- Warning episodes sent home: a transient ischemic attack (TIA) that resolved, with no imaging, vessel study or follow-up plan.
- Delays in imaging or reading scans, or relying on an early CT scan that may look normal in the first hours.
- No neurology or telestroke consult, or a slow transfer to a hospital that can remove clots.
- Symptoms blamed on intoxication, low blood sugar or anxiety without ruling out stroke.
Defense experts often argue that the patient would not have qualified for treatment or that the damage was already done. For related problems, see our guides to emergency room negligence in New York and heart attack misdiagnosis lawsuits.
Does New York certify hospitals for stroke care?
Yes. Under 10 NYCRR 405.34, the state’s Stroke Designation Program recognizes three levels of hospitals: Primary Stroke Centers, which can give IV clot-dissolving medicine; Thrombectomy Capable Stroke Centers, which can also remove large clots; and Comprehensive Stroke Centers, which add neurosurgical care for brain bleeds. Designated centers must report performance measures and time targets to the Department of Health.
The program is voluntary, and a hospital’s protocols are not the same as the legal standard of care. Still, whether a hospital was designated, what its stroke protocol required and whether a transfer should have happened sooner can all matter in a case.
What records do you need for a stroke claim?
- Ambulance and triage records, including the first symptoms reported and the “last known well” time.
- Emergency room physician and nursing notes, including any stroke scale scores, such as the NIH Stroke Scale.
- Imaging orders, scan times and radiology reports for CT, CT angiography or MRI, plus the images themselves.
- Neurology or telestroke consult notes and any transfer requests and times.
- Medication records and discharge instructions, plus the death certificate and autopsy report if a loved one died.
Our guide explains how to get medical records in New York. Ask for the complete chart and the imaging files, not just summaries. For a deeper look at how missed strokes become legal claims, Kramer, Dillof, Livingston & Moore’s guide to missed stroke cases walks through common scenarios from a New York firm’s perspective.
What are the deadlines in New York, New Jersey, Pennsylvania and Connecticut?
These are starting points. Exceptions exist for children and public hospitals, so confirm your deadline with a licensed lawyer.
New York
- Filing deadline: generally 2 years and 6 months from the malpractice or the end of continuous treatment under CPLR 214-a.
- Discovery rule: limited to foreign objects and missed cancer, so it generally does not extend stroke cases.
- Certificate of merit: CPLR 3012-a generally requires the lawyer to certify a physician review.
- Public hospitals: a notice of claim is generally due within 90 days. See our NYC notice of claim guide.
- Wrongful death: generally 2 years from death under EPTL 5-4.1. The Grieving Families Act was vetoed in December 2025, and the 2026 version did not pass.
New Jersey
- Filing deadline: generally 2 years under N.J.S.A. 2A:14-2.
- Discovery rule: yes, from when the injury and its likely cause were or should have been known.
- Affidavit of merit: under N.J.S.A. 2A:53A-27, generally due within 60 days after the defendant’s answer.
- Wrongful death: generally 2 years from death under N.J.S.A. 2A:31-3.
Pennsylvania
- Filing deadline: generally 2 years under 42 Pa.C.S. § 5524.
- Discovery rule: yes. The MCARE Act’s 7-year outer limit was struck down by the Pennsylvania Supreme Court in Yanakos v. UPMC (2019).
- Certificate of merit: under Pa.R.C.P. 1042.3, filed with the complaint or within 60 days.
- Wrongful death: generally 2 years from death.
Connecticut
- Filing deadline: under C.G.S. § 52-584, 2 years from when the injury was or should have been discovered, but no more than 3 years from the act.
- Certificate of good faith: under C.G.S. § 52-190a, with a written opinion from a similar health care provider.
- Wrongful death: under C.G.S. § 52-555, generally 2 years from death and no more than 5 years from the act.
How do you find a lawyer for a stroke case?
Stroke cases depend on emergency medicine, neurology and neuroradiology experts, so look for a firm that handles hospital malpractice regularly. You can compare firms in the Top Lawyers category and on the New York location page, including the Kramer, Dillof, Livingston & Moore profile. No lawyer can promise a result.
Outcome: protect your health and your options
Recovery and rehabilitation come first. Then write down a timeline of symptoms, visits and who you spoke to, request the complete records and images, note the shortest deadline that could apply, and have a qualified lawyer and medical experts review whether faster care would likely have made a difference.
FAQs
Can you sue a hospital for missing a stroke?
Yes, if a qualified expert finds that staff failed to recognize or treat the stroke as accepted practice requires and that the delay caused harm. A bad outcome on its own is not enough.
How long do you have to file a stroke misdiagnosis lawsuit in New York?
Generally 2 years and 6 months from the malpractice. A wrongful death claim is generally due within 2 years of death, and public hospital cases usually need a notice of claim within 90 days.
What evidence matters most in a missed stroke case?
The time symptoms began, triage and nursing notes, stroke scale scores, imaging times and reports, and any neurology consult or transfer records are usually central.
Is a missed TIA grounds for a lawsuit?
It can be, if a TIA was not properly evaluated and a stroke that likely could have been prevented followed. An expert review of the records is needed to tell.
Reminder: this article is general information only and is not legal or medical advice.
