Misdiagnosis Lawsuit in New York: Know Your Rights

A misdiagnosis or delayed diagnosis in NY may constitute medical malpractice. Victims generally have 2.5 years under CPLR §214-a to file a lawsuit and seek compensation.

Last updated July 2026
Laurence P. Banville, New York personal injury attorney
Laurence P. Banville Managing Partner · NY & D.C. Bars

Frequently asked questions

Can I sue a doctor for misdiagnosis in New York?

Yes. Under New York law, a misdiagnosis can be the basis for a medical malpractice lawsuit if a competent doctor in the same specialty would have made the correct diagnosis under similar circumstances. You must show the misdiagnosis deviated from the accepted standard of care and directly caused you harm. Not every diagnostic error rises to malpractice, but missed cancer, delayed stroke diagnosis, and failure to order necessary tests are common grounds for a claim.

What is the statute of limitations for a misdiagnosis lawsuit in New York?

In New York, medical malpractice claims — including misdiagnosis cases — must generally be filed within 2 years and 6 months of the negligent act under CPLR §214-a. However, if the malpractice was not immediately discoverable, the clock may start from the date you discovered, or reasonably should have discovered, the error. There are also special rules for minors and for cases involving continuous treatment by the same provider. Consulting an attorney as soon as possible is critical because missing this deadline bars your claim entirely.

What do I need to prove in a New York misdiagnosis malpractice case?

To succeed in a misdiagnosis lawsuit in New York, you must establish four elements: (1) a doctor-patient relationship existed, creating a duty of care; (2) the doctor deviated from the accepted medical standard of care by failing to correctly diagnose your condition; (3) that deviation directly caused your injury or worsened your condition; and (4) you suffered measurable damages as a result. New York requires a Certificate of Merit — a statement from a qualified medical expert confirming your claim has merit — before the case can proceed.

What compensation can I recover in a misdiagnosis lawsuit in NY?

If your misdiagnosis claim is successful, you may recover economic damages such as additional medical costs, lost wages, and future care expenses caused by the delay or error. You may also seek non-economic damages for pain and suffering, loss of enjoyment of life, and emotional distress. New York does not cap compensatory damages in medical malpractice cases, though punitive damages are rare and reserved for egregious conduct. The value of your case depends on the severity of harm the misdiagnosis caused and how your condition changed as a result.

Laurence P. Banville

Reviewed by Laurence P. Banville, Esq.

Managing Partner, Banville Law · New York & D.C. Bars

Laurence Banville is a New York personal injury attorney and the Managing Partner of Banville Law. Born in County Wexford, Ireland, he earned his law degree summa cum laude from University College Dublin and once defended insurance companies in product-liability litigation — experience he now uses for injured New Yorkers. He has been named to the Irish Legal 100 and the Irish Echo’s Top 40 Under 40, and is an AVVO Rated attorney.

NY Bar D.C. Bar Irish Legal 100 AVVO Rated AAJ Member

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