Medical Malpractice Rules in New York

Two years and six months from the act or omission, or from the last treatment when there is continuous treatment for the same condition. Exceptions: for a foreign object left in the body, one year from discovery (or discovery of facts that would reasonably lead to it), whichever is earlier; for negligent failure to diagnose cancer or a malignant tumor, two years and six months from when the patient knew or should have known of the negligence and resulting injury (or from the last continuous treatment), but no later than seven years after the act or omission.