Where the medical malpractice claim is predicated on an alleged failure to properly diagnose a condition, the continuous treatment doctrine may apply as long as the symptoms being treated indicate the presence of that condition. However, routine" or diagnostic examinations, even when conducted repeatedly and over a period of time, do not constitute a course of treatment for the purpose of tolling the statute of limitations.
Vines v. New York City Health & Hosps. Corp., NY Slip Op 04096 (1st Dep't June 23, 2021)