Free Case Evaluation
FILL OUT THE FORM BELOW
TO REQUEST YOUR CASE REVIEW
Think It Is Too Late to Sue Your Doctor in New York?
Count from your last visit, not from the mistake.
New York's continuous treatment doctrine runs the two-year-six-month malpractice clock from the final date of ongoing treatment for the same condition, rather than from the day the error occurred.
On a patient who stayed with the same practice for two more years, that difference decides whether there is a case at all.
It is not automatic, and it is narrower than most people hope. Routine check-ups do not count. Neither does staying on a doctor's patient list.
But it is the reason a large number of New Yorkers who assume their window closed still have one open.
Continuous Treatment, at a Glance
- The clock can run from the last treatment date instead of the date of the error
- The treatment has to be for the same illness, injury, or condition
- Routine and diagnostic-only visits do not qualify
- It applies to the 90-day public hospital notice period too
- It works alongside the foreign object rule and Lavern's Law, not instead of them
- The answer usually lives in records nobody has requested yet

What the Continuous Treatment Doctrine Does to the 30-Month Clock
CPLR § 214-a gives a patient two years and six months to sue for medical, dental, or podiatric malpractice, measured "of the act, omission or failure complained of or last treatment where there is continuous treatment for the same illness, injury or condition which gave rise to the said act, omission or failure."[1]
That final clause is the doctrine, written into the statute itself.
The reasoning behind it is practical rather than technical. A patient in the middle of a course of treatment should not have to sue the physician still treating them in order to preserve a claim, and interrupting care to file a lawsuit serves nobody.
The Course of Treatment Has to Be Continuous
Continuous means an established, ongoing course of care, not an unbroken string of appointments on a fixed schedule. Gaps are tolerated where the parties clearly contemplated further treatment and the patient returned as anticipated.
What breaks it is a genuine end: the patient transfers care elsewhere, the physician discharges them, or the relationship lapses with nothing further intended.
It Has to Be for the Same Condition
Treatment for an unrelated problem does not extend the clock on the original one. Seeing the same internist about a knee two years after a missed cardiac finding does not preserve the cardiac claim.
The condition being treated has to be the one that gave rise to the alleged error, or a condition arising from it.
Who Counts as the Same Provider
The doctrine reaches beyond a single physician. Treatment by a partner or associate within the same practice can continue the course. So can treatment at the same hospital or clinic where the institution itself is the defendant, and treatment by a physician acting as an agent of the original one.
An independent referral to an unrelated specialist generally does not, which is one of the places these questions turn sharply on the specific relationship between the providers.
Where the Clock Finally Starts
On the last date of that qualifying treatment. From there, the ordinary two years and six months runs. The doctrine does not create a new deadline; it moves the starting line.
What Does Not Count as Continuous Treatment
New York courts have drawn the boundary tightly, and this is where most arguments are lost.
Routine Examinations of a Healthy Patient
An annual physical is not a course of treatment. Repeated routine visits, even over many years, do not extend the clock on a claim, because nothing about them is treatment of a particular condition.
Diagnostic Visits, Even Repeated Ones
Diagnostic examinations are not treatment either, and the statute says so directly: continuous treatment does not include examinations undertaken at the patient's request for the sole purpose of ascertaining the state of their condition.
A patient who returns every six months to have a lump checked, and is checked and sent home each time, may be describing monitoring rather than treatment.
A Continuing Relationship Without Continuing Care
The existence of a doctor-patient relationship is not enough. Neither is the continuing nature of a diagnosis. New York requires continuing efforts by the physician to treat a particular condition, which is the holding of Massie v. Crawford and the reason so many of these motions come out the way they do.
A Failure to Diagnose With Nothing to Continue
This is the hardest rule in the doctrine. In Nykorchuck v. Henriques, a physician was alleged to have failed to properly evaluate and monitor a breast lump that later proved to be cancer. The Court of Appeals held that the continuing relationship did not toll the statute, because the failure to establish a course of treatment is not itself a course of treatment.
A doctor who missed something and then did nothing about it has, by definition, not been treating it. That is a real limit, and it is the one we look at first.
Continuous Treatment Across a Practice, a Hospital, and a Referral
The provider question decides more cases than the calendar question does, and the analysis is fact-specific.
- Group practices. Where partners or associates share responsibility for the patient's care, treatment by one can continue the course begun by another. Coverage arrangements and shared charts matter here.
- Hospitals and clinics. Where the institution is the defendant, ongoing care at the same facility for the same condition can extend the period, including care delivered by different employed physicians.
- Agency and vicarious relationships. A physician treating as the agent of the original provider can continue the course; an entirely independent practitioner generally cannot.
- Emergency department visits. Two separate ER visits, far apart, for the same complaint have been held not to constitute continuous treatment. An emergency department that treats and releases is usually not conducting a course of care.
One more point worth knowing: continuous treatment tolls the 90-day notice period for a public hospital claim, too. That can matter enormously when the defendant is NYC Health + Hospitals, where the ordinary window is brutally short.[2]
Four Ways New York Gives a Patient More Time
Continuous treatment is the broadest of them, and it is not the only one. Before concluding a case is time-barred, all four need to be checked against the same set of records. None of the four reaches outside malpractice: a fall, a crash, or a construction injury runs on the ordinary three-year period in CPLR § 214(5), which is where most New York injury claims start.
| Rule | What Triggers It | The Deadline It Produces |
|---|---|---|
| Continuous treatment | Ongoing care for the same condition by the same provider or practice | 2 years 6 months from the last treatment date |
| Foreign object | An item left in the body during a procedure | 1 year from discovery, or from facts leading to discovery |
| Lavern's Law | Negligent failure to diagnose cancer or a malignant tumor | 2 years 6 months from discovery, capped at 7 years from the act |
| Infancy toll (CPLR § 208) | The patient was a minor when the malpractice occurred | Tolled during infancy, with a 10-year ceiling in malpractice cases |
The infancy ceiling is worth reading carefully, because it is easy to invert: the ten-year limit in CPLR § 208 applies to medical, dental, and podiatric malpractice claims specifically, not to a child's ordinary personal injury claim.[3]
More than one of these can apply to the same patient. A missed cancer diagnosis by a physician who kept treating the patient afterward sits under both Lavern's Law and continuous treatment, and the statute takes the later of the two.
What to Do If You Believe Your Deadline Has Passed
Do not decide it on your own arithmetic, and do not decide it on what the hospital's risk management department told you.
Clients tell us about the surgery. They rarely mention the six follow-up appointments afterward, because those felt routine. In New York those appointments are frequently the reason the case is still alive. The statute cares about the last day they were treated, and those post-surgery follow-ups can shift the deadline.
- Write down the last date you saw that provider, and what the visit was for. That date, not the date of the error, is frequently the one that governs.
- List every provider in the same practice or system you saw for the same problem afterward.
- Request your complete records, including the visit notes for the follow-up appointments. The visits that matter are often the ones the patient considers unimportant.
- Find out whether the facility is public. A public hospital compresses everything, and it changes which analysis comes first.
- Ask before the calendar answers for you. There is no fixing a deadline that has run, and no cost to having the question answered properly.
Our page on the New York medical malpractice statute of limitations lays out how these periods interact across an entire case.