Last Updated on April 8, 2026

How to Start a Medical Malpractice Lawsuit in New York State

Medical malpractice happens when a healthcare provider's negligence causes harm. Maybe a cancer diagnosis was missed for years, a surgeon made a preventable error, or a medication mistake changed your life. These situations are devastating, and understanding how to move forward legally can feel overwhelming when you're already dealing with the aftermath of medical harm. […]

Medical malpractice happens when a healthcare provider's negligence causes harm. Maybe a cancer diagnosis was missed for years, a surgeon made a preventable error, or a medication mistake changed your life. These situations are devastating, and understanding how to move forward legally can feel overwhelming when you're already dealing with the aftermath of medical harm.

Starting a medical malpractice lawsuit in New York involves specific legal requirements that differ from other personal injury cases. The state has strict deadlines, mandatory paperwork, and procedural rules designed to filter out weak claims while protecting patients who've been genuinely harmed. This guide walks through what you need to know about bringing a medical malpractice case, from understanding whether you have a valid claim to actually filing the lawsuit.

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What Counts as Medical Malpractice in New York

Medical malpractice isn't just a bad outcome. Healthcare involves risks, and not every complication means someone did something wrong. Under New York law, malpractice requires proving that a healthcare provider deviated from the accepted standard of care and that this deviation directly caused your injury.

The standard of care means what a reasonably competent medical professional in the same specialty would have done under similar circumstances. A cardiologist is held to the standard of other cardiologists, a surgeon to other surgeons. If your doctor's actions fell below what competent peers would consider acceptable, and you were injured as a result, you may have a malpractice claim.

Common examples include:

  • Misdiagnosis or delayed diagnosis of serious conditions like cancer, heart attacks, or strokes
  • Surgical errors such as operating on the wrong body part, leaving instruments inside a patient, or damaging organs during a procedure
  • Birth injuries caused by failing to monitor fetal distress, improper use of delivery instruments, or delayed C-sections
  • Medication errors, whether prescribing the wrong drug, incorrect dosages, or failing to recognize dangerous drug interactions

The critical element is causation. You must show that the provider's mistake directly caused harm that wouldn't have occurred otherwise. If you had cancer that was misdiagnosed, you need to demonstrate that earlier detection would have improved your prognosis or treatment options. This connection between the error and your injury requires medical evidence and expert testimony.

Understanding New York's Deadline to File Your Case

New York imposes strict time limits for filing medical malpractice lawsuits under CPLR Section 214-a. Generally, you have two years and six months from the date of the alleged malpractice to start your lawsuit. This statute of limitations is firm, and missing it typically means losing your right to sue permanently.

The clock usually starts on the date the negligent act occurred, not when you discovered the harm. If a surgeon made an error during a procedure on January 1, 2023, you would generally need to file by July 1, 2025, even if you didn't realize something was wrong until months later.

However, New York recognizes that some medical errors aren't immediately apparent. This is especially true for cancer cases, which led to the passage of Lavern's Law in 2018. Named after a woman who died after her lung cancer was misdiagnosed, this law created an important exception for cancer and certain other conditions.

Under Lavern's Law, if your case involves a failure to diagnose cancer or certain benign tumors, the statute of limitations is two and a half years from when you discovered or reasonably should have discovered the malpractice. This discovery rule is capped at seven years from the actual negligent act. For example, if a radiologist missed obvious signs of cancer on a 2020 scan, but you weren't diagnosed until 2024 when the cancer had spread, Lavern's Law would allow you to file within two and a half years of the 2024 discovery, even though more than the standard period had passed since the original error.

Special rules apply for minors. The statute of limitations is generally tolled until a child turns 18, with some additional limitations. If your child was harmed by medical negligence during birth or childhood, different deadlines may apply depending on when the injury occurred and when it was discovered.

Cases involving public or municipal hospitals in New York City or other government healthcare facilities face even tighter deadlines. You must file a notice of claim within 90 days of the malpractice under General Municipal Law Section 50-e, and then file the actual lawsuit within one year and 90 days under Section 50-i. These shortened timeframes make it critical to consult an attorney immediately if your case involves a public hospital.

Do You Need an Expert to Review Your Case First

Yes, and this requirement sets medical malpractice cases apart from most other lawsuits. Before filing or immediately after, your attorney must obtain and file a certificate of merit under CPLR Section 3012-a. This certificate is a sworn statement from your lawyer confirming that a qualified medical professional has reviewed your records and found a reasonable basis to believe malpractice occurred.

The reviewing physician must be in the same or similar specialty as the defendant. If you're claiming a cardiologist missed signs of a heart attack, a cardiologist needs to review the case, not a general practitioner or orthopedic surgeon. This ensures that the evaluation comes from someone who understands the relevant medical standards.

The certificate of merit requirement serves as an early filter for frivolous lawsuits. It forces plaintiffs to obtain expert review before filing, preventing cases without medical merit from clogging the courts. For you as a potential plaintiff, this means you cannot simply file a lawsuit because you're unhappy with your medical outcome. A qualified expert must first confirm that the care you received fell below acceptable standards and caused injury.

Failing to file a certificate of merit can result in dismissal of your case. Courts take this requirement seriously, though they may grant extensions if there's a valid reason for the delay and the underlying claim has merit. The certificate doesn't need to detail every aspect of your case, but it must demonstrate that a qualified expert has reviewed the relevant records and believes there's a reasonable basis to proceed.

This requirement means you need to work with an attorney who has access to medical experts willing to review cases. Gathering your medical records early is essential because the expert needs comprehensive documentation to evaluate whether malpractice occurred.

The Porter Law Group has longstanding connections with medical experts from various fields of specialization. We can call on these experts to evaluate your case, determine where malpractice occurred, and, if necessary, testify in court. Don't hesitate to contact us for more information.

Can You Sue for Medical Malpractice in New York

You can sue for medical malpractice in New York if you can prove that a healthcare provider's negligence caused you harm. This applies to doctors, nurses, hospitals, clinics, and other medical professionals or facilities. The key is demonstrating both that the care fell below accepted standards and that this substandard care directly caused injuries you wouldn't have suffered otherwise.

The right to sue exists regardless of whether you signed consent forms before treatment. Informed consent documents don't waive your right to hold providers accountable for negligence. They acknowledge you understand treatment risks, but they don't excuse providers from the duty to meet professional standards of care.

You can bring a claim even if you continued seeing the same provider after the malpractice occurred. Sometimes patients don't realize an error happened until much later, or they may not have had realistic options to switch providers. Continuing treatment doesn't waive your legal rights, though it may affect the statute of limitations under the continuous treatment doctrine in some cases.

If the person harmed by malpractice has died, family members can file a wrongful death lawsuit. These cases seek compensation for funeral expenses, loss of financial support, and loss of companionship. The estate may also have a claim for the deceased person's pain and suffering before death, as well as medical expenses incurred.

One important consideration involves cases related to COVID-19 treatment. New York temporarily enacted immunity provisions for healthcare providers treating patients during the pandemic under the Emergency or Disaster Treatment Act. While these provisions have been repealed, they may still affect cases involving care provided during the emergency period. Providers had some protection from liability if they acted in good faith, complied with government directives, and didn't engage in gross negligence. Many COVID-era malpractice claims have been dismissed at early stages based on this immunity, though cases involving gross negligence can still proceed.

If you believe that you were harmed by a healthcare provider's gross negligence from any covid-related treatment, or lost a loved one because of it, contact us for a free case evaluation, and know your legal options.

Gathering the Evidence You Need Before Filing

Medical malpractice cases require substantial evidence, and gathering it should begin as soon as you suspect negligence occurred.

The foundation of any case is your complete medical records from all providers involved in your care. This includes office visit notes, hospital records, surgical reports, lab results, imaging studies like X-rays or MRIs, and medication records.

You have the right to obtain copies of your medical records under federal HIPAA laws and New York state regulations. Providers must respond to written requests, though they can charge reasonable copying fees. Request records as soon as possible because some facilities have retention policies that may lead to destruction of older records.

Beyond your own records, imaging studies are particularly valuable. The actual X-rays, CT scans, or MRIs, not just the radiologist's report, can be reviewed by experts who may identify findings that were missed or misinterpreted. If your case involves a failure to diagnose cancer or another condition visible on imaging, the films themselves are critical evidence.

Documentation of how the malpractice affected your life strengthens your case. Keep records of all medical treatment you've needed because of the injury, including bills and receipts. Document lost wages if you've missed work, including statements from your employer about time missed and income lost. A journal describing your pain, limitations, and how the injury has affected your daily life and relationships provides powerful evidence of non-economic damages.

Expert opinions form the backbone of medical malpractice cases. You'll need qualified medical professionals willing to testify that the defendant's care fell below accepted standards and caused your injuries. Your attorney will typically work with medical experts to review your records and provide detailed opinions about what should have been done differently and how that would have changed your outcome.

Witness statements can also be valuable. If family members observed your condition before and after the malpractice, their testimony about changes in your health and functioning adds weight to your case. Nurses or other medical staff who witnessed the care in question might provide relevant information, though getting current employees to testify against their employer can be challenging.

Filing Your Medical Malpractice Lawsuit

Once you've gathered evidence and obtained the required certificate of merit, the actual filing process begins. Medical malpractice lawsuits in New York are filed in the Supreme Court, which despite its name is the state's general trial court. Cases involving lower damage amounts might be filed in Civil Court depending on the county and circumstances.

The lawsuit starts with filing either a summons with notice or a summons and complaint. The summons with notice is a shorter document that informs the defendant they're being sued and gives the general nature of the claim without detailed allegations. The full complaint, which outlines all specific allegations and legal claims, can be filed later. Alternatively, you can file the complete complaint from the start.

When filing, the case must be specifically designated as a medical malpractice action. This designation is important because many counties have specialized parts of the court that handle medical malpractice cases exclusively. These specialized parts have judges experienced in the complex medical and legal issues these cases involve. For example, Bronx County has Part 19 specifically for medical malpractice cases.

Most New York courts now require electronic filing through the New York State Courts Electronic Filing system, known as NYSCEF. This system allows documents to be filed online rather than in person, though there are specific formatting and filing requirements you must follow.

After filing, you must serve the defendants with the lawsuit papers. Service means formally delivering copies of the legal documents to each defendant according to strict procedural rules. For individual defendants like doctors, this typically means personal service by a process server. For hospitals and corporate entities, service is made on designated agents.

If you filed a summons with notice rather than a full complaint, the defendants can demand that you provide the complaint within 20 days. You must respond to this demand promptly, or risk dismissal of your case. Courts can grant extensions if you have a reasonable excuse for delay, such as law office error or technical difficulties with e-filing, but you'll need to show that your underlying claim has merit and that the delay didn't prejudice the defendants.

Some court parts require requesting a preliminary conference before or shortly after filing. This conference is a meeting with the judge to set deadlines for discovery, expert disclosures, and other pre-trial matters. It helps keep the case moving toward resolution.

What Happens After You File

Once your lawsuit is filed and served, the case enters the discovery phase. Discovery is the process where both sides exchange information and evidence. You'll need to provide your medical records, answer written questions called interrogatories, and give a deposition where the defense attorneys question you under oath about your medical history, the treatment at issue, and your injuries.

The defendants will also conduct discovery. They'll obtain records from all your healthcare providers, not just those involved in the malpractice, to understand your complete medical history. They may hire their own medical experts to examine you and review your records. This process can feel invasive, but it's a standard part of litigation.

Expert disclosure is a critical phase. Both sides must identify their expert witnesses and provide detailed reports or affidavits explaining the experts' opinions. Your experts will explain how the defendant deviated from the standard of care and caused your injuries. The defense experts will typically argue that the care was appropriate or that any problems weren't caused by negligence.

Settlement negotiations often occur throughout the litigation process. Many medical malpractice cases settle before trial because trials are expensive, time-consuming, and unpredictable for both sides. Your attorney will negotiate with the defendants' insurance company or attorneys to try to reach a fair settlement. You have complete control over whether to accept a settlement offer. Your attorney can advise you, but the final decision is yours.

If the case doesn't settle, it proceeds to trial. New York medical malpractice trials are typically before a jury, though you can opt for a judge trial in some circumstances. Trials involve presenting evidence, examining witnesses including medical experts, and arguing your case to the jury. The jury then decides whether malpractice occurred and, if so, how much compensation you should receive.

Defendants often file motions for summary judgment, which are requests for the judge to dismiss the case before trial. These motions argue that even viewing the evidence in the light most favorable to you, no reasonable jury could find malpractice. In New York, summary judgment motions in medical malpractice cases must be filed within 90 days of the filing of the note of issue, which is the document that declares the case ready for trial. These motions must include a Statement of Material Facts outlining the undisputed facts.

Courts balance strict procedural rules against the goal of resolving cases on their merits rather than technicalities. If you miss a deadline or make a procedural error, judges have some discretion to grant relief if you can show a reasonable excuse for the mistake and that your underlying case has merit. However, relying on judicial discretion is risky. Following all rules and deadlines from the start is always better.

What Compensation Can You Recover

If you prove your medical malpractice case, you can recover several types of damages.

Economic damages compensate for financial losses. This includes all past and future medical expenses caused by the malpractice, such as additional surgeries, medications, rehabilitation, home care, and medical equipment. If the malpractice has left you with permanent injuries requiring ongoing care, expert testimony about the cost of future treatment becomes part of your damages.

Lost wages are recoverable if you missed work because of the injuries. This includes not just past lost income but also future earning capacity if the malpractice has left you unable to work or able to work only in a reduced capacity. Economists and vocational experts often testify about the present value of lifetime lost earnings in cases involving permanent disability.

Non-economic damages compensate for pain and suffering, which includes physical pain, emotional distress, loss of enjoyment of life, and the overall impact the injuries have had on your quality of life. These damages are subjective and can vary significantly based on the severity and permanence of your injuries. New York doesn't cap pain and suffering damages in medical malpractice cases, unlike some other states.

In wrongful death cases, additional damages are available. The estate can recover the deceased person's medical expenses and pain and suffering from the time of injury until death. Family members can recover funeral and burial expenses, loss of financial support the deceased would have provided, and loss of companionship, guidance, and nurturing. These damages recognize that malpractice doesn't just harm the patient but devastates families.

New York doesn't allow punitive damages in medical malpractice cases. Punitive damages, which are designed to punish particularly egregious conduct, are available in some other types of cases but not for medical negligence.

The amount of compensation varies dramatically based on the specific facts of each case. A delayed cancer diagnosis that reduced survival chances might result in a multi-million dollar verdict or settlement. A medication error causing temporary harm might result in a smaller recovery. The severity of the injury, the strength of the evidence, the credibility of the experts, and even the jurisdiction where the case is tried all affect the outcome.

Choosing the Right Attorney for Your Case

Medical malpractice cases are among the most complex and expensive types of personal injury litigation. Not every personal injury attorney handles medical malpractice, and for good reason. These cases require substantial upfront investment in medical experts, detailed understanding of medical procedures and standards, and experience navigating the specialized procedural requirements.

When looking for an attorney, focus on experience specifically in medical malpractice. Ask how many medical malpractice cases they've handled, what results they've achieved, and whether they have relationships with qualified medical experts who can review cases. The certificate of merit requirement means your attorney needs access to credentialed physicians willing to evaluate potential claims.

Most medical malpractice attorneys work on a contingency fee basis. This means they don't charge upfront fees but instead take a percentage of any settlement or verdict they recover for you. In New York, contingency fees in medical malpractice cases are subject to a sliding scale set by statute. The attorney receives 30% of the first $250,000 recovered, 25% of the next $250,000, 20% of the next $500,000, and decreasing percentages on higher amounts. This structure ensures attorneys are compensated for the substantial work and risk involved while protecting clients from excessive fees.

The contingency fee arrangement makes legal representation accessible even if you can't afford to pay an attorney by the hour. It also aligns your attorney's interests with yours because they only get paid if you recover compensation. However, understand that you may still be responsible for case expenses like filing fees, costs of obtaining medical records, and expert witness fees, depending on your fee agreement.

A good attorney will be honest about your case's strengths and weaknesses. Not every bad medical outcome is malpractice, and experienced attorneys will tell you if your case doesn't meet the legal requirements rather than taking a case they don't believe in. They should explain the process, likely timeline, and what to expect in terms that make sense without legal jargon.

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Summing It Up

Starting a medical malpractice lawsuit in New York requires navigating strict deadlines, mandatory expert review, and complex procedural rules. You generally have two and a half years from the date of malpractice to file, with important exceptions for cancer misdiagnosis under Lavern's Law and special shorter deadlines for claims against public hospitals. Before filing, a qualified medical expert must review your case and confirm there's a reasonable basis to believe malpractice occurred.

The foundation of any successful case is proving that your healthcare provider deviated from accepted standards of care and that this deviation directly caused injuries you wouldn't have suffered otherwise. This requires comprehensive medical records, expert testimony, and evidence documenting the full impact the malpractice has had on your life.

Medical malpractice cases are substantial undertakings that can take years to resolve. They involve significant discovery, expert testimony, and often hard-fought litigation against well-funded defense teams representing doctors and hospitals. However, they also provide the only real avenue for accountability when medical negligence causes serious harm.

If you believe you or a loved one has been harmed by medical malpractice, time is critical. The statute of limitations is unforgiving, and gathering the evidence needed for a strong case takes time. Consulting with an experienced medical malpractice attorney as soon as you suspect negligence gives you the best chance of protecting your rights and obtaining the compensation you deserve for the harm you've suffered. Reach out to the Porter Law Group today. Fill out our online form for a free consultation and know your options. You can also call 833-PORTER9 or email info@porterlawteam.com to get started.

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Michael S. Porter
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Originally from Upstate New York, Mike built a distinguished legal career after graduating from Harvard University and earning his juris doctor degree from Syracuse University College of Law. He served as a Captain in the United States Army Judge Advocate General’s Corps, gaining expertise in trial work, and is now a respected trial attorney known for securing multiple million-dollar results for his clients while actively participating in legal organizations across Upstate NY.
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Eric C. Nordby
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Eric, with nearly three decades of experience in personal injury litigation, holds a law degree with honors from the University at Buffalo School of Law and a Bachelor's Degree from Cornell University. His extensive career encompasses diverse state and federal cases, resulting in substantial client recoveries, and he actively engages in legal associations while frequently lecturing on legal topics.
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This page was Legally Reviewed by Eric C. Nordby on . Our experts verify everything you read to make sure it's up to date. For information on our content creation and review process read our editorial guidelines. If you notice an error or have any questions about our content please contact us.
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