Medical Malpractice Litigation
When a doctor or hospital's mistake causes serious harm, the injury is compounded by a system that closes ranks. We represent patients and families in medical malpractice claims across Washington, building the expert proof these cases demand and holding providers and hospitals accountable for negligence that should never have happened.
Talk to an attorneyFounded
1965
Attorneys
11
AV-rated
Martindale-Hubbell
Office
Bellevue, WA
Founded
1965
Attorneys
5
AV-rated
Martindale-Hubbell
Office
Bellevue, WA
Medical malpractice lawyers for Bellevue and Seattle patients
Oseran Hahn represents injured patients and their families in medical malpractice claims. These are among the hardest cases in civil litigation: they require qualified medical experts, turn on a standard of care that only physicians can establish, and are defended aggressively by hospitals and insurers. Washington law defines the claims by statute, requires mediation before trial, and, unlike many states, places no cap on a victim's damages. We litigate negligence and informed-consent claims, the full range of malpractice injuries, and the hospital and corporate liability behind them.
A medical malpractice case is a claim that a provider's care fell below the accepted medical standard and harmed the patient. We prove negligence through the qualified experts the law requires, establishing the standard of care and how it was breached. We bring informed-consent claims when a patient was never told the risks they had a right to know. We handle the full range of cases, from misdiagnosis to surgical and birth injuries. We navigate the statutory deadlines and the mandatory mediation these claims require. And we pursue the hospitals and corporate entities whose own negligence, not just an individual's, caused the harm.
Proving medical negligence: the standard of care
Washington defines a malpractice claim by statute: a provider is liable when their care failed to meet the accepted standard of care for their profession and that failure caused the injury (RCW 7.70.030 and RCW 7.70.040). Proving it is the hard part. The standard of care is what a reasonably prudent provider in the same specialty would have done, and Washington requires qualified medical experts to establish both the standard and how it was breached, except in the rare case where the negligence is obvious to a layperson. Causation is equally demanding, because the defense will argue the bad outcome came from the underlying illness rather than the care. We build these cases with the right specialists from the start, because without credible expert testimony a malpractice claim does not survive.
Informed consent claims
A separate kind of claim arises not from how the treatment was performed but from what the patient was never told. Washington recognizes a cause of action for failure to obtain informed consent (RCW 7.70.050): a provider must disclose the material risks of a proposed treatment, the alternatives, and the risks of doing nothing, so the patient can make a real choice. When a serious risk that should have been disclosed comes to pass, and a reasonable patient told of it would have chosen differently, the lack of consent is itself actionable, separate from whether the treatment was performed competently. We evaluate the consent discussion and the records to determine whether the patient was truly informed or merely asked to sign.
The injuries we litigate
Medical malpractice takes many forms, and we handle the serious ones: misdiagnosis and delayed diagnosis, especially of cancer and heart conditions where timing changes everything; surgical errors, including wrong-site surgery and retained instruments; birth injuries to mother or child; medication and anesthesia errors; and negligent nursing, monitoring, and hospital care. What these share is a serious, often permanent injury caused by a preventable failure, and a defense team that will work hard to attribute the harm to anything but the care. We take the cases where the injury is significant and the negligence is real, because the cost and difficulty of malpractice litigation only make sense when both are true.
Deadlines and the path to resolution
Medical malpractice claims run on strict deadlines and a defined procedure. Washington generally requires suit within three years of the negligent act, or within one year of when the patient discovered or should have discovered the injury, whichever is later (RCW 4.16.350); the discovery rule matters because some injuries surface long after the treatment. The statute once imposed an eight-year outer limit, but Washington's Supreme Court held that repose unconstitutional, so the discovery rule controls. Before trial, the law requires the parties to mediate (RCW 7.70.100), and many cases resolve there. We manage the timeline carefully, because a missed limitations deadline ends even the strongest case.
Damages and who is liable
When negligence is proven, the recovery has to account for everything the injury costs: past and future medical care, lost earning capacity, and the pain, disability, and loss of quality of life the patient lives with, and Washington, unlike many states, places no statutory cap on those noneconomic damages (its cap was struck down as unconstitutional in Sofie v. Fibreboard). Liability often reaches beyond the individual provider. A hospital can be vicariously responsible for its staff and directly liable for its own corporate negligence, such as negligent credentialing or inadequate staffing, and long-term-care facilities carry their own duties. We identify every responsible party and every available source of recovery, because a life-altering injury requires compensation that actually covers a lifetime.
Sixty years representing Pacific Northwest individuals and families, with a trial group that takes serious medical malpractice cases and the resources to fund the experts they require. These cases are expensive and hard-fought, so we are selective, and when we take one, we commit to it fully.
We invest in the expert proof.
Malpractice cases live or die on qualified medical experts, and good ones are expensive. We fund the specialists a case needs, because cutting corners on expert proof is how strong claims are lost.
We're selective, and then we commit.
We take cases with a serious injury and real negligence, not borderline claims. That focus means the matters we accept get our full effort against a well-funded defense.
We measure the whole loss.
A catastrophic injury costs a lifetime of care and lost capacity. We build the damages case to cover all of it, working with life-care planners and economists, because Washington places no cap on what a jury can award.
The attorneys behindthe work.
Our business and corporate attorneys handle this work alongside our litigation team, so you have coverage whether your matter stays transactional or becomes something more.
What clientsask us first.
How do I know if I have a medical malpractice case?
A bad outcome alone isn't malpractice; medicine carries risk even when care is excellent. A claim requires that the provider's care fell below the accepted medical standard and that the failure caused your injury (RCW 7.70.040). That almost always takes a qualified medical expert to confirm, which is where we start: we obtain the records and have them reviewed by a specialist before committing to a case. If the care was negligent and the injury is serious, you likely have a claim worth pursuing.
How long do I have to file a malpractice claim in Washington?
Generally three years from the negligent act, or one year from when you discovered or reasonably should have discovered the injury, whichever is later (RCW 4.16.350). The discovery rule matters because some injuries, a retained surgical instrument or a misread scan, aren't apparent until much later. Washington's old eight-year absolute deadline was struck down as unconstitutional, so the discovery rule governs. Still, these deadlines are firm and fact-specific, so the safest course is to have a potential claim evaluated as soon as you suspect something went wrong.
What is an informed consent claim?
It's a claim that you weren't given the information needed to make a real decision about your care. Washington requires providers to disclose the material risks of a treatment, the alternatives, and the risks of declining it (RCW 7.70.050). If a serious, undisclosed risk materializes, and a reasonable patient who had been told would have chosen differently, the failure to obtain informed consent is its own basis for liability, separate from whether the treatment itself was done correctly. We review what you were actually told against what you should have been told.
Is there a limit on how much I can recover?
Not in Washington. Many states cap noneconomic damages, the compensation for pain, disability, and loss of quality of life, but Washington's Supreme Court struck its cap down as unconstitutional (Sofie v. Fibreboard), so there is no statutory ceiling on a malpractice recovery here. What you can recover depends on the full extent of your injury and losses, including future medical care and lost earning capacity. We build the damages case to capture all of it, because a serious injury imposes costs for the rest of a life.
Can I sue the hospital, or only the doctor?
Often both. A hospital can be vicariously liable for the negligence of its employees and, in some cases, the physicians who practice there, and it can be directly liable for its own corporate negligence, such as negligently credentialing a dangerous provider or failing to staff adequately. Nursing homes and long-term-care facilities carry their own duties as well. Identifying every responsible party matters, both to fully account for what happened and to reach all the available insurance and assets. We map the liability before filing.
Will my case go to trial?
Most don't, but we prepare every case as if it will. Washington requires the parties to mediate before a malpractice case can go to trial (RCW 7.70.100), and many cases resolve in that process once the expert proof is developed and the defense sees the strength of the claim. The cases that don't settle are tried. Either way, the early work is the same: the records, the experts, and the damages have to be built thoroughly, because that's what drives both a strong settlement and a trial verdict.
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Medical malpractice representation for injured Pacific Northwest patients and families, from misdiagnosis to surgical and birth injury.
Oseran Hahn P.S. · 11225 SE 6th St, Suite 100 · Bellevue, WA 98004
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