Award-Winning D.C. Trial Lawyers for Patients Harmed by a Late Diagnosis
A diagnosis error may involve a missed illness, an incorrect diagnosis, or a delay in recognizing a condition that required timely care. Simeone & Miller, LLP represents patients across the District of Columbia whose conditions worsened because warning signs, test results, imaging, or referrals were not properly evaluated or acted upon. By the time the truth surfaces, the treatment window and options may have significantly narrowed. Our Washington, D.C. medical malpractice attorneys reconstruct what your providers knew and what a careful physician would have done.
Why Patients Across the District Trust Simeone & Miller
Diagnosis-error claims require a careful review of medical records, qualified expert analysis, and evidence that earlier diagnosis or treatment would have changed the outcome. Simeone & Miller develops these cases around the medical timeline, the applicable standard of care, and the harm caused by a delayed or incorrect diagnosis. Reasons clients trust us include:
- A firm founded in 2002. Thomas J. Simeone and Craig D. Miller founded Simeone & Miller and remain its partners. Thomas Simeone has been named among Lawdragon’s 500 Leading Plaintiff Lawyers.
- Recognitions from national organizations. The firm’s attorneys have received Martindale-Hubbell AV Preeminent ratings and recognition from Super Lawyers, Washingtonian Magazine, and the Multi-Million Dollar Advocates Forum.
- Experience representing injured clients and families. The firm reports recovering almost $100 million for clients across its personal-injury and medical-malpractice practice.
- Medical-malpractice case costs advanced. The firm advances qualified expert fees, court filing fees, deposition costs, and directly related expenses in medical malpractice cases.
- Direct attorney involvement. Clients work directly with a skilled medical-malpractice attorney who reviews the claim’s merits and discusses available legal options.
- Service in Washington, D.C., Maryland, and Virginia. The firm represents clients throughout the region.
- No attorney fee unless the firm makes a recovery. Medical malpractice claims are handled on a contingency basis, and the initial consultation is free.
A delayed or incorrect diagnosis can leave patients and families facing harder treatment, uncertainty, and avoidable losses. When the evidence shows that a provider’s failure to meet the standard of care contributed to the harm, a medical malpractice claim can provide a path toward accountability and financial support for the consequences.
Misdiagnosis, Delayed Diagnosis, and Failure to Diagnose Are Not the Same Thing
Most sites use these interchangeably. They describe different failures, and the distinction changes which records matter and which expert you need.
- Misdiagnosis. The provider reaches a diagnosis, but the wrong one. A heart attack is treated as reflux. A misdiagnosis claim often involves treatment the patient never needed.
- Delayed diagnosis. The diagnosis is eventually correct, but arrives after earlier care would have changed the outcome. The injury is the lost interval, not the final answer.
- Failure to diagnose. The condition is never identified, and the patient is sent home reassured. This is the pattern behind many failure to diagnose cancer claims, where a screening was skipped or a referral was never made.
- Misread or mishandled results. The information existed, and no one acted on it. Misread test results and uncommunicated lab values belong here.
Naming the failure decides whether the case is about the decision your doctor made or the information your doctor never obtained. Identifying that distinction early helps focus the record review, expert analysis, and proof needed to show how the diagnostic failure changed the patient’s course of care and outcome.
What Turns a Diagnostic Failure Into a Malpractice Case
Medicine is uncertain, and a wrong answer is not automatically negligence. To recover, a patient must show that a provider fell below the accepted standard of care and that the failure caused harm the patient would otherwise have avoided. That means establishing what a reasonably careful physician would have done with the same presentation, then showing what a timely diagnosis would have changed. In a cancer case, that may be the stage at treatment. In a stroke case, it may be a closed treatment window. We build that comparison from the record.
Deadlines and Pre-Suit Rules Are Different in D.C., Maryland, and Virginia
In the District, a claim generally accrues when the injury occurs, and the catch-all limitation period in the D.C. Code gives a patient three years from accrual to sue. Where the connection between the injury and the negligence was obscure at the time, D.C. applies a discovery rule instead. The claim then accrues only when the patient knows, or by reasonable diligence should know, of the injury, its cause in fact, and some evidence of wrongdoing. The D.C. Court of Appeals has noted this is a particular concern where a provider reassured the patient that all was well.
The District also requires a patient to serve the intended defendant with notice of intent to sue at least 90 days before filing. Generally, a malpractice action cannot be commenced in D.C. Superior Court until that is done, though a court may excuse or waive the requirement in limited circumstances. When notice is served within 90 days of the deadline expiring, the filing period is extended 90 days from service. If a diagnosis error caused a death, the deadline is different. A District wrongful death claim must be brought by the estate’s personal representative within two years of the date of death.
The neighboring jurisdictions treat these cases differently. Maryland’s filing deadline is the earlier of five years from when the injury occurred or three years from when it was discovered. Maryland requires the claim to be filed with the Director of the Health Care Alternative Dispute Resolution Office. Separately, a certificate of a qualified expert must attest to a departure from the standard of care and to proximate cause within 90 days of the complaint. Missing that deadline means dismissal without prejudice, though in defined circumstances the court must allow up to 90 more days.
Virginia applies a two-year limitation period for personal injury, with narrow malpractice extensions capped at 10 years. For a negligent failure to diagnose cancer, Virginia allows one year from the date the diagnosis is finally communicated to the patient, within that 10-year cap. There, requesting service of process is itself deemed a certification that the plaintiff already holds a signed expert opinion on both deviation and causation.
Speak With a Washington, D.C. Diagnosis Error Attorney
If your condition was missed, mislabeled, or found too late, the records that answer the question are already written, and the clock is running. Contact Simeone & Miller for a free consultation. We will review the care you received, tell you honestly whether we see a claim, and you pay nothing unless we recover compensation for you.
Frequently Asked Questions
How long do I have to file a diagnosis error claim in Washington, D.C.?
The District’s catch-all limitation period is three years from accrual, and a malpractice suit also requires 90 days’ advance notice to the provider. Where the discovery rule applies, accrual turns on when you reasonably should have known of the injury, its cause in fact, and some evidence of wrongdoing, so the practical deadline varies. Have the timeline reviewed rather than assume it has passed. Wrongful death claims must be filed within two years of the date of death.
Is every wrong diagnosis medical malpractice?
No. Diagnosis narrows possibilities, and a careful physician can still be wrong. A claim exists only where the provider departed from the accepted standard of care, for example, by ignoring a red-flag symptom or not ordering an indicated test, and that departure caused avoidable harm.
What does it cost to hire a diagnosis error lawyer?
Nothing up front. We handle these claims on contingency, so you pay attorney fees only if we win compensation for you, and our firm advances the case expenses.