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Medical malpractice cases are among the most complex and hard-fought legal claims in the United States. Hospitals, doctors, and insurance companies employ teams of lawyers whose sole job is to deny responsibility. For injured patients and grieving families, the burden of proof can feel overwhelming.
But the law does provide a path to accountability. To succeed, a malpractice case must establish that the provider’s care fell below accepted medical standards, that this failure caused harm, and that the harm resulted in measurable damages.
At Snyder & Wenner, P.C., we have spent decades helping Arizona families navigate these challenges. Understanding the process of how malpractice is proven is the first step toward justice.
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To prove malpractice in Arizona (and across the U.S.), four legal elements must be established. These elements form the foundation of every successful claim.
A plaintiff must first show that the healthcare provider owed them a duty of care. This is typically straightforward: once a doctor-patient relationship is established, the provider is legally and ethically obligated to deliver treatment consistent with the medical profession’s accepted standards.
For example, when you visit a primary care physician, undergo surgery at a hospital, or receive treatment at an urgent care or emergency department, those providers owe you the same duty as any reasonably competent provider in the same circumstances.
Next, it must be shown that the provider breached that duty by failing to meet the accepted medical standard of care. This doesn’t mean the provider had to be perfect — medicine always carries risks. Instead, the law asks whether another reasonably competent doctor, nurse, or hospital would have acted differently.
Examples of breach include: failing to order an EKG for chest pain, misreading an X-ray that clearly showed a fracture, prescribing the wrong medication, or ignoring symptoms of stroke. Each of these actions (or failures to act) falls below accepted standards.
Even if a provider acted negligently, malpractice is not proven unless the negligence actually was a cause of harm. This is often the most contested part of a case. Hospitals frequently argue that the patient’s underlying condition — not the provider’s error— was the true cause of the outcome.
Attorneys must show a clear connection between the breach of duty and the injury. For example, if a doctor fails to diagnose an infection, and the infection spreads causing sepsis or death, the causation is direct. But if a patient already had terminal cancer, proving that a missed diagnosis caused additional harm may be more complex.
Finally, malpractice must result in damages — meaning measurable harm suffered by the patient or their family. Damages may include additional medical expenses, lost wages, long-term disability, pain and suffering, or wrongful death. Without damages, even negligent care may not qualify as malpractice in a legal sense.
Because of this, expert witnesses are essential. Arizona law (A.R.S. § 12-2603) requires malpractice claims to be supported by an affidavit from a qualified medical expert. Without this, a case cannot proceed.
Expert testimony is the backbone of malpractice litigation. Experts explain what the standard of care was, how it was breached, and how that breach caused harm. They review records, interpret test results, and testify in court.
For example, a cardiologist might testify that a patient with chest pain should have received immediate cardiac testing. A neurologist may explain that stroke symptoms were ignored. An infectious disease expert could show that failure to sterilize equipment caused infection. An emergency medicine doctor can explain what the emergency provider should have done to diagnose an infection.
At Snyder & Wenner, P.C., we maintain a national network of highly respected experts. These specialists lend credibility to our cases and help juries understand the technical aspects of medicine. We do not just look for experts who will support our case. That is what the defendant doctors or hospitals do because they hope to trick the jury. We look for an authentically objective review of the records from a qualified expert so we can be positive we are on the correct side of the medicine.
While medical malpractice cases are difficult, they remain essential for accountability. It is impossible to say what statistics across the board are because every case is very different. Winning cases typically have strong expert testimony and clear evidence of negligence. Average payouts vary widely, but cases involving catastrophic injury or death often result in multi-million-dollar verdicts, often exceeding $5 million to $10 million as a minimum. Numbers only go up from there depending on the injuries. According to the National Practitioner Data Bank, the most common malpractice claims involve misdiagnosis (34%), surgical errors (24%), and treatment errors (19%).
These statistics highlight why choosing the right law firm is so important.
Under A.R.S. § 12-2603, plaintiffs must file an affidavit from a qualified medical expert attesting that negligence likely occurred.
Claims must be filed within two years of the injury or its discovery (A.R.S. § 12-542). Exceptions apply for minors and certain cases of delayed discovery.
If the patient is found partially at fault (for example, not following instructions), damages may be reduced proportionally.
These hurdles mean cases must be meticulously prepared from the very beginning.
When malpractice is successfully proven, patients and families may recover damages for both economic and non-economic losses. Economic damages include medical costs, lost wages, and the cost of ongoing care. Non-economic damages cover pain, suffering, emotional trauma, and loss of quality of life. In wrongful death cases, families may also receive compensation for funeral costs and loss of companionship.
In rare cases where conduct was reckless or intentional, punitive damages may be awarded. These damages are not about compensation but about punishing providers and deterring future negligence.
Proving malpractice is not something every law firm can do. It requires resources, medical expertise, trial experience, and an unwavering commitment to justice. Snyder & Wenner, P.C. has been representing malpractice victims in Arizona for more than 40 years.
Our firm has obtained the largest malpractice verdict in Arizona history, as well as dozens of record-setting settlements in Arizona. We are recognized nationally for our expertise and are among the few firms in the state with the resources to take on hospitals and insurers head-to-head.
We prepare every case as if it will go to trial, ensuring no corner is cut and no evidence overlooked. Our attorneys work with top medical experts across the country, from cardiologists and neurologists to surgeons and anesthesiologists, building the strongest cases possible.
Most importantly, we put our clients first. We know malpractice cases are not just about money — they are about accountability, justice, and ensuring no family suffers the same fate again.
Proving medical malpractice is never easy. It requires careful investigation, expert testimony, and a law firm with the skill and resources to stand up to hospitals and insurers. But when successful, these cases provide justice for families, accountability for providers, and safer care for future patients.
At Snyder & Wenner, P.C., we have spent decades proving malpractice claims for Arizona families. Our mission is simple: to uncover the truth, demand accountability, and secure the compensation our clients need to rebuild their lives.
Every patient deserves safe, competent medical care. When negligence causes preventable harm, we are here to help prove it.
Generally two years from the date of injury or discovery, though exceptions apply.
