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Attorneys reviewing Arizona medical malpractice cases

On this page
  1. Key Arizona rules
  2. What makes Arizona malpractice law different?
  3. When does the 2-year clock start for Arizona patients?
  4. What expert proof does an Arizona malpractice case need?
  5. Can a patient's share of fault reduce the award?
  6. Which types of errors lead to Arizona malpractice cases?
  7. What should you do now?
  8. Common medical malpractice cases
  9. Attorneys reviewing these cases
  10. Frequently Asked Questions

Key Arizona rules for medical malpractice claims

Medical malpractice filing deadline
2 years
Fault rule
Pure comparative faultYou can recover damages even if you were mostly at fault, but your award is reduced by your percentage of fault. For example, if you were 30% at fault, you could recover 70% of your damages.
Damages caps
Applies to injury claimsThe Arizona Constitution prohibits laws that limit the amount of damages for injury or death.
Claims against a government entity
Shorter notice deadlineA notice of claim must generally be filed within 180 days with a public entity or employee.

What makes Arizona malpractice law different?

Two things stand out: there is no cap on damages, and the expert requirements begin early. The Arizona Constitution prohibits laws that limit the amount of damages for injury or death, so a jury can award what the evidence supports.

That does not make cases easier to win. Arizona requires the patient to show, through a qualified expert, that the provider fell below the accepted standard of care and that this caused harm. A preliminary expert opinion is generally required early in the case, and the expert usually must practice in the same specialty as the provider being sued.

Without a cap, the size of a recovery depends on how well the losses are proven. In a serious case, that often means testimony from treating doctors about future surgeries, a life care plan that prices long-term care, and an economist who measures lost earning ability. Evidence of how the injury changed daily life, such as work, parenting, hobbies and independence, also carries real weight with Arizona juries.

When does the 2-year clock start for Arizona patients?

Generally when the patient knew or reasonably should have known of the injury and its likely cause. That is not always the date of the procedure.

Consider a patient who had surgery in Tucson in March 2025 and suffered ongoing pain. In February 2026 a new doctor finds a nerve injury and tells the patient it likely happened during the surgery. The 2-year deadline may run from that February discovery, not from the surgery date. Insurers often argue the patient should have known sooner, so the safest approach is to act as early as possible. Minors and people who lack capacity may have different rules.

What expert proof does an Arizona malpractice case need?

A qualified expert must explain the standard of care, how it was breached and how the breach caused harm. Arizona sets requirements for who can serve as that expert.

  1. When the claim is filed, the patient generally must certify whether expert testimony is needed.
  2. In most cases, a preliminary expert opinion affidavit must be served early, describing the expert's qualifications and the basis for the claim.
  3. The expert generally must share the defendant's specialty and have recent experience in active practice or teaching.
  4. Missing or weak expert support can lead to dismissal, so the review should be complete early.

Can a patient's share of fault reduce the award?

Yes. Arizona's pure comparative fault rule applies, but a patient's share rarely eliminates a strong claim.

A worked example: a patient with chest pain is sent home from an emergency room without a proper workup and suffers a heart attack the next day. Damages total $900,000. The defense argues the patient waited several hours before calling 911 when symptoms returned, and the jury assigns 10% of the fault to the patient. The patient recovers $810,000. If a cardiology group that read an EKG incorrectly also shared fault, each defendant would generally pay only its own share, so identifying every provider involved matters.

Which types of errors lead to Arizona malpractice cases?

Common categories include:

  • Missed or delayed diagnosis of heart attack, stroke, cancer or sepsis.
  • Surgical mistakes, including injuries to nearby organs or nerves.
  • Medication errors in hospitals, clinics and pharmacies.
  • Labor and delivery errors that cause birth injuries.
  • Heat-related neglect or falls in long-term care, which may overlap with nursing home abuse.

Arizona care ranges from large academic and multi-hospital systems in Phoenix and Tucson to small rural hospitals and Indian Health Service facilities. Claims against federally funded providers follow federal procedures, and claims against state or county facilities require a notice of claim within 180 days.

What should you do now?

Gather records and talk with a lawyer before the deadline narrows.

  1. Request complete records from each provider, including imaging, nursing notes and pharmacy records.
  2. Write down a timeline of symptoms, appointments and what each provider told you.
  3. Keep bills, receipts and lost wage records.
  4. Identify whether any provider was a public, tribal or federally funded facility, since that changes the procedure and the deadlines.
  5. Avoid signing releases or statements from a provider's insurer before getting advice.

If a loved one died, see our Arizona wrongful death page. For other Arizona claims, visit our Arizona injury guide. We offer a free, confidential case review, and you pay no fee unless we win.

Attorneys reviewing Arizona medical malpractice cases

Frequently Asked Questions

What is a preliminary expert opinion affidavit in Arizona?

It is a sworn statement from a qualified expert, generally served early in an Arizona malpractice case, that explains the expert's qualifications, the standard of care, how the provider fell short and how that caused harm. If it is not provided when required, the case can be dismissed. Our team arranges expert review before filing to avoid that risk.

Can I sue an Arizona hospital for a doctor's mistake?

It depends on the doctor's relationship with the hospital. Hospitals are generally responsible for their employees, such as nurses and staff physicians. Many emergency and specialty doctors are independent contractors, but a hospital may still be responsible in some situations, such as when it held the doctor out as its own. Identifying each provider's employer is an early step.

How long do I have to sue a county hospital in Arizona?

Claims against a public entity, including county or state-run facilities, generally require a written notice of claim within 180 days, followed by a lawsuit within 1 year. Those deadlines are much shorter than the 2-year limit for private providers. If you received care at a public facility, contact a lawyer right away.

Will an Arizona jury hear about caps on damages in my case?

No statutory cap applies, because the Arizona Constitution prohibits laws limiting damages for injury or death. The jury decides compensation based on the evidence, including medical costs, lost income and pain and suffering. The judge can review an award for excessiveness, but there is no fixed limit like the caps found in many other states.

General information, not legal advice; laws change — confirm your deadline with an attorney. Last reviewed . Reading this page does not create an attorney-client relationship. Prior results do not guarantee a similar outcome.

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