
California Delayed Diagnosis Attorney
A Skilled Lawyer Fighting for Patients Harmed by Delayed Diagnoses in San Francisco
When healthcare professionals fail to provide timely and accurate evaluations, they reduce the chances of identifying illnesses at an early, more treatable stage. Miscommunication between medical staff, inadequate attention to patient symptoms, or improper use of diagnostic tools can directly lead to these delays. Patients can face complications as diseases progress undetected, resulting in diminished quality of life, more aggressive treatment requirements, and, in severe cases, life-threatening conditions.
If a delayed diagnosis led to your suffering serious harm, we urge you to get in touch with Peterson Injury Law. Our founding attorney, Erik L. Peterson, is a skilled litigator with more than 30 years of legal experience. He has been named among The Best Lawyers in America© and The National Trial Lawyers: Top 100. We can investigate the circumstances of your diagnosis, determine whether negligence was involved, and, if so, help you pursue a medical malpractice claim.
Our goal is to help you hold the responsible parties accountable and secure the just compensation you are entitled to under the law. We are available 24/7 to take your call, and our firm charges no legal fees unless we help you recover damages.
If you experienced health complications because an avoidable error or negligence led to a delay in getting an accurate diagnosis, you shouldn’t wait to explore your legal options. Contact us online or call (415) 630-2913 to schedule a free, no-obligation consultation with our California delayed diagnosis lawyer today.

How Long Do I Have to File a Delayed Diagnosis Claim in California?
In California, you typically have one year from the date you discovered or reasonably should have discovered the delayed diagnosis to file a medical malpractice lawsuit. An overall three-year deadline from the date of the malpractice (in these cases, usually the date you should have been accurately diagnosed but weren’t) also applies. This means that you must bring a claim within a year of discovering a delayed diagnosis harmed you or three years from the date you should have been accurately diagnosed, whichever comes first.
If a minor under the age of 18 suffers harm because of a delayed diagnosis, their parents or legal guardians have three years from the date of the malpractice to start the legal process. If the minor is under the age of six when the delay in diagnosis occurs, their parents or legal guardians have three years from the date of the malpractice or until their child turns eight, whichever comes later.
If you wait too long, you cannot generally pursue a claim or recover compensation, so do not wait to discuss your rights and options with our team at Peterson Injury Law. We can clarify the deadlines that apply to your case.
-
$3.75 Million Anesthesia Error
-
$6.25 Million Anoxic Brain Injury, Anesthesia Error
-
Record-Setting $17 Million Birth Injury Settlement

-
“He couldn't have managed independence to this extent, his current level of physical activity, or the complexity of his recent social interactions 6 months ago. None of it would have happened without ongoing therapeutic support - which has only been possible with the financial settlement.”- Former Client
-
“In my world, you have been very successful in the ways most important, most lasting, most valuable. And I know that [deceased husband] feels this way as well.”- Former Client
-
“His knowledge and attention to detail was stellar, making me feel secure during a difficult case. Unlike most people in life, he was always upfront with me and kept me updated every step of the way, which is truly not what I was expecting from a lawyer. Although it was determined my case could take several years, especially during a pandemic, due to his dedication it was over in only 2yrs and made the process as easy for me as possible. I would absolutely recommend this firm and use him again if I ever need to, although I hope I don't.”- Kristy N.
-
“My husband passed due to medical malpractice and I didn't know what to do or who to call. All I knew was I needed to get him justice. I researched and found Erik Peterson on google and reviewed various reviews on various sites. He was very patient and fought for me and my late husband. Erik told me what to expect ahead of time so I could prepare myself mentally. All in all, I HIGHLY recommend them to anyone who may need legal assistance in personal injury, medical malpractice and wrongful death. They are excellent and I can't say enough good things about them.”- Kiki A.
-
“Very knowledgeable, professional and honest. I needed an attorney for malpractice and from the moment we first had our meeting, he explained everything in terms I could easily understand and very thorough, was always very responsive when I had questions. The case wasn’t an easy one to settle, but Erik never lost hope and kept fighting. Any time I had to get ahold of the staff at the law firm for paperwork, they were always so understanding and very helpful and always got back to me in a timely manner. I would highly recommend Erik Peterson and his law firm. He was an excellent lawyer and truly a genuine person.”- Lila D.
What Types of Negligence Can Lead to a Delayed Diagnosis?
Sometimes, even the most diligent healthcare professionals may face obstacles, such as atypical symptoms or rare diseases, that make immediate and accurate diagnosis challenging. However, when delays arise from lapses in judgment, insufficient attention to detail, or procedural mistakes, they can lead to harmful consequences for patients. In other words, while some delays in reaching an accurate diagnosis are an inherent part of the medical field and stem from the complexity of certain conditions, others result from avoidable errors or negligence.
Types of negligence that can lead to delayed diagnoses include:
- Failure to act on test results. Physicians have a responsibility to carefully review and interpret diagnostic tests like blood work, imaging scans, or biopsies. Negligence occurs when test results are overlooked, misinterpreted, or improperly communicated to the patient. For example, a physician might fail to recognize critical markers of illness in a lab report, leading to a delayed response and worsening of the condition.
- Miscommunication among healthcare teams. Clear and timely communication between healthcare providers is essential in preventing diagnostic delays. Errors can arise when medical teams do not share important information, such as patient history, test results, or ongoing treatments. Fragmented or incomplete communication can result in delayed follow-ups, redundant testing, or missed steps in the diagnostic process.
- Incomplete medical history review. Thoroughly reviewing a patient’s medical and family history is a foundational element of the diagnostic process. Negligence can occur when a healthcare provider fails to ask detailed questions or dismisses pertinent information that could guide their evaluations. For example, overlooking key details about a family history of cancer might result in a significant diagnostic delay.
- Failure to conduct necessary testing. Healthcare providers must pursue appropriate diagnostic tests when symptoms or initial findings suggest the possibility of serious conditions. Negligence may occur if a provider dismisses the need for further testing based on assumptions or a lack of thorough investigation. This can cause serious conditions like infections, cancers, or cardiovascular issues to remain undetected.
- Relying on assumption or bias. Cognitive biases or preconceived notions can impair a physician's diagnostic reasoning. For example, attributing a young patient's chest pain to anxiety without considering cardiac issues could delay the identification of a life-threatening illness. Negligent reliance on assumptions instead of evidence-based inquiry can jeopardize patient care.
- Diagnostic equipment failures. While human error is a leading cause of delayed diagnoses, reliance on malfunctioning or outdated diagnostic equipment also contributes to this issue. If a healthcare provider neglects to verify the accuracy of equipment or fails to pursue additional means of confirming a diagnosis, it may result in harmful delays for the patient.

Types of Compensation Available in California Delayed Diagnosis Cases
In a California delayed diagnosis case, you can recover both economic and non-economic damages, which address distinct aspects of the harm you have suffered. Economic damages cover measurable financial losses directly resulting from the delayed diagnosis. These may include medical expenses like hospital bills, ongoing treatment costs, prescription medications, and rehabilitation services. Lost income from time off work and any reduced earning capacity due to long-term effects also fall under this category.
Non-economic damages compensate you for less tangible types of harms that impact your quality of life. These can include pain and suffering, emotional distress, loss of enjoyment of life, and loss of companionship or consortium. Unlike economic damages, non-economic damages are not easily quantified, as they involve the personal and emotional toll the delayed diagnosis has inflicted upon you.
Our California delayed diagnosis lawyer can fight to get you maximum compensation for both economic and non-economic damages. We understand the types of evidence needed to establish these damages and are not afraid to go to court to get you what you deserve.
We also handle medical malpractice claims involving failures to diagnose and misdiagnoses. Call (415) 630-2913 or contact us online today.

