Stand Up to Medical Negligence With Experienced Advocates
Recognized Leaders in the Legal Field
  • Best Lawyers White
  • Best Lawyers
  • Super Lawyers 20 years
  • Top 100 Trial Lawyers
  • Million Dollar Advocates Forum

    Delayed diagnoses can have significant impacts on patient health, treatment options, and recovery outcomes. At Peterson Injury Law, we understand the gravity of these situations. Our delayed diagnosis lawyers are prepared to meticulously review your case to identify when and how the delay occurred, as well as seek redress and compensation on your behalf. We understand that misdiagnoses and delayed diagnoses can exacerbate medical conditions, leading to further complications, diminished quality of life, and, in the worst cases, death. Our delayed diagnosis attorneys are here to assist you in navigating these complex scenarios, all while aiming to secure the justice and compensation you deserve.

    If you believe your health has been compromised due to a delayed diagnosis, contact Peterson Injury Law at (415) 630-2913 to learn how we can help.

    Los Angeles Delayed Diagnosis
    Call for More Information Today!
    415-630-2913
    Client Reviews
    • A
      "Top-Notch Experience with Attorney Erik Peterson"
      They handled our case with great care, making the process easy and seamless for us.
      Allen McQueen
    • J
      "Compassion and Integrity"
      Erik took us through a bad situation with compassion and integrity.
      Jan P
    • N
      "Super friendly and helpful"
      He was always available to answer any of my questions about my case.
      Nat Block
    • P
      "They were incredibly helpful."
      They consistently helped me through the unfamiliar and uncertain legal processes, which were all new to me.
      Peter McCown
    • J
      "His honesty and professionalism gave us confidence."
      His honesty and professionalism gave us so much confidence during a stressful time.
      Joyce Diaz
    • Q
      "Thank you for all your hard work"
      I am so very grateful to my lawyer, Erik Peterson, and his team for his unwavering support, dedication, and commitment.
      Quia Kaufman
    • a
      "Now our son will have his needs met"
      Erik was very communicative and detailed in explaining how all the legal things worked and how long things took.
      adrianbar87
    • M
      "Erik and his team are superb."
      If you are in need of his attorney services, it is likely, like myself, that you are experiencing one of the most traumatic and painful times of your life. Of course, you want an excellent lawyer—and he is it.
      Margaret Clausen
    • J
      "An Exceptional Experience During a Difficult Time"
      Erik seamlessly took on our medical malpractice case with professionalism, compassion, and deep expertise.
      Jennifer Billeci
    Top-Notch Experience with Attorney Erik Peterson
    Our experience with attorney Erik Peterson and his legal assistant, Kate, was top notch! They handled our case with great care, making the process easy and seamless for us. They were on top of every detail from beginning to end, and we were always at ease knowing they were extremely knowledgeable, honest, and thorough. We were quite pleased with the results of our case, which was entirely due to their efforts. We highly recommend the Peterson Injury Law group.
    Allen McQueen
    Compassion and Integrity
    Erik took us through a bad situation with compassion and integrity. He is honest and always ready to explain what’s happening. Kate, his paralegal, was helpful with information or support. I’m happy to recommend Erik Peterson Injury Law to anyone who needs help navigating a legal process.
    Jan P
    Super friendly and helpful
    Eric was super friendly and helpful. He was always available to answer any of my questions about my case.
    Nat Block
    They were incredibly helpful.
    Erik and his team were incredibly helpful. They consistently helped me through the unfamiliar and uncertain legal processes, which were all new to me. I trusted Erik always had my best interests in mind and was fighting on my behalf. I deeply appreciate all they did for me and my family.
    Peter McCown
    His honesty and professionalism gave us confidence.
    Erik and his paralegal, Kate, were incredible throughout our case. Erik is an amazing attorney; he was open with us from the very beginning, attentive, and always made sure we understood every step of the process. His honesty and professionalism gave us so much confidence during a stressful time. He helped us get to the finish line and close a very difficult chapter in our lives. I truly appreciate everything they did for us and couldn’t be more thankful. Highly recommend this team for anyone needing strong, reliable legal representation.
    Joyce Diaz
    Thank you for all your hard work
    I am so very grateful to my lawyer, Erik Peterson, and his team for his unwavering support, dedication, and commitment. Thank you for all your hard work leading us to a victorious outcome in court!
    Quia Kaufman
    Now our son will have his needs met
    My wife and I are forever grateful to Erik and his team for putting the effort and care for our son and his needs. We chose Erik over another lawyer because he took the time to FaceTime with us and speak to us on a personal level, which made us feel safe and heard. Throughout the process, Erik was very communicative and detailed in explaining how all the legal things worked and how long things took. He was always truthful and honest, but also caring. At the end, Erik and his team were able to help us, and now our son will have his needs met and a more comfortable life. Thank you.
    adrianbar87
    Erik and his team are superb.
    Thank you, Erik, for winning our case! Erik and his team are superb. If you are in need of his attorney services, it is likely, like myself, that you are experiencing one of the most traumatic and painful times of your life. Of course, you want an excellent lawyer—and he is it. The bonus: he is also a genuinely real and kind human being. I am so grateful to him and his team.
    Margaret Clausen
    An Exceptional Experience During a Difficult Time
    Working with Erik Peterson was an exceptional experience during one of the most difficult times in our lives. As we faced shock and a maze of medical decisions, Erik seamlessly took on our medical malpractice case with professionalism, compassion, and deep expertise. From our very first conversation, it was clear that Erik had both the knowledge and the sensitivity to guide us through the process with integrity. Erik ultimately secured a settlement that protected our financial future and gave us peace of mind to focus our energy on healing and recovery. We are profoundly grateful for his guidance and advocacy, and we cannot recommend Erik and his team highly enough.
    Jennifer Billeci
    Our Results
    • $3.75 Million Anesthesia Error
      During an outpatient pain management procedure my client’s blood oxygenation fell to zero causing an anoxic brain injury ...
    • $6.25 Million Anoxic Brain Injury, Anesthesia Error
      During labor the client’s epidural went “high” causing her to stop breathing and resulted in an anoxic brain injury.
    • $17 Million Birth Injury Settlement
      secured in 2019 over brain damage resulting from failure to treat a routine infection in pregnancy. This is the largest ...
    • $5.5 Million Birth Injury, Brain Injury
      A NICU nurse perforated the infant client’s heart while inserting a PICC line leading to brain injury.
    • $3 Million Emergency Room Error
      An ER physician did not timely intubate a patient in distress leading to an anoxic brain injury.
    • $3 Million Emergency Room Negligence Resulting In Brain Injury
      An emergency room physician failed to timely intubate a patient that resulted in an anoxic brain injury.
    $3.75 Million Anesthesia Error

    During an outpatient pain management procedure my client’s blood oxygenation fell to zero causing an anoxic brain injury.

    $6.25 Million Anoxic Brain Injury, Anesthesia Error
    During labor the client’s epidural went “high” causing her to stop breathing and resulted in an anoxic brain injury.
    Record-Setting $17 Million Birth Injury Settlement
    secured in 2019 over brain damage resulting from failure to treat a routine infection in pregnancy. This is the largest medical malpractice recovery in California history (present value).
    $5.5 Million Birth Injury, Brain Injury

    A NICU nurse perforated the infant client’s heart while inserting a PICC line leading to brain injury.

    $3 Million Emergency Room Error

    An ER physician did not timely intubate a patient in distress leading to an anoxic brain injury.

    $3 Million Emergency Room Negligence Resulting In Brain Injury
    An emergency room physician failed to timely intubate a patient that resulted in an anoxic brain injury.
    Why Choose Peterson Injury Law

    At Peterson Injury Law, we focus on serious medical malpractice and catastrophic injury cases where the outcome truly matters. With decades of experience and a deliberate low-volume approach, we’re able to dig deeply into the medicine, build powerful evidence, and fight for the full justice our clients deserve.

    Why Choose Us:

    • Over $200 million recovered, including record-setting verdicts and settlements
    • More than 30 years of focused medical malpractice and serious injury experience
    • Clinical insight from a Registered Nurse leading our case intake and evaluation
    • Direct, partner-level involvement and carefully limited caseloads
    • Proven experience against major medical systems and in Kaiser arbitration
    • No upfront fees—free consultations and contingency-based representation
    • No Fees Unless We Win Your Med Mal Case

      Free consults and contingency fees give you top-tier advocacy.

    • Deep Medical Insight From Day One

      RN-led intake and leading experts build a strong medical foundation.

    • Intensive Focus On Catastrophic Med Mal Cases

      We take fewer cases so we can fully investigate and maximize value.

    • Record-Setting Medical Malpractice Results

      Over $200M recovered, including California’s largest med mal case.

    Meet the Team at Peterson Injury Law

    At Peterson Injury Law, our team is built for the most serious medical malpractice and catastrophic injury cases. With more than 30 years of experience and over $200 million recovered, we bring seasoned trial skill, deep medical knowledge, and the resources needed to take on hospitals, corporations, and systems like Kaiser. We intentionally limit our caseload so every matter receives intensive investigation, partner-level attention, and thoughtful, strategic preparation.

    From the first call, our Registered Nurse–led intake helps us understand the medicine, identify key issues, and quickly determine how we can help. Throughout the process, we explain complex medical and legal concepts in plain language, stay responsive, and shoulder the legal and financial pressures so families can focus on healing. When the stakes are highest, our team is prepared to pursue full justice and meaningful, life-changing results.

    Common Questions
    • Can I file a lawsuit for delayed diagnosis?
      Yes, if you have suffered harm due to a delayed diagnosis, you may have grounds to file a medical malpractice lawsuit. The case would need to demonstrate that the delay resulted from negligence and directly caused harm.
    • What compensation is available for delayed diagnosis?
      Compensation in a delayed diagnosis case may include medical expenses, lost wages, pain and suffering, and other damages related to the harm caused by the delay. The specifics depend on the individual case and jurisdiction.
    • How does delayed diagnosis affect patients?
      Delayed diagnosis can lead to progression of the condition, causing deterioration in the patient’s health. This could result in more intensive treatments, increased medical costs, prolonged recovery time, or in some cases, reduced chances of survival.
    • What is the statute of limitations for filing?
      The statute of limitations for filing a lawsuit varies by jurisdiction. It's important to consult with a legal professional to understand the specific time limits applicable to your case, as missing this deadline can prevent you from seeking compensation.
    We’re Here to Help
    • By submitting, you agree to receive text messages from Peterson Injury Law at the number provided, including those related to your inquiry, follow-ups, and review requests, via automated technology. Consent is not a condition of purchase. Msg & data rates may apply. Msg frequency may vary. Reply STOP to cancel or HELP for assistance. Acceptable Use Policy