Derrick L. Walker 5YEARSAWARDED

Derrick L. Walker

recognized lawyers icon Recognized in Best Lawyers since 2017
Awarded Practice Areas
Medical Malpractice Law - Plaintiffs Personal Injury Litigation - Plaintiffs
*Named the "Lawyer of the Year" in this practice area in the 2026 edition in Richmond.
Lawyer of the Year Badge - 2026 - Medical Malpractice Law - Plaintiffs
Derrick L. Walker
Derrick L. Walker
Richmond, VA
Works at
Allen, Allen, Allen & Allen PC

7 Best Lawyers awards

Allen, Allen, Allen & Allen PC logo

Biography

Derrick Walker is a nationally recognized trial lawyer with a reputation as a courtroom powerhouse. Over the span of his 25-year career Derrick has achieved outstanding results for his clients in a wide array of personal injury matters, including multi-million dollar awards in cases involving wrongful death, tractor-trailer collisions, traumatic brain injuries, nursing homes, and medical malpractice.

Driven by an unwavering commitment to leveling the legal playing field for the injured, Derrick passionately advocates for his clients, often navigating ‘David vs. Goliath’ battles against insurance and corporate giants. Since the start of his career he has been known for securing important outcomes both at the negotiation table and in the courtroom.

Dedicated to providing a platform for civil justice and preserving the right to trial by jury motivates Derrick to give back to his legal community. He is actively involved in the Board of Governors for the Virginia Trial Lawyers Association and the American Association for Justice. Derrick is a frequent speaker on ethics and trial techniques. He attended the College of William & Mary graduating with a B.A. in Government and received his J.D. from the T. C. Williams School of Law at the University of Richmond where he was the recipient of the International Academy of Trial Lawyers Student Advocate Award.

Works at
Allen, Allen, Allen & Allen PC

7 Best Lawyers awards

Allen, Allen, Allen & Allen PC logo

Locations

Languages

  • English

Education

  • University of Richmond, J.D., graduated 2000

Bar Admissions

  • Virginia, 2001

Affiliations

  • American Association for Justice - Virginia Governor to the AAJ Board of Governors
  • Boyd Graves Conference - Member
  • Virginia Trial Lawyers Association - Governor-at-Large

Client Testimonials

Awards & Focus

Lawyer of the Year Badge - 2026 - Medical Malpractice Law - Plaintiffs
Named "Lawyer of the Year" by Best Lawyers® for:
  • Medical Malpractice Law - Plaintiffs, Richmond (2026)
Recognized in The Best Lawyers in America® 2026 for work in:
  • Medical Malpractice Law - Plaintiffs
  • Personal Injury Litigation - Plaintiffs

Additional Information

Spinning circle Big letter B

Case History

Cases
  • $6.5 Million
Tractor-Trailer Collision
  • $5.5 Million
Medical Malpractice Wrongful Death Verdict
The plaintiff’s decedent, a 48-year-old man, visited his family physician with complaints of shortness of breath, dizziness, chest pain, and a dry mouth.
His vitals were obtained, and the results revealed that he was experiencing mild tachycardia, or an increased heart rate, at over 100 beats per minute. He had an oxygen saturation of 94% and blood pressure readings of 92/50 and 130/80.
This doctor’s visit took place approximately three and a half months post-op from the decedent’s thoracic decompression surgery. Following this surgery, he experienced significant mobility limitations, relying on a wheelchair and a walker for mobility. Following a physical examination, the defendant attributed the decedent’s shortness of breath to deconditioning, his chest pain to GERD (gastroesophageal reflux disease), and his dizziness to possible orthostatic hypotension.
Prior to discharging the decedent, the defendant ordered several lab studies, including a D-Dimer test. This is used almost exclusively to evaluate for acute pulmonary embolism. The D-Dimer test was ordered on a non-stat (non-urgent) basis and was scheduled to be reported the following day.
Our plaintiff’s decedent was discharged from the defendant’s office. Later that evening, he collapsed suddenly. Despite resuscitation efforts initiated by EMS, he died – approximately 6 hours after his arrival at the defendant’s clinic. The following day the D-Dimer result was reported and was severely elevated – about 30 times higher than normal. There was no autopsy.
At trial, experts on the plaintiff’s side testified that the defendant violated the standard of care. They noted that the defendant failed to develop an appropriate level of suspicion for acute pulmonary embolism based on the patient’s risk factors, presenting signs, and symptoms. The plaintiff’s experts also testified that the standard of care required the immediate transfer of the plaintiff’s decedent to the nearest emergency room so that the D-Dimer could be completed on a stat (urgent) basis, along with a chest CT-A scan.
The plaintiff’s causation experts testified that had the decedent been timely transferred to the emergency department, he would have received telemetry and other monitoring. Anticoagulants would also have been administered, to keep the existing clot from propagating. The experts also testified that the clinic’s support measures were insufficient to maintain the plaintiff’s hemodynamic stability. Thrombolytic medication could have been initiated, and it would have saved the decedent’s life. Finally, they testified that while a D-Dimer is a non-specific test and an elevated D-Dimer does not necessarily confirm a pulmonary embolism, a D-Dimer elevated to such a high degree is more likely due to pulmonary embolism.
The defendant’s standard of care experts testified that the plaintiff’s decedent did not meet the profile of a patient experiencing an acute pulmonary embolism. They explained that they came to this decision primarily because the decedent’s chest pain was non-pleuritic (sharp and painful) in nature, and his vitals were historically consistent with those gathered at other medical visits.
The defendant’s causation experts testified that the plaintiff’s decedent’s death was more likely the result of a sudden cardiac death. They claimed that this death was unrelated to his earlier presentation and not a pulmonary embolism. Those experts also testified that the plaintiff’s decedent had been evaluated for pulmonary embolism a few months prior to his death after a sudden onset of chest pain. They testified that although that evaluation included an elevated D-Dimer, a chest CT-A ruled out the presence of emboli in the lungs.
After four days of evidence, the jury deliberated for just over an hour before returning a verdict in favor of the plaintiff. Prior to closing arguments, the parties entered into a high-low agreement.
  • $4.5 Million
Bicyclist struck by a commercial vehicle
  • $3.25 Million
A head on tractor trailer collision
This case arose from a tractor-trailer collision in July of 2020. The defendant was headed southbound on I-81 when he lost control of his 18-wheeler. He crossed a grassy median, then entered the northbound travel lanes, striking the plaintiff’s vehicle.
The plaintiff sustained significant physical injuries, including:
  • Multiple nasal fractures
  • A facial degloving injury
  • A traumatic brain injury resulting in post-concussive headaches, bilateral tinnitus, and a visual disturbance of the left eye
The plaintiff’s brain injury medical experts described the head injury as mild to moderate, with permanent cognitive deficits and other brain injury-related complications. Those same experts were in agreement that the plaintiff, also a commercial driver, would be unable to return to commercial driving or any other form of competitive employment.
The defense experts contested the traumatic brain injury diagnosis. They argued that the plaintiff did not lose consciousness in the crash, and had a normal Glasgow Coma Score – therefore his injury did not meet the diagnostic criteria for brain injury. They also pointed to the plaintiff’s forensic neuropsychological testing results, which did not demonstrate any cognitive deficits attributable to the crash. The defense also opined that the plaintiff had fully recovered from his crash-related injuries and was completely capable of resuming employment as a commercial driver without limitation.
The plaintiff incurred approximately $200,000 in past medical expenses and projected future medical expenses of approximately $786,000.
The parties mediated the case earlier this month and reached a settlement in the amount of $3,250,000.

Your browser is not fully compatible with our automatic printer friendly formatting.

Please use the print button to print this profile page.

Spinning circle Big letter B