Emergency Medicine Expert Witness
Jason Koob, MD — board-certified emergency physician who began his career as an analyst at Cornerstone Research, a litigation consulting firm. Available to plaintiff and defense counsel nationwide.
- Board-Certified (ABEM)
- Practicing Community ED Physician
- Full-Time Practice Since 2014
- Formerly of Cornerstone Research
Board-Certified
Diplomate of the American Board of Emergency Medicine, with active ACEP and AAEM membership.
In the ED Every Week
Full-time community emergency department practice since 2014, across the full range of emergency presentations. Opinions informed by what emergency medicine actually looks like on shift, not by a recollection of it.
The Same Review, Either Side
Available to plaintiff and defense counsel alike. Independent review and candid opinions — including when they don't favor the retaining party.
Case expertise
- Sepsis & Serious Infection
- Chest Pain & ACS
- Stroke & Thrombolysis Decisions
- Aortic Dissection
- Pulmonary Embolism
- EMTALA & Interfacility Transfer
- Airway Management
- Trauma Resuscitation
- Appendicitis & Abdominal Emergencies
- Ectopic Pregnancy
- Meningitis
- Discharge & Follow-Up
How it works
Send your case.
A brief conflict check, then records via secure transfer.
Rigorous review.
An independent written opinion grounded in the medical record and the standard of care that applied at the time.
Clear testimony.
Deposition and trial testimony that translates medicine for judges and juries.
ABEM Board-Certified · ACEP · AAEM · Licensed in California
Reviewing cases nationwide.
Most inquiries receive a response within one business day.