Houman Ehsan

O'Melveny & Myers LLP

Houman Ehsan holds a JD, MD, and an MBA, a combination that allows him to focus his practice on the nexus of medicine, business, and the law. As an attorney–physician, he provides clients with legal and factual analysis of complex medical and scientific issues arising from products liability and healthcare litigation defense, healthcare due diligence, and healthcare financial arrangements.

He has extensive experience working with expert witnesses in both products liability and general healthcare litigation settings. And within O’Melveny, Houman himself is recognized as an in-house expert, called on to translate the intricacies of the healthcare and life-sciences industries into practical advice for fellow litigators.

He counsels clients ranging from biopharmaceutical, to managed health care, to technology companies through deposition and litigation strategies.


  • Leading the identification, selection, and preparation of dozens of medical and scientific experts for pharmaceutical clients facing mass torts in state and federal courts
  • Coordinating preparation, deposition, and motion practice challenging opposing experts’ opinions under California and federal law on behalf of pharmaceutical clients
  • Providing a tutorial to the bench on the key scientific concepts underlying mass torts cases in both state and federal courts during various “Science Day” presentations
  • Providing case-specific causation analysis for multiple major pharmaceutical companies in products liability actions in numerous federal and state courts
  • Performing internal investigation and risk assessment on behalf of large healthcare providers
  • Performing healthcare due diligence of pharmaceutical, biotechnology, and medical device companies on behalf of both lenders and potential buyers (domestic and foreign)
  • Analyzing medical literature and patient charts for healthcare clients seeking risk analysis under federal anti-kickback statute
  • Providing analysis of expert opinions under Daubert for a major managed-care company in the In re Managed Care Litigation in federal court
  • Analyzing coding and billing practices of physicians and providing critical analysis of expert witnesses on CPT (Current Procedural Terminology) coding
  • Investigating facts and developing analysis to defend a medical device company against multiple tort claims, including claims asserted under California’s Unfair Competition Law
  • Analyzing and identifying factual basis for defeating RICO claims asserted against healthcare clients


  • Farsi

Bar Admission:

  • California


  • University of Southern California, J.D.: Order of the Coif
  • University of Southern California, Marshall School of Business, M.B.A.: Beta Gamma Sigma
  • University of Washington Affiliated Hospitals, post-graduate training in Internal Medicine
  • University of California at San Diego, M.D.
  • University of California at Berkeley, B.A., Molecular and Cell Biology/Neurobiology: Phi Beta Kappa


Rate : $$$

What types of cases Attorney Houman Ehsan & O'Melveny & Myers LLP can handle?
O'Melveny & Myers LLP can handle cases related to laws concerning Consumer Rights & Protection, Class Action, Health Care. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is O'Melveny & Myers LLP located?
O'Melveny & Myers LLP is located at 400 S Hope St #18th+floor, Los Angeles, CA 90071, USA. You can reach out to O'Melveny & Myers LLP using their phone line 213-430-6326. You can also check their website omm.com or email them at [email protected].
How much would it cost to hire O'Melveny & Myers LLP?
Houman Ehsan lawyer charges are specific to each case. However, they work with contingency fees and its ranges from $$ to $$$. They also provide free consultation [and no obligation quotes] if you are interested to hire.
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O'Melveny & Myers LLP
South Hope Street 400
Los Angeles 90071 CA US
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