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About me

Denis C. Mitchell is an experienced trial attorney and focuses his practice on representing individuals and families who have suffered life-altering injuries or who have lost love ones. He has obtained numerous multi-million dollar recoveries for his clients and has tried cases before multiple state and federal courts in the region.  Mr. Mitchell's fellow plaintiffs’ lawyers recognized him as D.C.’s Trial Lawyer of the Year in 2014.  He has also been recognized by Best Lawyers® and SuperLawyers® as a leading practitioner in medical negligence since 2011.

Mr. Mitchell has held leadership positions in several organizations, including President of the Trial Lawyers Association of Metropolitan Washington, D.C. and Chair of the D.C. Bar Tort Law Section. He has written for quarterly publications and made presentations on important civil cases handed down by state and federal courts in the District of Columbia.  His is also an Adjunct Professor in Trial Advocacy at the Georgetown University Law Center.

Mr. Mitchell became fluent in Spanish after spending a year teaching and studying in the Economics Department at the University of Navarre in Pamplona, Spain.

Prior to joining Stein Mitchell Cipollone Beato & Missner LLP, Mr. Mitchell was a litigation associate at Piper Rudnick, LLP (now DLA Piper) in Baltimore, Maryland, where he litigated patent and trademark cases and commercial disputes.


Languages spoken: Spanish, English

Contact info

1100 Connecticut Ave Nw
Suite 1100
Washington, DC, 20036

Practice areas


  1. Medical Malpractice: 60%
    14 years
  2. Personal Injury: 40%



Contingent (25-40%)

Attorney endorsements

1 total 

Are you an attorney? Endorse this lawyer

  • Michael Abelson

    Denis Mitchell is one sharp attorney. Denis and I have worked on several cases together. He is always well prepared and focused on the issues that must be presented. Denis is able to comfortably speak to fellow attorneys and judges who always look forward to his ability to simplify complex legal issues for them. His competitive drive, combined with his personable manner, smile and handshake, make him a winner. I most highly endorse Denis Mitchell for any assignment he chooses to accept.


    Michael Abelson Personal injury Attorney
    Relationship: Worked together on matter


DCActive 200307/06/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Trial Lawyer of the YearTrial Lawyers Association of Metropolitan Washington, D.C.2014
Top Rated Medical Malpractice Attorney in Washington, D.C.SuperLawyers2012
Best LawyerBest Lawyers in America2011
Order of the CoifUniversity of Maryland, School of Law2000
Law ReviewUniversity of Maryland, School of Law1998
Work experience
TitleCompany nameDuration
Adjunct ProfessorGeorgetown Univeristy School of Law2007 - Present
PartnerStein Mitchell Cipollone Beato & Missner LLP2002 - Present
AssociatePiper Rudnick2000 - 2002
Association namePosition nameDuration
The CounsellorsMember2015 - Present
District of Columbia BarCo-chair - Tort Law Steering Committee2009 - Present
Trial Lawyers Association of Metropolitan Washington, D.C.Membership Committee Co-Chair2007 - Present
Maryland Association for JusticeAmicus Committee2006 - Present
Trial Lawyers Association of Metropolitan Washington, D.C., Amicus Curiae CommitteeBoard of Governors2005 - Present
Trial Lawyers Association of Metropolitan Washington, D.C.Education Committee Co-Chair2008 - 2009
Publication nameTitleDate
Trial (American Association for Justice)Hospital Based Infections2008
Trial ReporterRules of the Road For Bicyclists and Pedestrians2007
School nameMajorDegreeGraduated
University of Maryland School of LawN/AJD - Juris Doctor2000
University of VirginiaHistoryBA - Bachelor of Arts1996
Speaking engagements
Conference nameTitleDate
D.C. Bar CLE2015 Revisions to the D.C. Superior Court Rules - Experts and Other Noteworthy Changes2016
Trial Lawyers Association of Metropolitan Washington, D.C.Primer on Changes to Superior Court Rules2015
DC-TLA Dinner Meetings (several times yearly)Recent Developments in D.C. LawN/A