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About me

Ryan Stumphauzer represents clients in government regulatory enforcement matters, white
collar criminal litigation, internal investigations, whistleblower
suits, compliance counseling, and civil litigation. Prior to founding
O’Quinn Stumphauzer PL, Mr. Stumphauzer served for six years as a
federal prosecutor in the Southern District of Florida, where he
directed over one hundred cases involving allegations of health care
fraud, mail and wire fraud, securities fraud, bank fraud, money
laundering, identity theft, and violations of HIPAA and the health care
anti-kickback statutes.  While at the U.S. Attorney’s
Office, Mr.  Stumphauzer served as the Deputy Chief of the Health Care
Fraud Unit, and was also a founding member of South Florida’s
highly-publicized Medicare Fraud Strike Force, which prosecuted more
than one-third of the health care fraud cases nationwide from 2007
through 2010.  Prior to his service as a federal prosecutor, Mr.
Stumphauzer was a senior accountant at an international accounting firm,
where he performed audit and business advisory services for Fortune 500
corporations.  Mr. Stumphauzer’s financial background, as well as his
extensive experience and leadership in the area of health care fraud and
abuse, makes him a valuable asset to corporations and executives in
regulated industries.


Photos and videos

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Practice areas


  1. Health Care: 34%
    10 years, 120 cases
  2. Federal Regulation: 33%
    10 years
  3. Federal Crime: 33%
    12 years, 250 cases


Payment types:

Check, Credit card

Attorney endorsements

1 total 

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  • John Kirk Ogrosky

    Stumphauzer is one of the best criminal defense attorneys practicing in south Florida. Having worked with him on numerous cases, I witnessed first-hand his extensive knowledge and skill. He really knows how to fight for his clients. He is a great trial advocate - willing to persistently go to the mat to win tough issues. I highly recommend Stumphauzer to anyone who needs a top-shelf criminal defense attorney - particularly in dealing with complex Medicare and Medicaid fraud issues


    John Ogrosky Criminal defense Attorney
    Relationship: Worked together on matter

Contact info

O'Quinn Stumphauzer, P.L.

One SE 3rd Avenue
Suite 1820
Miami, FL, 33131


FLMember in Good Standing200506/21/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Leader in the Field - White Collar and Government InvestigationsChambers & Partners USA Guide2014
AV Preeminent 5.0 out of 5 Peer Review RatedMartindale-Hubbell2014
Top 40 Under 40 Outstanding Lawyers of Miami-Dade CountyCystic Fibrosis Foundation2013
Work experience
TitleCompany nameDuration
Deputy Chief of Economic Crimes, Health Care Fraud CoordinatorUnited States Attorney's Office2004 - 2011
Judicial Law ClerkHonorable Chief District Judge Federico A. Moreno2003 - 2004
Association namePosition nameDuration
Southern District of Florida, Bench & Bar Conference Planning CommitteeCommittee Member2011 - Present
Federal Magistrate Judge Merit Selection Committee (To Fill Judge Stephen T. Brown's Vacancy)Committe Member2011 - Present
Ad Hoc Committee on Attorney Admissions, Peer Review, and Attorney Grievance for the U.S. District Court, Southern District of FloridaCommittee Member2010 - Present
Ad Hoc Committe on Rules and Procedures for the United States District Court, Southern District of FloridaCommittee Member2010 - Present
Judge Merit Selection Committee (Magistrate Judge Patrick White), Southern District of FloridaCommittee Member2010 - Present
Federal Criminal Litigation Committee, Southern District of FloridaCommittee Member2009 - Present
Federal Bar AssociationN/AN/A
American Bar AssociationN/AN/A
Magistrate Selection Committee (Reappoint Magistrate Judge Edwin G. Torres), Southern DIstrict of FloridaCommittee Member2011 - 2011
Legal cases
Case nameOutcome
United States v. Michel Huarte et al.N/A
United States v. Ronnie Bass et al.N/A
United States v. Alyd DazzaN/A
See all legal cases 
School nameMajorDegreeGraduated
Vanderbilt University Law SchoolN/AJD - Juris Doctor2003
John Carroll UniversityAccountancy, BusinessBS - Bachelor of Science1998
Speaking engagements
Conference nameTitleDate
Southern District of Florida Third Biennial Bench & Bar ConferenceCriminal & Civil Health Care Fraud2012
2012 White Collar Crime National InstituteInternal Investigations in the Age of Voluntary Disclosure and Cooperation Agreements2012
FBI Heath Care Fraud TrainingGrand Jury and Trial Testimony for FBI FInancial Analysts in HEalth Care Fraud Cases2011
8th Annual Educational RetreatEnforcement Actions Against Individuals2011
Regional Health Care Fraud Prevention SummitLaw Enforcement Panel2010
Annual Training ConferenceIdentifying Fraud in Home Health Care2010
Medicare Fraud Strike Force TrainingMedicare Fraud Strike Force Prosecutions: Lessons Learned2009
Information Sharing SessionProsecutorial Challenges in Home Health Fraud2009
Annual Training ConferenceInvestigative & Prosecutorial Challenges: Overutilization of Medical Services2008