Aaron R. Modiano

Of Counsel

2100 Pennsylvania Avenue NW
Suite 350S
Washington, District of Columbia 20037


Aaron is of counsel in the Healthcare and Litigation & Dispute Resolution practices.

Aaron focuses his practice on parity litigation and ERISA claims representing healthcare providers and patients against the largest health insurance companies in the country. Aaron also has experience and expertise in suits against ‘repricing’ and ‘cost-containment’ vendors who egregiously underprice out-of-network healthcare claims. He has also worked on plaintiff’s environmental mass tort and class action litigation, concentrating on helping people harmed by exposure to hazardous soil, water, and air contaminants.

Prior to joining AGG, Aaron worked in private practice where he represented clients in a wide range of civil litigation matters.


  • Represents multiple ER practices as plaintiffs in a civil RICO action in federal court in NY

  • Represents plaintiffs in numerous ERISA class actions in California federal court against Cigna, United and other payers for using Multiplan to systematically underpay outpatient claims

  • Represents multiple facilities in a $40M suit in federal court against BCBS Michigan for illegally underpaying thousands of patient claims


  • The Georgia Washington University School of Law, Juris Doctor
  • Yale University, Bachelor of Arts
  • State of Florida
  • *Not admitted in the District of Columbia. Supervised by a member of the District of Columbia Bar.


  • Best Lawyers in America®: Ones To Watch, Health Care Law, 2024

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