Photograph of Brian C. Lewis

Brian C. Lewis


Brian C. Lewis is a counsel in the Health Care and Antitrust & Competition groups in Crowell & Moring's Washington, D.C. office.

Brian represents health care entities in complex litigation and antitrust matters. He litigates in federal, state, and arbitral forums, with a particular focus on complex commercial disputes. In his antitrust practice, Brian represents clients in a range of antitrust matters, including civil antitrust litigation, mergers and acquisitions, joint ventures, and issues related to compliance with the Hart-Scott-Rodino Act. Brian’s clients include health insurers, managed care organizations, behavioral health plans, pharmacy benefit management companies, and health systems.

Representative matters:

  • Representing multiple Blue Cross and Blue Shield companies in multi-district litigation class actions asserting nationwide and state antitrust claims.
  • Representing Humana in its proposed $37 billion merger with Aetna and related litigation brought by the U.S. Department of Justice.
  • Representing a health system before the Federal Trade Commission in a proposed merger.
  • Representing corporate officers of a pharmaceutical corporation in connection with a government False Claims Act investigation.
  • Representing a health plan in a putative class action in which a consumer class alleged violation of ERISA in the denial of behavioral health treatment claims.
  • Representing a large health insurer in multiple arbitration proceedings involving a Medicare Advantage dispute.
  • Representing a national pharmacy benefits management company in the creation of a mail and specialty pharmacy joint venture with a major retail pharmacy corporation.
  • Representing a Medicaid managed care organization in complex litigation with a state concerning actuarial soundness of capitation rates, government contracting, and related performance and transition of care issues.

Brian maintains an active pro bono practice, representing criminal defendants through the Maryland Office of the Public Defender pro bono program and also serving as an associate trustee for the Washington Lawyers’ Committee for Civil Rights and Urban Affairs.

Brian received his J.D. from Georgetown University Law Center in 2015, where he represented criminal defendants in D.C. Superior Court through the Criminal Justice Clinic. He also served on the American Criminal Law Review as an editor for the Annual Survey of White Collar Crime. During law school, Brian interned for the fraud sections of the Department of Justice and the U.S. Attorney’s Office for the District of Columbia. He received his B.A. summa cum laude from Sam Houston State University in 2010.


  • Sam Houston State University, B.A. (2010) summa cum laude
  • Georgetown University Law Center, J.D. (2015) cum laude


Admitted to practice: California, District of Columbia

Professional Associations

  • American Health Lawyers Association
  • American Bar Association Antitrust and Health Law Sections
  • Hispanic Bar Association of D.C.

View More

The Best Lawyers in America 2023 Recognizes 54 Crowell & Moring Attorneys, Three Selected as Lawyer of the Year (August 18, 2022)
Firm News / Announcement
The Best Lawyers in America 2022 Recognizes 53 Crowell & Moring Attorneys, One Selected as Lawyer of the Year (August 19, 2021)
Firm News / Announcement
"Court Preliminarily Approves $575 Million Antitrust Settlement Limiting Sutter Health’s Contracting Practices, While Another Grants Partial Summary Judgment for Sutter," Antitrust Law Alert (March 15, 2021). Contacts: Alexis J. Gilman, Brian C. Lewis
Client Alert / Newsletter
Crowell & Moring Elects Nine New Partners and Promotes 18 to Counsel Positions (January 4, 2021)
Firm News / Announcement
The Best Lawyers in America 2021 Recognizes 46 Crowell & Moring Attorneys, Two Selected as Lawyer of the Year (August 20, 2020)
Firm News / Announcement
Crowell & Moring's Antitrust Group Listed as "Highly Recommended" in Global Competition Review's 19th Annual "GCR 100" (February 22, 2019)
Firm News / Announcement
"Health Care Provider Mergers: Navigating Antitrust Issues in the Merger Review Process," AHLA Annual Meeting (June 2018). Authors: Alexis J. Gilman and Brian C. Lewis.
"Antitrust in Health Care Provider Mergers & Acquisition: What In-House and Outside Deal Counsel Should Know," AHLA Business Law & Governance Practice Group Newsletter (May 2018). Authors: Alexis J. Gilman, Brian C. Lewis, Joseph M. Miller and Mary Anne Mason.
"Health Plan Merger Monopsony Enforcement: Recent Considerations," AHLA Newsletter (November 15, 2017). Authors: Joseph M. Miller and Brian C. Lewis.
"Monopsony And Health Plan Mergers: Does Anthem-Cigna Signal A Shift In Policy?," Competition Policy International (CPI) (September 6, 2017). Authors: Joseph M. Miller, and Brian C. Lewis.

For all Highlights, News & Knowledge, please click here to view desktop bio.

Crowell & Moring LLP is an international law firm with offices in the United States, Europe, MENA, and Asia that represents clients in litigation and arbitration, regulatory and policy, and transactional and corporate matters. The firm is internationally recognized for its representation of Fortune 500 companies in high-stakes litigation and government-facing matters, as well as its ongoing commitment to pro bono service and diversity, equity, and inclusion.

View Desktop Site | Mobile Sitemap |

Contact | Subscribe | Terms of Use | Privacy Statement | Alumni

© Crowell & Moring LLP 2022
Attorney advertising - prior results do not guarantee a similar outcome.