Robert F. Leibenluft

Robert F. Leibenluft

Senior Counsel
Washington, D.C.

Email [email protected]​

Phone +1 202 637 5789

Fax +1 202 637 5910

Practice groupGlobal Regulatory

Sources comment: "He is absolutely terrific and a spectacular antitrust lawyer." Chambers USA, 2018

Bob Leibenluft's antitrust practice is unusual in that it focuses on only one industry – health care and life sciences – yet it spans all industry sectors, including providers, payers, and drug and device manufacturers. He brings over 35 years of experience, including heading the FTC Health Care Division, to his representation of clients in counseling, investigations, transactions, and litigation matters.

Starting at the firm in 1981 as a health regulatory lawyer, Bob became a nationally recognized lawyer on Medicare issues. His deep understanding of the industry was a reason he was asked to lead the FTC Health Care Division in the mid-1990s, where he supervised drafting of the FTC/DOJ Health Policy Statements, which first addressed clinical integration, and led investigations of hospital mergers and physician networks.

On a pro bono basis, Bob has led a 10-year review of the D.C. government's response to HIV/AIDS, advised the government of Liberia on a new public health law, and provided antitrust advice to the CEO Roundtable on Cancer.

Chambers USA describes Bob as "renowned for his expertise in health care antitrust and is singled out by a source as someone who really knows how the system works" and who is hailed by peers as a "terrific health care antitrust lawyer."

Bob is an inaugural fellow and former vice president of the American Health Lawyers Association. He is a former Chair of the ABA Antitrust Section's Health and Pharmaceuticals Committee, Joint Conduct Committee, and State Enforcement Committee. Bob also served as Chair of the Board of Directors of HCI3, the parent of Prometheus Payment, and Bridges-to-Excellence. He teaches the course Antitrust in the Health Care Sector at George Washington School of Law, where he is an adjunct professor.

Awards and recognitions


Antitrust (District of Columbia)
Chambers USA


Healthcare: Regulatory & Litigation (Nationwide)
Chambers USA


Healthcare (District of Columbia)
Chambers USA

2018, 2020

Healthcare: Advice to Health Insurers
Legal 500 US


Healthcare: Transactional (Nationwide)
Chambers USA


Antitrust Law
The Best Lawyers in America

2013, 2015-2016, 2018-2019

Healthcare: Service Providers
Legal 500 US


Washington's Top Lawyers: Health Care


Health Care, Antitrust Litigation
Washington, D.C. Super Lawyers


Top 25 for Health Care
Best of the Best USA


Outstanding Health Care Antitrust Lawyer
Nightingale's Health Care News


Guide to the Leading U.S. Health Care Lawyers

Education and admissions


J.D., University of California, Berkeley School of Law, Order of the Coif, 1980

B.A., Yale University, magna cum laude, 1973


Former Chair, Board of Directors, Health Care Incentives Improvement, Inc. (parent of Prometheus Payment, Inc., and Bridges-to-Excellence)

Former Chair, Health Care and Pharmaceuticals Committee; Joint Conduct Committee; and State Enforcement Committee, Antitrust Section, American Bar Association

Inaugural Fellow, Past Vice President, and Member of the Board of Directors, American Health Lawyers Association

Bar admissions and qualifications

District of Columbia

Representative experience

Advising hospitals, physicians, health plans, and life science companies on merger clearance, HSR filings, and due diligence and integration planning.

Advising numerous physician networks and physician/hospital organizations regarding clinical integration.

Counseling numerous pharmaceutical companies regarding patent litigation settlements.

Counseling numerous drug and device manufacturers on pricing policies, including loyalty and volume discounts, bundling, and price discrimination.

Represented Advocate Health Partners in FTC investigation and litigation with a private health plan regarding its clinical integration program.

Technical advisor to grantees on RWJF Aligning Forces for Quality program re antitrust issues raised by employer/provider/health plan collaborations.

Defended several health plans in investigations by DOJ and state attorney generals regarding most-favored nation provisions.

Defended American Society for Reproductive Medicine in class action challenging ethical guideline on payments for egg donors; defeated damages class.

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