Matching organs. Saving lives.


Brian Shepard

Chief Executive Officer

Shepard directs the efforts of more than 350 UNOS staff to ensure that the nation’s transplant network efficiently and fairly serves the needs of transplant candidates and recipients, living donors, donor family members, and transplant professionals. Read more about Brian Shepard >

Mary Ellison, Ph.D., M.S.H.A.

Chief External Relations Officer

Stephen Harms

Chief Operating Officer

David Klassen, M.D.

Chief Medical Officer

Maureen McBride, Ph.D.

Chief Contract Operations Officer

Alex Tulchinsky

Chief Technology Officer

Ryan Ehrensberger, Ph.D., FACHE

Senior Director, Research and Business Development

Henrisa Tosoc-Haskell, RN, M.S., M.S.H.A, CMQ-E

Senior Director, Member Quality and Organizational Excellence

James Alcorn, J.D.

Director, Policy

Richard Blair, M.S.I.S.

Director, Information Security

Roger Brown

Director, Organ Center

Daryl Chesley, Ed.D.

Director, Instructional Innovations

Brian Dudley

Director, Facilities and Security Department

Keith Ferguson

Director of UNOS Business Services

Jennifer Gavin

Director, UNOS Meeting Partners

Michael Levan

Director, IT Operations

Jason Livingston, Esq.

General Counsel

Matt Lovetro, CPA

Director, Finance

Jacqueline O’Keefe, M.B.A.

Director, Member Quality

Tony Ponsiglione

Director of Human Resources

Mike Pressendo

Director, Communications

Amy Putnam, M.S.W., M.B.A.

Director, IT Customer Advocacy

Lisa Schaffner

Director, Public Relations and Marketing

Marty Wilson

Director of Software Engineering

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