Executive Committee

The Executive Committee carries out the business of the College between regular meetings of the Board of Chancellors. It reports on its activities at each regular board meeting.

The Executive Committee is made up of the chair and the vice-chair of the Board of Chancellors, the president, the vice-president, the secretary-treasurer, the speaker and vice-speaker of the Council, and two additional chancellors.

Governance Documents

ACR Executive Committee


Jacqueline A. Bello, MD, FACR

Chair, Board of Chancellors

Alan H. Matsumoto, MD, FACR

Vice Chair, Board of Chancellors
Howard Fleishon, MD, FACR

Howard B. Fleishon, MD, MMM, FACR

ACR President

Frank J. Lexa, MD, MBA, FACR

ACR Vice President

Dana H. Smetherman, MD, MPH, MBA, FACR


Amy L. Kotsenas, MD, FACR

Council Speaker
Timothy Crummy, MD, FACR

Timothy A. Crummy, MD, MHA, FACR

Council Vice Speaker
Mary C. Mahoney, MD, FACR

Mary C. Mahoney, MD, FACR

RSNA® Liaison
Taj Kattapuram, MD

Taj Kattapuram, MD

YPS Representative
Krishnaraj Headshot

Arun Krishnaraj, MD, MPH

How Does the ACR Work?


Here’s the Big Picture. View Infographic »

With so many initiatives going on at once, the College needs a well-defined, streamlined structure that is well representative of its diverse constituency. But who does what, how do the different parts of the ACR fit together, and how are you represented in this structure?