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Faculty and Staff

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Meet the Center of Excellence in Addiction Faculty

Stephanie Carreiro, M.D., FACEP

Assistant Professor, Department of Emergency Medicine

Brian Daly, MD

Associate Professor of Psychiatry

Gregg DiGirolamo, Ph.D.

Associate Professor of Psychiatry

Leonard A. Doerfler, Ph.D.

Adjunct Professor of Psychiatry

Dara C. Drawbridge, PH.D.

Assistant Professor of Psychiatry

Elizabeth Epstein, Ph.D.

Professor of Psychiatry

Siu Ping Chin Feman, M.D.

Assistant Professor of Psychiatry

William Fisher, Ph.D.

Professor Emeritus

Ayorkor Gaba, Psy.D.

Assistant Professor of Psychiatry

Gerardo Gonzalez, M.D.

Associate Professor of Psychiatry
Director, Division of Addiction Psychiatry

Mauricio Romero-Gonzalez, M.D., M.P.H.

Assistant Professor of Psychiatry
Director, International Initiatives

Cassie Glanton Holzhauer, Ph.D.

Assistant Professor of Psychiatry
Psychologist and Career Development Awardee

William Mcllvane, Ph.D.

Professor Emeritus

Ira Packer, Ph.D.

Clinical Professor of Psychiatry

Debra Pinals, M.D.

Adjunct Professor of Psychiatry

Paige Shaffer, M.P.H.

Instructor in Psychiatry
Chief Data Analyst

David Smelson, Psy.D.

Professor of Psychiatry
Director, Center of Excellence in Addiction

Amy Wachholtz, Ph.D., MDiv

Adjunct Assistant Professor of Psychiatry

Meet the Center of Excellence in Addiction Staff

A number of staff support the Center of Excellence in Addiction, namely through implementation and evaluation of the Maintaining Independence and Sobriety through Systems Integration, Outreach and Networking (MISSION) Model. MISSION was developed specifically to meet the unique needs of individuals with co-occurring mental health and substance use disorders (CODs), with versions available for homeless individuals, criminal justice-involved individuals, and military veterans. For more information, please visit 

Michael Andre, B.A.

Clinical Research Coordinator

Kathryn E. Bruzios, M.S.

Clinical Research Coordinator

Kendra Caputo

Clinical Research Assistant

Jennifer Harter, Ph.D.

Senior Project Director

Abigail Helm, Ph.D.

Program Director

Brooks Thompson, B.A.

Clinical Research Coordinator

Lexi Williams, B.A.

Clinical Research Assistant


The Center of Excellence in Addiction also frequently collaborates with innovators and leaders across the country.

Division on Addiction

Cambridge Health Alliance/Harvard Medical School

Dan Berlowitz, M.D., M.P.H.

UMASS Lowell Chair of Public Health

Daniel M. Blonigen, Ph.D.

VA, Palo Alto University

Edward W. Boyer, M.D.

Harvard Catalyst

Tom Byrne, M.S.W., Ph.D.

Boston University School of Social Work

Patrick Corrigan, Psy.D.

Illinois Institute of Technology

Nitigna Desai, M.D.

VA/BU School of Medicine

Sheryl Kubiak

Wayne State University School of Social Work

Alicia Lucksted, Ph.D.

VA/University of Maryland School of Medicine

Barbara McCrady, Ph.D.

Center of Alcoholism, Substance Abuse, and Addictions

Megan B. McCullough, Ph.D.

VA, Boston University School of Public Health

John D. Piette, Ph.D.

University of Michigan School of Public Health

Molly M. Simmons, Ph.D.

RAND Corporation

Matthew Stimmel, Ph.D.

Stanford Medicine

Christine Timko, Ph.D.

VA/Stanford University School of Medicine

Vera Yakovchenko