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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

Gregg DiGirolamo, Ph.D.

Associate Professor of Psychiatry

Leonard A. Doerfler, Ph.D.

Adjunct 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

Abigail Helm, Ph.D.

Dr. Helm is a Program Director in the Smelson Lab at the UMass Chan Medical School Department of Psychiatry. Dr. Helm earned her doctorate in psychology at the University of Massachusetts Amherst, and she joined the lab in October 2020. As a part of the lab, Dr. Helm manages state and VA-based projects, serves as a data analyst, and supports grant submissions and publications. Her research interests include developmental psychopathology, cognitive neuroscience, and e-learning.

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 http://www.missionmodel.org/ 

Michael Andre, B.A.

Clinical Research Coordinator

Kathryn E. Bruzios, M.S.

Clinical Research Coordinator

Jennifer Harter, Ph.D.

Senior Project Director

Brooks Thompson, B.A.

Clinical Research Coordinator

Lexi Williams, B.A.

Clinical Research Assistant

Affiliates

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