Antje Barreveld, MD - Course Director

Medical Director of the Pain Management Services and co-Founder and Director of Education and Outreach for the Substance Use Services (SUS). She is Associate Professor of Anesthesiology at Tufts University School of Medicine, and an Anesthesiologist with Commonwealth Anesthesia Associates at Newton-Wellesley Hospital since 2012. Dr. Barreveld is also a Clinical Researcher at Harvard Medical School in the Department of Anesthesiology, Perioperative and Pain Medicine at Brigham and Women's Hospital in Boston, MA.

Catharina Armstrong, MD, MPH

Associate Director of the Newton-Wellesley Hospital Substance Use Services. Dr. Armstrong graduated from University College Dublin School of Medicine. She completed Internal Medicine residency training at Massachusetts General Hospital and a fellowship in Infectious Diseases at Beth Israel Deaconess Medical Center. Dr. Armstrong was awarded a Master’s in Public Health from Harvard Medical School in 2014. She is board certified in Internal Medicine, Infectious Diseases and Addiction Medicine and is an Assistant Professor at Tufts University School of Medicine.

Hallie Delorey

Hallie is a Recovery Coach. She joined the Newton-Wellesley Hospital Substance Use Services in December 2019. She is a certified recovery coach, certified drug and alcohol counselor as well as a certified interventionist. She currently sees patients individually in the SUS clinic, runs a recovery group, as well as completes consults for the Newton-Wellesley emergency department and inpatient units. Hallie has over 30 years of recovery and has worked in the field of substance use disorder treatment in various capacities, including holding positions at Mclean Hospital, Gosnold Treatment Center and a therapeutic boarding school. She has conducted interventions all over the world. Her experience as a person in long-term recovery brings a unique type of support and understanding for those seeking help with their addiction.

Elyse Rosenberg, PhD

Pain Psychologist at Newton-Wellesley Hospital. She is a Clinical Assistant Professor in the Department of Psychiatry at Tufts University School of Medicine. She received her undergraduate degree in psychology from Tufts University and her doctorate in clinical psychology from the University of Vermont. She completed her pre-doctoral internship at the University of Rochester Medical Center and post-doctoral fellowship in consultation/liaison psychiatry at the Institute of Living/Connecticut Children’s Medical Center.

Joshua Smith, PsyD

Received his Doctorate in clinical psychology from Suffolk University and a master’s in public health from the University of Massachusetts Amherst. Over the course of his career he has worked in a variety of treatment settings including adult inpatient for severe and persistent mental illness, community mental health, general outpatient treatment, and within academic and school settings. He has worked with chronic illness throughout his career and transitioned to working in behavioral medicine and chronic pain in 2018 at the Arnold-Warfield Pain Center at Beth Israel Deaconess Medical Center. He joined the professional staff at Newton-Wellesley hospital in 2021, and has a particular focus on the psychophysiology of pain and chronic illness.

Angela Zaydon, LICSW

Program Manager and Clinical Social Worker for Newton-Wellesley Hospital's department of Substance Use Services. She graduated from Northeastern University with a Bachelor’s of Science in Psychology and Simmons College with a Masters in Social Work. Angela has worked in the field of addiction treatment since 2010; she has held several positions at both McLean Hospital and Lemuel Shattuck Hospital. She has extensive skills in substance use disorder management and treatment, knowledge of medical management therapy for opioid and alcohol use disorder, harm reduction and crisis intervention.