Associate Chief Nurse, Center for Nursing Excellence and Chief of Staff
Mass General Trustees Endowed Chair in Nursing and Patient Care Professional Practice

Marianne Ditomassi, DNP, RN, MBA, NEA-BC, FAAN, is Associate Chief Nurse of the Center for Nursing Excellence and Chief of Staff at the Massachusetts General Hospital. She also functions as the Chief of Staff, supporting the work of the Senior Vice President for Patient Care and Chief Nurse, who oversees the operations of nursing and the health professions.

Dr. Ditomassi’s key areas of accountability include oversight of elements advancing professional practice development and evaluation including hardwiring the newly-reimagined shared decision-making model, promoting recruitment and retention initiatives, expanding our interprofessional awards & recognition opportunities, aligning quality and safety and informatics with MGB’s commitment to high-reliability principles, contributing knowledge to the profession through research and evidence-based practice, sharing our expertise through global outreach engagements and securing funding through philanthropy to fuel a strong, professional practice environment. In addition, the Center houses several important programs that advance care of people with disabilities, autism, and geriatrics.

In addition, she is the Magnet Program Director for Mass General and successfully coordinated Mass General’s initial Magnet designation journey in 2003 and subsequent Magnet re-designations in 2008, 2013, 2018 and 2023.

She has co-authored three books published by Sigma Theta Tau titled, Fostering Nurse-Led Care at the Bedside, Fostering Clinical Success Using Clinical Narratives for Interprofessional Team Partnerships and Fostering a Research-Intensive Organization.

Dr. Ditomassi’s program of research has focused on evaluating the effectiveness of the professional practice model and environment at Mass General and other healthcare organizations around the world using the Professional Practice Work Environment Inventory Scale (PPWEI) and the Power as Influencing Professional Practice Change Scale (PIPPCS).

Dr. Ditomassi received her BSN from Georgetown University, her MSN from Loyola University in Chicago, her MBA from the University of Illinois at Chicago and Doctorate in Nursing Practice from the Mass General Institute of Health Professions. In 2017, she was inducted as a Fellow in the American Academy of Nursing.