Leadership Team

Supporting Hallmark Health Medical Associates providers and staff in their delivery of the highest quality of care and service to our patients is an executive leadership team with strong leadership, management, and financial skills. These experienced healthcare and business professionals work closely with physician leaders and staff to create clinical and operational excellence in one of the most rapidly growing multi-specialty groups north of Boston.

Michael Newman, MD, FACP, CPE

President, Hallmark Health Medical Associates; Chief Medical Officer, Hallmark Health Medical Associates; Executive Vice President of Professional Services for Hallmark Health System
Michael NewmanMichael Newman, MD, FACP, CPE attended medical school at New York University School of Medicine and subsequently completed his internship and residency at the University of Michigan Medical Center. Mike completed a fellowship in gastroenterology and hepatology at Thomas Jefferson University Hospital in Philadelphia. After board-certification in internal medicine and gastroenterology, Dr. Newman has been practicing gastroenterology for more than 23 years and has also served in various medical leadership positions over the past 15 years. Dr. Newman has been with Hallmark Health Medical Associates for the past four years. Initially recruited as the medical director of gastroenterology services for HHMA, he subsequently took an added responsibility as Hallmark Health System medical director of gastroenterology. Dr. Newman currently serves as Hallmark Health System Associate CMO, HHMA Chief Medical Officer and Executive Vice President of Professional Services. Dr. Newman serves on various System and HHMA committees, each of which focuses on development and growth, physician recruitment and retention, patient engagement and satisfaction and quality of care. Dr. Newman is also a member of the Hallmark Health Medical Associates Board of Directors. Dr. Newman recently completed his Certified Physician Executive Program through the American Association for Physician Leadership and is working toward completing his MBA.

David Miller, MD, MA

ACMO, Hallmark Health Medical Associates
david-millerDavid M. Miller, MD, MA, attended medical school at Washington University School of Medicine in St. Louis, and completed his internship and residency training in internal medicine at Barnes-Jewish Hospital, also in St. Louis. David is board-certified in Internal Medicine. Immediately following residency, Dr. Miller was a hospitalist for two years. He has been a practicing primary care physician (PCP) since relocating to the Boston area in 2000, initially at Harvard Vanguard Medical Associates (in Peabody) and, most recently, in the Bulfinch Medical Group at Massachusetts General Hospital. In addition to patient care, Dr. Miller served as a continuity clinic preceptor for internal medicine residents at MGH. He also served on various committees within his practice. Dr. Miller has a particular interest in quality and safety issues. He resides in Newton with his fiancée Paula and his twin sons.

Melissa Garrett Kingston

Director of Finance
Melissa-Garrett-KingstonMelissa Garrett Kingston has been with Hallmark Health Medical Associates since 2007.  Prior to joining HHMA, she held financial analyst and controller positions with Massachusetts Eye and Ear Associates and Partners Healthcare System.  Melissa earned her MBA from Suffolk University and her Bachelor of Science degree in finance and marketing from Boston College.

Lori Barrett, RN, MBA

Director of Clinical Integration and Call Center; Interim Executive Director of Operations
Lori Barrett, RN, MBA, has transitioned from her role as system risk manager to director of clinical integration and patient experience. In her role at HHMA, Lori is responsible for planning, directing and coordinating the delivery of health care provided by clinical nursing and medical assistant staff, and overseeing the implementation of technological innovations to improve the delivery of health care.

Sam Tarabelsi

Regional Practice Administrator
Sam TarabelsiSam Tarabelsi has been with Hallmark Health for over 40 years. Sam led the HHMA effort to implement the Electronic Medical Record across all practices and sites. He has also led the effort to startup over twenty physician offices in the past several years. Sam is currently leading HHMA’s effort to adopt Virginia Mason techniques, and he is leading HHMA’s efforts to achieved Medical Home certification. Sam earned his Bachelors of Pharmacy and Allied Health degree, with a major in Medical Technology, from Northeastern University and his Masters in Business Management from Lesley University.


patientportalOur Patient Portal provides safe and secure online access to better communicate with your HHMA doctor. This easy-to-use web tool is a convenient way to book appointments, request referrals, renew prescriptions, view medical records/test results and communicate with your health care provider from the privacy of your own computer.