Senior Leadership

Senior Leadership Team

Our experienced and dedicated leadership team is guided by our Mission to provide care for the whole person, in service to all in our communities as well as by our core values of compassion, integrity, collaboration and excellence.

Covenant Senior Vice President & President of St. Joseph Healthcare/St. Joseph Hospital

Mary Prybylo became the President of St. Joseph Healthcare/St. Joseph Hospital in Bangor, Maine in 2011. Having worked in patient care as a registered nurse, and later receiving her master’s in nursing, Mary brings an understanding and compassion for people, health and care, along with extensive experience in both leadership and administration.

Prior to her time at St. Joseph Healthcare, Mary served as the Chief Operating Officer at Waterbury Hospital Health Center, where she was responsible for operations, physician partnerships and strategic initiatives that supported the delivery of patient care in both inpatient and outpatient settings.

Prior to this, Mary held several positions including the Director of Community Care Management and Vice President of Managed Care and Operations within the Anthem Blue Cross and Blue Shield of Connecticut system, as well as Vice President for Patient Care Services at St. Mary’s Hospital in Waterbury, CT.

Mary is active in the Bangor community and is an advocate for the health and wellbeing for everyone in the region, including our most vulnerable populations. She is involved in several organizations including board member leadership at Husson University, Bangor Regional YMCA and Penquis Community Action Agency Board.

Chief Financial Officer



Dr. Jims Jean-Jacques is the President of the Medical Staff and a Cardiology provider at St. Joseph Healthcare. He received his DO degree at The Rowan University School of Osteopathic Medicine and completed his internal medicine residency and cardiovascular disease fellowship at Michigan State University College of Osteopathic Medicine in Michigan. He also completed an advanced fellowship in Advanced Heart Failure and Transplantation at the University of Rochester Medical Center – Strong Memorial Hospital in Rochester, NY. He is board certified in internal medicine, cardiovascular medicine, and advanced heart failure & transplant cardiology.

Dr. Jean-Jacques joined St. Joseph Healthcare in July 2017 and is the current Chief of Medicine, Director of the Heart Failure Program, and the Chairman of the Ethics Committee at St. Joseph Healthcare. He previously served as the Vice-President of the Medical Executive Committee, Chairman of the Credentials Committee, Chairman of the Bylaw Committee, and Secretary/Treasurer of the Medical Executive Committee.

Dr. Jean-Jacques is also very active in his community.  He serves on the Medical Advisory Board of the Maine State Department Bureau of Motor Vehicles, Member Charter Committee of the town of Hampden, President of the Maine Medical Society (an affiliate of the National Medical Association), Founder of The Haitian Network of Maine, Medical Director Cardiac Rehabilitation Program Bangor Region YMCA, and Maine Medical Association Board of Directors.

Dr. Jean-Jacques and his wife Tania have two children. When he is not working, he enjoys playing the piano, reading, traveling, and spending time with family and friends.

Roland Joy is the Vice President of Patient Care Services at St. Joseph Healthcare. He has been a registered nurse for over 40 years, with 25 years of executive experience in health care ranging from home health and hospice to acute care in hospitals in Maine, Georgia, North Carolina and Ohio. He received his Associate degree in Nursing from Southern University of Seventh Day Adventists, his Bachelor of Science degree in Business Administration from Shorter University and his Master of Science degree in Nursing from the University of Phoenix.

Prior to joining St. Joseph Healthcare, he held executive positions at AdventHealth, Aroostook Medical Center, and Hamilton Medical Center.  He has also shared his expertise as a consultant with home health organizations and has taught health management courses at the collegiate level.

He serves the community as a board member of the Maine Action Coalition and is on the Maine Hospital Association’s Workforce Council.

Though he was born in Georgia, he has strong roots in Maine since his father was born and raised in the Lincolnville, Maine area.  He fondly remembers visiting his grandparents in Camden, Maine each summer.  He and his wife Beverly have five children and 12 grandchildren.  They also have a notorious cat named Felix. When he is not working, he enjoys time with his family and traveling in Maine, Canada, and across New England.

Dr. David Koffman is the Vice President of Medical Affairs at St. Joseph Healthcare. He has been a primary care physician serving the community for over 25 years in addition to his executive-level responsibilities. His areas of interest include patient safety, the use of technology to serve rural populations, population health, and accountable care.

He received his Bachelor of Arts degree in Chemistry and Physics from Harvard College and continued on to the University of Massachusetts Medical School, completing his residency in Internal Medicine at the University of Chicago Hospitals. He recently completed his Executive Master of Business Administration degree from Brandeis University Heller School of Business.

Prior to serving St. Joseph Healthcare, he held executive-level positions at Covenant Health, Community Care Partnership of Maine, and Eastern Maine Medical Center.

He currently serves the community as a Board Member of HealthInfoNet, an independent non-profit organization that manages statewide Health Information Exchange (HIE) in Maine.

Dr. Koffman and his wife, who is also a physician specializing in Bariatric Surgery, have two adult children who are proud Orono High School graduates. Though they do not currently live in the state, they love coming back to visit Maine. When he is not working, he enjoys spending time outdoors and with his family at their island camp in the Millinocket area.

Sandy Nesin, Esq. serves as the Vice President of Operations at St. Joseph Healthcare and the Chief Executive Officer for Community Care Partnership of Maine (CCPM), an accountable care organization spanning the State of Maine. Ms. Nesin joined St. Joseph Healthcare in May of 2016. A graduate of the University of Maine (B.A), and the University of Maine School of Law (J.D.), Sandy has experience working in both health care and health insurance operations.

While attending Law School, Sandy was awarded an Equal Justice Works Student Fellowship for her work with the Maine Medical Association in providing education and support to primary care practices and providers regarding passage of the Affordable Care Act.

Sandy currently serves the community as a Board Member of Bangor Nursing and Rehab and has held several past board positions for not-for-profit organizations across the state. Sandy also currently serves on the State of Maine’s Rural Health Transformation Team, and on the Policy Committee for the National Association of Accountable Care Organizations.

Sandy, her husband Jason and their daughter Eliana live in the Bangor area. When she is not working, Sandy is an avid reader and explorer, and enjoys traveling and spending time at the lake with friends and family.

(207) 907-1000
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