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Covenant Health is an innovative, Catholic regional delivery network and a leader in values based, not-for-profit health and elder care. We sponsor hospitals, nursing homes, assisted living residences and other health and elder care organizations throughout New England.

St. Mary’s Health System Expands Its Nursing Leadership Team


St. Mary’s Health System, a member of Covenant Health, recently welcomed four seasoned veterans to its Nursing Leadership team­­­­­­­­­­­­­­­­: Lisa Burrell PhD, MSN, RN, CNE, NPD-BC, Katie Graffam, MSN, RN, Michelle Sanborn, MBA, BSN, ACM-RN, and Denise White, DNP, MHA, RN, NEA-BC, CCRN.

Lisa BurrellLisa Burrell joins as the Director of Clinical Education and Professional Practice. Most recently, she was the Director of Education at Doctors Community Hospital in Laurel, Maryland. Burrell earned her PhD from Capella University and her MSN from Queens University of Charlotte. She is accredited in Nursing Professional Development and a Certified Nurse Executive and holds adjunct faculty roles at both Washington Adventist University and Grand Canyon University. 




Kathryn GraffamKatie Graffam joins as the Director of the Medical Surgical Telemetry unit. Her experience includes working at Maine General Medical Center where she held the position of Nurse Manager, Rehabilitation and Central Maine Medical Center where she was the Nurse Manager of Medical, Surgical and Oncology. Graffam earned her BSN from Colby-Sawyer College and her MSN from Purdue University Global.




Michelle SanbornMichelle Sanborn joins as the Director of Care Coordination. She most recently worked at Patient Advocates as an Advocacy Manager. At Central Maine Medical Center, she held roles as the System Director of Care Management and the System Director of Capacity Management. Sanborn earned her BSN from the University of Southern Maine and her MBA for Southern New Hampshire University. She is also an accredited Case Manager.



Denise WhiteDenise White joins as the interim Director of the Intensive Care Unit. She has more than 20 years of Critical Care experience and most recently served as Director, Critical Care at Lawrence General Hospital in Massachusetts. White earned her DNP from Fairfield University, her MHA from Western CT State University, and her BSN from the University of Southern Maine. She is also accredited as a Nurse Executive Advanced, and Critical Care Registered Nurse.

“I’m thrilled to welcome these four experienced professionals to the St. Mary’s team,” says Patricia Scherle, Vice President of Patient Care Services and Chief Nursing Officer at St. Mary’s. “The breadth of their nursing experience and their many years of compassionate service elevates our already-high bar of patient-centered care.”

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St. Mary's Health System • 93 Campus Avenue • Lewiston, ME 04240