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Ron Poulin

Mr. Poulin is the owner of Country Tire & Service Center and partner in Dick Poulin Chrysler-Jeep Dodge-Ram in Rochester. Mr. Poulin has lived most of his life in Rochester. He is an active community member, and currently serves on the Rochester Economic Development Committee and Rochester Rotary. He is a graduate of the University of New Hampshire, Chevrolet Dealership Management Academy, UNH Family Business School, and the Dale Carnegie Course on Human Relations.



John Marzinzik

John Marzinzik has a long history of serving in the financial field within the hospital environment. In 1980, he started as Director of Billing & Information Systems at North Adams Regional Hospital in North Adams, Massachusetts. Prior to becoming the Chief Financial Officer of Frisbie Memorial Hospital in 1993, Mr. Marzinzik was Vice President of Finance and Facilities at Exeter Hospital in Exeter, NH. He has also served as Comptroller for Katherine Shaw Bethea Hospital in Dixon, Illinois.

He earned a BS in Business Administration at Northeastern University and his MBA from the University of Massachusetts.

Marzinzik is a member of the Healthcare Financial Management Association. He is also a board member with the Medical Mutual Insurance Company of Maine

Joe Shields
Senior Vice President

Joe Shields has nearly 30 years experience in hospital management. In addition to the development and implementation of the hospital's strategic planning processes, Mr. Shields also oversees the hospital's construction and renovation projects as well as physician recruitment efforts.

Prior to coming to Frisbie, Mr. Shields was the Director of Marketing Projects at the Osteopathic Hospital of Maine in Portland, and before that the Director of Community Relations at Cheshire Hospital in Keene, NH.

Mr. Shields has a Bachelor of Arts Degree from the State University of New York College at Plattsburgh and an MBA from Nasson College.

He is a certified Member of the American College of Healthcare Administration, and has served on numerous Boards of area non-profit organizations.

Amy Guilfoil Dumont, MSN, RN, CCRN
Chief Clinical Officer/Vice President, Patient Care Services

Amy Guilfoil Dumont joined Frisbie Memorial Hospital in 2012 as Vice President of Patient Care Services. Ms. Guilfoil Dumont has a solid background in nursing, progressing to Senior leadership positions in numerous hospitals. She was a staff nurse in Surgical Intensive Care at NE Deaconess Hospital for six years, a Critical Care Clinical Nurse Specialist at Lowell General Hospital for four years, and Director of Cardiovascular and Women's Health Services for eight years at St. Joseph Hospital in Nashua, NH. Most recently, she was Vice President, Clinical Support Services and Innovation at Elliot Health System in Manchester, NH.

Ms. Guilfoil Dumont earned a Bachelor of Science degree in Nursing from Saint Anselm College in Manchester, NH, and a Master of Science degree in Nursing from Salem State College, Salem, Mass.

In her current role, Ms. Guilfoil Dumont provides administrative leadership support to Infection Control, Care Management, Geropsychiatry, Emergency Services, Center for Cancer Care and hospital nursing services.

Paula Mahoney
Vice President, Physician Services

Paula Mahoney is a graduate of Boston University with a degree in Communications. Mahoney has over 30 years of progressive experience in dental and medical practice management with a focus on Provider Relations, Physician/Hospital Alignment and Quality Patient Experience and Outcomes.

Carol Themelis
Vice President, Human Resources

Prior to joining Frisbie as Vice President, Human Resources in 1992, Ms. Themelis was Senior Vice President for Human Resources for a New Hampshire bank holding company for seven years and Vice President of Retailing Banking for Numerica Savings Bank from 1980 – 1985.

Ms. Themelis holds a BA from Plymouth University, a Certificate from Babson College Executive Human Resources Program, and is a graduate of the Dartmouth College Tuck Business School of Banking and the American Institute of Banking.

Ms. Themelis was Board Chair of Northeast Delta Dental for several years and was awarded the 2010 President's Award for her accomplishments as Chair of NH Hospital Association Worker's Compensation Trust.

She is currently on the Personnel Advisory board for the City of Rochester and is a member of American Society for Healthcare Human Resources Association.

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