Richard W. Petersen, FACHE
President of MaineHealth & Chief Executive Officer of Maine Medical Center
Rich Petersen is President of MaineHealth and Chief Executive Officer of Maine Medical Center (MMC). Prior to his appointment, Rich served as President and CEO of MMC and prior to that as Executive Vice President and Chief Operating Officer at MMC for nine years. Before joining Maine Medical Center, Rich served as Senior Vice President for Kaleida Health Systems located in Buffalo, New York, a 1,600-bed system with a $1 billion annual budget. Rich currently serves as a board member for The Foundation for Maine's Community Colleges and The John T. Gorman Foundation. Rich is also a Corporator of MaineHealth and a fellow in the American College of Healthcare Executives.
Jeffrey D. Sanders
President of Maine Medical Center
Jeff Sanders was named President of Maine Medical Center in 2018. Prior to that, he served as Executive Vice President and Chief Operating Officer, responsible for day-to-day operations of the hospital. In that role, he served as a key strategic advisor to the President and CEO, other senior executives, and physician leaders. Jeff plays a critical role in the effective collaboration and integration with physicians, developing strong relationships and initiatives aimed at strengthening market presence and integrating services and practice sites. Before joining MMC, Jeff was the operating officer at Intermountain Medical Center in Murray, Utah, where he oversaw cardiovascular services, imaging services, sleep services, hyperbaric medicine, surgical services, transplant services, and medical research. Prior to his role at the flagship of Intermountain Healthcare, he was at McKay-Dee Hospital in Ogden, Utah, in charge of a number of programs including surgery, critical care, rehabilitation, laboratory services, information systems, and behavioral medicine. Jeff also played a key role in Intermountain Healthcare's partnership with GE Healthcare, leading numerous projects as part of the development of an integrated electronic medical record.
Chief Operating Officer
Jennifer McCarthy is Maine Medical Center's Chief Operating Officer, responsible for day-to-day operations of the hospital. She serves as a key strategic advisor to the President, other senior executives, and physician leaders.
Jennifer oversees Maine Medical Center’s Facilities, Human Resources, Imaging Services, Patient Care Services and Patient Care Support Services, and Service Line operations. She plays a critical role in the effective collaboration and integration with physicians, developing strong relationships and initiatives aimed at strengthening market presence and integrating services and practice sites.
She brings more than 20 years of health care experience to Maine Medical Center. Previously, Jennifer served as Chief Operating Officer of Dr. P. Phillips Hospital (Orlando Health) in Orlando, Fla., and before that as Vice President of Operations at Palm Bay Hospital (Health First) in Melbourne, Fla.
She is board-certified in healthcare management as a fellow of the American College of Health Care Executives (FACHE). She holds a master’s degree in business administration from the Florida Institute of Technology in Melbourne, Fla., and a bachelor’s degree in organizational development from Rollins College in Winter Park, Fla.
Lugene “Lou” Inzana, MBA, CPA
Chief Financial Officer and MaineHealth Associate Chief Financial Officer
Lugene “Lou” Inzana serves as Maine Medical Center’s Chief Financial Officer and as Associate Chief Financial Officer for MaineHealth. In his roles, Lou provides leadership and financial oversight of Maine Medical Center and financial support services for the other members of MaineHealth.
Lou is a seasoned health care finance expert with nearly 30 years of progressive leadership experience at organizations throughout the Northeast. He serves as a key strategic and financial advisor to the President and Chief Executive Officer of MMC, providing the analytical framework and business judgment necessary to evaluate alternative initiatives and help drive operating and financial performance. He has responsibility for budget and reimbursement, financial reporting, supply chain, financial planning, and revenue cycle management.
Prior to joining Maine Medical Center in 2014, Lou was most recently Vice President of Finance and Support Services/Chief Financial Officer at Lawrence + Memorial Corporation/Hospital in New London, Conn. Over the course of his career, Lou has carved out a reputation as a strong leader with high integrity, top-flight communication skills, and a passion for health care.
Lou holds both a B.A. in Accounting and an MBA in Finance from St. Bonaventure (N.Y.) University. He is also a Certified Public Accountant, a Fellow of the Healthcare Financial Management Association, and a member of the American College of Healthcare Executives. In addition to his professional endeavors, Lou has been an active volunteer for many years, serving on a wide range of boards and committees for organizations that promote stronger communities.
Maureen Van Benthuysen
Chief Administrative Officer Services Lines
Maureen Van Benthuysen serves as Maine Medical Center’s Chief Administrative Officer of Service Lines. Maureen oversees 12 service lines at Maine Medical Center: Adult Medicine, Cardiovascular, Neuroscience, Surgery, Oncology, Women’s; Pediatric’s; Emergency and Urgent Care; Critical Care, Orthopedics and Primary Care. She also leads four MaineHealth system wide Service Lines. Her role involves cultivating the patient-centered framework by enhancing care coordination, access to care, optimizing models of care delivery and patient outcomes.
Maureen has more than 30 years of experience in health care, and had served in the capacity of a Senior Vice President at New York’s prestigious Mount Sinai Hospital. In this role, Maureen provided full administrative, financial, operational, and strategic oversight to multiple departments and clinics, and served on the Steering Committees supporting the implementation of the electronic medical records system, Epic.
Prior to her work at Mount Sinai, Maureen was Director of Rehabilitation Services at St. Peter’s Hospital in Albany. Maureen began her health care career as a Physical Therapist at Sunnyview Hospital and Rehabilitation Center in Schenectady, New York.
Joel L. Botler, M.D.
Chief Medical Officer & President of Maine Medical Partners
Dr. Joel Botler serves as Maine Medical Center’s Senior Vice President of Medical Affairs and Chief Medical Officer, overseeing all clinical, medical management, and programmatic aspects of health care delivery. In this role he also serves as the primary liaison between MMC management and the private physician practice community. Dr. Botler is also the President of Maine Medical Partners, a subsidiary of MMC.
Dr. Botler’s relationship with MMC dates to 1979 when he began his Internal Medicine internship and residency after earning his medical degree at the State University of New York (SUNY) in Brooklyn. Since that time, he has served the southern Maine community as a primary care internist for 30 years; helped to found InterMed in 1995; and held numerous leadership roles at MMC focusing on areas such as Family Medicine, Geriatrics, and Adult Medicine. Most recently, Dr. Botler held the title of MMC Vice President, Adult Medicine Service Line, and co-chair of the Maine Medical Partners Finance Committee.
Dr. Botler is well regarded as a “physician’s physician” throughout the community, earning praise from peers and patients alike. He is a four-time winner of the MMC Family Medicine Residency Program Inpatient Attending of the Year award and has also been recognized as the Maine Alzheimer’s Champion for 2011.
Devin Carr, DNP, RN, RRT, ACNS-BC, NEA-BC, CPPS
Chief Nursing Officer
Devin Carr is Chief Nursing Officer at Maine Medical Center, leading the medical center’s Magnet-Recognized nursing team. Devin joined MMC in 2020, coming from the University of Michigan Medical Center (U of M) in Ann Arbor, a Magnet-designated hospital, where he served as the chief nursing officer for one of the nation’s leading medical centers. Prior to U of M, Devin served as Administrative Director of the Surgery and Transplant Patient Care Center at Vanderbilt University Medical Center, a three-time Magnet-designated facility, in Nashville, Tennessee.
He has more than 30 years of experience in healthcare in a variety of clinical, academic and leadership roles. He has employed collaboration across multiple enterprises to improve patient satisfaction scores, reduce risk and harm, and strengthen regulatory compliance readiness.
Devin earned his DNP from Concordia University Wisconsin, an MSN from Clarkson College, and a BSN from Middle Tennessee State University, as well as an associate degree of applied science in respiratory therapy from California College for Health Sciences.
Douglas B. Sawyer, MD, PhD
Chief Academic Officer
Doug Sawyer, M.D., is chief academic officer for Maine Medical Center. In his role, he oversees all aspects of the institution’s academic and research missions, including medical training and post graduate programs, the Maine Track program partnership with Tufts University School of Medicine and also Maine Medical Center Research Institute.
Dr. Sawyer joined MMC in 2014 to serve as MMC’s chief of cardiac services and physician leader of the cardiovascular services line. Prior to that, Dr. Sawyer worked at Vanderbilt University where he served in clinical and academic leadership positions. He earned his medical degree and doctorate from Cornell University and completed his postgraduate training, including his internship and residency in Internal Medicine and his Clinical Cardiology Fellowship, at Brigham and Women’s Hospital in Boston.
Dr. Sawyer continues to serve his community as a practicing cardiologist at Maine Medical Partners.
Mark G. Parker, MD
Vice President, Quality and Safety
Dr. Mark Parker has been on medical staff as a nephrologist at Maine Medical Center since 1999 and assumed the role of Vice President of Quality and Safety in 2017. He attended the University of Connecticut School of Medicine and completed an internal medicine residency and nephrology fellowship at Tufts (formerly “New England”) Medical Center. He worked briefly in private practice and subsequently at Lahey Clinic in Burlington, Mass. before moving to Maine.
At MMC, Dr. Parker has served in a variety of leadership roles, including 15 years as the nephrology fellowship program director and nine years as the nephrology division director. During that time, he developed expertise and a national reputation in nephrology medical education and healthcare workforce issues. He continues to participate in clinical care and teaching since transitioning to quality and safety leadership.
As a quality and safety leader, Dr. Parker has completed certificate work at the Institute for Healthcare Improvement in both the Improvement Advisor and Patient Safety Executive programs. He provides oversight for the hospital Operational Excellence, Patient Experience, Risk Management/Patient Safety, and Quality Analysis teams, and he also helps lead Maine Medical Partners quality improvement activities. Dr. Parker retains a strong presence in medical education, guiding quality and safety curricula and supporting student and resident involvement in related projects.
Nathan W. Mick, M.D.
President, Maine Medical Center Medical Staff
Dr. Nathan W. Mick is the current President of the Maine Medical Center Medical Staff. He is the Vice Chair of the Department of Emergency Medicine at Maine Medical Center and an Associate Professor of Emergency Medicine at Tufts University School of Medicine.
Dr. Mick received his Bachelor of Science degree in Biology from the University of Notre Dame followed by his M.D. at Duke University School of Medicine. After medical school, Dr. Mick did residency training in Emergency Medicine at the Harvard Affiliated Emergency Medicine residency followed by a fellowship in Pediatric Emergency Medicine at Boston Children’s Hospital.
After completing training, he took a faculty position at Maine Medical Center as the Director of Pediatric Emergency Medicine in 2005. He currently lives in Falmouth with his wife Kellie and two daughters, Gracyn, age 14, and Afton, age 12.
Don MacMillan, MS, CHCIO
Senior Director of IS and Regional CIO
Don MacMillan, MS, CHCIO, is Maine Medical Center’s Senior Director of IS and Regional CIO. Don provides relationship management between IT and hospital executives, consulting leaders on strategies to leverage technology to meet organizational and operational objectives and provides direction on governance, service, change management, staff development and assessment of systems to managers and staff.
Don is a CHIME (College of Healthcare Information Management Executives) Certified Healthcare Chief Information Officer with a wide range of experiences at a variety of healthcare organizations going back to 2005. Prior to Maine Medical Center, he was director of patient care innovations at Methodist Le Bonheur Healthcare in Tennessee, and he ran an independent consulting company.
Don has an MS in business from Husson University in Bangor and received his bachelor’s degree from Arizona State University in 2001. He is a member of two IT professional organizations, CHIME and the Healthcare Information Management Systems Society, and active in community service.
Thomas C. Ter Horst
Vice President, Human Resources
Tom Ter Horst serves as Vice President, Human Resources, for Maine Medical Center. In his role, Tom oversees the day-to-day administration of HR programs, policies and services at Maine Medical Center. He is responsible for ensuring efficient, effective and compliant customer focused HR operations.
Tom comes to Maine from Madison, Wis., where he most recently served as system vice president of human resources for SSM Health, a multi-state, not-for-profit health system. Tom has over 15 years of HR leadership at health care organizations covering a broad range of critical functions including strategic planning, change management, recruitment, compensation, training and much more. Prior to serving as a system vice president, he served as vice president for human resources at Aurora Health Care, a Milwaukee-based integrated health care provider serving Wisconsin and northern Illinois.
Tom earned his MBA from Marquette University in Milwaukee and his BBA from St. Norbert College in De Pere, Wis. He is a member of the Society for Human Resource Management and is SHRM-SCP and SPHR certified.
Alexander M. Green
Vice President of Strategy and Business Development
Alexander M. Green is MaineHealth’s Vice President of Strategy and Business Development. He serves as the strategy executive in MaineHealth’s Southern Region which includes Maine Medical Center and Southern Maine Health Care. He partners with his colleagues to guide strategic and business planning activities to improve and expand the healthcare infrastructure in Southern Maine.
Al joined MaineHealth in March 2015 and brings over 10 years of progressive leadership experience in healthcare. He has worked in many capacities within MaineHealth including Project Manager in the Center for Performance Improvement, Director of Strategy and Regulatory Compliance, and Associate Vice President of Strategic Planning. Prior to joining MaineHealth, Al served as Project Manager at an independent Oncology Practice in Cincinnati, OH.
He received a master’s in healthcare services administration from Xavier University in Cincinnati, OH and a bachelor’s degree in business administration and finance from Fort Lewis College in Durango, CO. He is a certified Project Manager Professional from the Project Management Institute, a member of the American College of Healthcare Executives, and a member of the Society for Health Care Strategy & Market Development.
In addition to his professional endeavors, Al has a family with two small children and is an active volunteer for organizations that promote conservation of our natural resources.
Clayton M. Holtzman
Associate Vice President of Communications and Public Affairs
Clayton Holtzman is Associate Vice President of Communications and Public Affairs at Maine Medical Center. Clay joined MMC in 2015 and directs internal and external communications as well as strategic communications support for organizational priorities. He is a member of the MaineHealth Marketing & Communications Department senior team.
Previously, Clay served as director of Population Health Communications at Renton, Wash.-based Providence St. Joseph Health, one of the nation’s largest nonprofit health systems. He has also managed public relations for Swedish Health Services and was part of the digital communications team at Fred Hutchinson Cancer Research Center, both in Seattle.
Clay is currently completing an Advisory Board fellowship and is a member of the Society for Healthcare Strategy and Market Development.