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Baystate Health is a not-for-profit, integrated health care system serving over 800,000 people throughout western New England. With roots dating to the founding of Springfield City Hospital in 1873, Baystate Health has been providing skilled and compassionate health care in the Pioneer Valley for more than 140 years. Learn more about our leadership below.

Leadership: The President's Cabinet

Mark A. Keroack, MD, MPH

President & CEO
Chair, Board of Directors, Health New England

Dr. Keroack provides strategic, financial, and operational oversight for all services at Baystate Health and its subsidiary health plan, Health New England. The clinical delivery system includes Baystate Medical Center, the tertiary care academic medical center for western Mass, three community hospitals in Greenfield, Palmer, and Ware, Baystate Medical Practices, with its 600 providers in 75 practices across the region, Baystate’s research and educational programs, the Baystate VNA and Hospice, and several other subsidiaries and joint ventures. Prior to his current role, Dr. Keroack served as system chief operating officer from April of 2013 through June of 2014 and as chief physician executive and president, Baystate Medical Practices from June 2011 through April 2013.

Dr. Keroack came to Baystate Health from University HealthSystem Consortium (UHC) in Oak Brook, Illinois where he served as senior vice president and chief medical officer. At UHC, a national alliance of 112 academic medical centers, he oversaw programs for clinical and operational performance improvement, faculty group practice management and patient safety. He is the co-creator of the Faculty Practice Solutions Center database and the UHC Patient Safety Net adverse event reporting system. He also led UHC’s research to define the leadership and management practices associated with top organizational performance in quality care.

Prior to his national work, Dr. Keroack served on the faculty of the University of Massachusetts for 12 years. During that time, he focused on HIV and AIDS care and won five annual teaching awards. Beginning in 1995, Dr. Keroack took on a more administrative role, serving as the first president of the 700-physician UMass Memorial Medical Group and the vice president of Medical Management for UMass Memorial Health Care. He has authored over 50 publications.

Dr. Keroack is a graduate of Amherst College and Harvard Medical School and received his MPH from Boston University. He trained in internal medicine and infectious diseases at Brigham and Women’s Hospital in Boston, Mass. He is married to Dr. Annmarie Errichetti, CEO of St. Peter’s Hospital in Albany, NY. They have two grown daughters now living in Clinton, MA and Burlington, VT.


Andrew W. Artenstein, MD

Chief Physician Executive and Chief Academic Officer, Baystate Health; President, Baystate Medical Practices; and Regional Executive Dean, University of Massachusetts Medical School-Baystate

Dr. Artenstein leads Baystate Medical Practices, a faculty practice plan comprising nearly 600 providers at Baystate Health in western Massachusetts. Additionally, he is responsible for a wide range of contracted clinical service relationships with independent medical groups, including those in anesthesia, nephrology, orthopedics, and radiology. In this role he advances the vision of mutually beneficial, aligned relationships in a hybrid medical staff model. Dr. Artenstein oversees the academic educational and research enterprises at BH.

Dr. Artenstein received his B.A. at the University of Rochester, Rochester, NY and his M.D. at Tufts University School of Medicine in Boston. He completed his Internal Medicine residency and fellowship in Infectious Diseases at Walter Reed Army Medical Center and the Walter Reed Army Institute of Research, both in Washington D.C.

Evan M. Benjamin, MD, FACP

Senior Vice President for Quality & Population Health and Chief Quality Officer

As Senior Vice President for Quality and Population Health, Dr Benjamin is part of the senior management team at Baystate Health. Dr Benjamin oversees the strategy for improvement work and for moving Baystate forward to achieve the best population health outcomes for our patients. He has broad responsibilities for the health system including all aspects of clinical quality, patient safety, the primary care physician practices, Health Information Technology and the Home Care Division of Baystate Health. He participates actively in scholarly research in health care delivery and is Professor of Medicine at Tufts University School of Medicine.

He began a career in public health in 1990 helping to illuminate the problem of diabetes among Native Americans. His research interest in the quality of care brought him to Baystate first as the assistant director of the medical residency program and then as Medical Director of Quality for BMC and then as Vice President of Quality for BH. He sits on numerous national committees on quality and patient safety and is a published author in periodicals, books, and peer reviewed journals.

Dr. Benjamin received his BA with highest honors from Williams College in Massachusetts and his MD degree from Case Western Reserve University where he was nominated to the Alpha Omega Alpha Medical Honor Society. He completed his residency in Internal Medicine at Yale New Haven Hospital, and completed public health training in the National Public Health Service in New Mexico. He is currently enrolled to receive a Master's in Health Policy from Dartmouth College. He is a fellow of the American College of Physicians.


Dennis W. Chalke

Chief Financial Officer & Treasurer
Senior Vice President, Community Hospitals

Mr. Chalke is responsible for the financial oversight of Baystate Health’s provider entities including three acute care hospitals and two physician organizations. His responsibilities include budgeting, financial planning and analysis, capital financing, managed care contracting, cost accounting, decision support, and oversight of revenue cycle functions. As Chief Financial Officer of Baystate Health, he is responsible for the annual budget and other critical operating activities. He also is responsible for all supply chain activities including purchasing, warehousing, value analysis and distribution.

He has over eighteen years of healthcare experience having joined Baystate in 1988. Previously Mr. Chalke was with United Technologies Corporation in Hartford, CT, where he worked in the finance organization on mergers, acquisitions and financial planning.

Mr. Chalke holds an MBA from the University of Massachusetts, Amherst and a BA in Economics from Ithaca College, Ithaca , NY.


Jo-Ann W. Davis, JD

Senior Vice President & Chief General Counsel

Jo-Ann is responsible for planning, directing, and managing legal services for the health system, including corporate matters, commercial, government and physician contracts, regulatory and compliance issues, intellectual property, governance, employment and labor relations, and oversight and management of outside counsel. She also serves as primary legal advisor to the president & CEO and the Board of Trustees.

Jo-Ann joined Baystate Health in 2003, as director of Employee Relations and was promoted in 2012 to vice president, Human Resources Consulting and Employee Relations. Previous to Baystate Health, Davis held partnership positions in two law firms in Springfield, MA. She is a member of the American Health Lawyers Association and the Massachusetts Bar Association, and holds a Juris Doctor from Western New England University School of Law, a Master of Education from Harvard University, and a Bachelor of Arts from Wheaton College.

Jennifer Endicott

Chief Strategy Officer & Senior Vice President, Strategy & External Relations

Jennifer will work closely with the senior team to formulate and execute health system strategy and provide oversight for all strategic planning, business development and external relations functions to fulfill Baystate Health’s vision and mission.

Jennifer comes to Baystate Health from Orlando Health in Florida, where she served as vice president, Clinical Integration, for an 1,800+ bed system comprised of eight acute inpatient facilities including Orlando Regional Medical Center, a level one trauma center and teaching hospital.

Prior to her role at Orlando Health, she served as senior vice president for the national health care management consulting group, Navvis & Company, headquartered in St. Louis. In this role she assisted physicians and organizations in coming to consensus around core ideals and creating partnerships. She is a graduate of the University of Florida.


Maura C. McCaffrey

As President and Chief Executive Officer, Maura McCaffrey leads Health New England in its mission to improve the health and lives of the people in its communities. A wholly-owned subsidiary of Baystate Health, Health New England offers a range of health care plans in the commercial, Medicaid and Medicare markets. Ms. McCaffrey is responsible for strategic and operational leadership of the non-profit health plan and its 200,000 members.

Prior to becoming CEO in April 2014, Ms. McCaffrey served as Chief Operating Officer with responsibility for oversight of sales, business development and operations. In this role, she led Health New England in achieving its operating goals and expanding all lines of business.

Ms. McCaffrey joined Health New England in 2002 as a clinical pharmacist, and took on positions of increased responsibility as Director and then Vice President of Pharmacy and Service Operations. In 2006, she was appointed Vice President of Marketing, Business Development and Medicare, responsible for business-development initiatives, such as launching the Medicare and Medicaid product lines. Prior to joining Health New England, Ms. McCaffrey held various roles at the top pharmaceutical manufacturer, Eli Lilly.

Recognized as an excellent communicator and solutions oriented leader, Ms. McCaffrey is active and influential in the industry. She sits on several boards, including the Board of Directors for the Massachusetts Association of Health Plans, the national Health Plan Alliance, Western New England University and the Pioneer Valley United Way. She is a member of the Baystate Health President’s Cabinet, Associated Health Insurance Plans, the Academy of Managed Care Pharmacists, and participates with Link to Libraries. Ms. McCaffrey was recognized in Bay Path University’s Women Business Leaders Hall of Fame in 2015 and was named 2014 Business Woman of the Year by the Western Massachusetts Women’s Magazine. She is also proud to be a 2014 Go Red Leading Lady for the American Heart Association.

Ms. McCaffrey earned her Bachelor of Science in Pharmaceutical Sciences from the University of Rhode Island, where she was a recipient of the Rho Chi National Honor Society Award, and her Master of Business Administration with a major in Healthcare Administration from Anna Maria College. She has participated in Executive Education programs at the Wharton School at the University of Pennsylvania and Babson College in Massachusetts, where she has also served as a mentor in the Babson Executive Women’s Leadership MBA program.

Nancy Shendell-Falik, RN, MA

President, Baystate Medical Center
Senior Vice President of Hospital Operations, Baystate Health

Nancy Shendell-Falik is responsible for the coordination and integration of clinical operations across Baystate Health hospitals ensuring operational efficiency and sustainability of the Baystate Health enterprise. She provides leadership for the development of a comprehensive operating strategy within the academic center, Baystate Medical Center, and the community hospitals with a focus on care delivery, growth, financial performance, development of the leadership team, building a rewarding work environment and patient satisfaction. Ms. Shendell-Falik collaborates with senior leaders to align the strategy of the hospital and specialty enterprise to advance population health and ensure appropriate deployment of specialty resources to optimize safety, quality, experience and value. Additionally, Ms. Shendell-Falik partners with physician and administrative leaders to advance Baystate Medical Center as a regional tertiary care center. She champions a culture of safety, service excellence, and team member engagement to deliver safe, high quality outcomes and patient-centered experiences across the Baystate Health system. Baystate Health has 12,500 employees and is national leader in quality improvement and patient safety.

Previously, Ms. Shendell-Falik held the position of Senior Vice President/Chief Operating Officer and Chief Nursing Officer from 2013-2015. In addition to her accountability for effective leadership and management of the delivery of health care services at Baystate Medical Center, Ms. Shendell-Falik was responsible for the practice of nursing at Baystate Medical Center, the development of nursing services and the evaluation and implementation of clinical programs and services in collaboration with medical staff and management. She delivered leadership direction for all aspects of nursing, particularly service excellence, patient safety and quality initiatives. Ms. Shendell-Falik also provided system-wide oversight, support and advocacy for the professional practice of nursing at three community hospitals in Greenfield, Palmer, and Ware. In 2015, under her leadership, Baystate Medical Center earned a rare third designation as a Magnet Hospital for nursing excellence by the American Nurses Credentialing Center.

From 2009-2013, Ms. Shendell-Falik served as the Senior Vice President, Patient Care Services and Chief Nursing Officer at Tufts Medical Center in Boston and formerly was Senior Vice President, Patient Care Services at Newark Beth Israel Medical Center in Newark, NJ.

Ms. Shendell-Falik has more than 25 years of experience in driving improvements in quality and safety of patient care, volume growth, hospital efficiencies and patient and staff engagement. She has authored multiple publications and received the Governor’s Nursing Merit Award, New Jersey Organization of Nurse Executives Nurse Executive Award, and Executive Women of NJ Salute to the Policy Maker Award.

Ms. Shendell-Falik earned a bachelor’s degree in nursing from Rutgers College and a master’s degree in nursing administration from New York University. She is a Fellow of Robert Wood Johnson Executive Nurse Program, an advanced leadership program for nurses in senior executive roles who aspire to help lead and shape the US healthcare system.

Paula C. Squires, MBA, SPHR

Senior Vice President, Chief Human Resources Officer

As Senior Vice President, Chief Human Resources Officer at Baystate Health, Paula is helping Baystate Health to be an Employer of Choice, and oversees human resources functions for the organization's 12,500 employees.

Prior to joining Baystate Health in February 2006, Ms. Squires was Vice President for Human Resources at Maine Medical Center in Portland, ME since 1999. She has extensive experience in health care human resources management, having worked at Brigham and Women’s Hospital, Harvard Community Health Plan, the Massachusetts Eye and Ear Infirmary, and South Shore Hospital.

Ms. Squires earned her bachelor's degree from Bridgewater State College, Bridgewater, Massachusetts. She earned her Masters in Business Administration from Boston University. She has also earned her status as a Senior Professional in Human Resources (SPHR) from the Human Resources Certification Institute (HRCI).


Stephen J. Sweet, MD

Chief Executive Officer, Baycare Health Partners

As Chief Executive Officer of Baycare Health Partners, Stephen J. Sweet, MD oversees a Physician-Hospital Organization owned jointly by Baystate Health and Greater Springfield IPA.

He is a practicing nephrologist, President of Western New England Renal & Transplant Associates and Medical Director of Fresenius Medical Care Dialysis Units of the Greater Pioneer Valley. Dr. Sweet is an Associate Clinical Professor of Medicine at Tufts University School of Medicine.

Dr. Sweet earned his medical degree and completed his residency training at the University of Michigan , Ann Arbor, Michigan followed by a renal fellowship at Tufts New England Medical Center in Boston, MA . Board certified in internal medicine and nephrology, Dr. Sweet remains actively engaged in clinical practice and lectures on a variety of renal and health care topics.