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Aetna Leadership

Meet the Aetna executives who are helping to transform health care locally, nationally and around the globe

Executive biographies

Mark T. Bertolini

Mark T. Bertolini

Chairman and Chief Executive Officer of Aetna

Mark T. Bertolini is Chairman and Chief Executive Officer of Aetna Inc., a Fortune 50 diversified health care benefits company with over $63 billion in 2016 revenue.  Aetna serves an estimated 44.6 million people with information and resources to help them make better informed decisions about their health care and has operations in North America, Asia, Europe and the Middle East.  Mr. Bertolini assumed the role of CEO on November 29, 2010 and of Chairman on April 8, 2011.

Mr. Bertolini joined Aetna in 2003 as head of Aetna’s Specialty Products.  From July 2007 to December 2014, he served as president, responsible for all of Aetna’s businesses and operations across the company’s broad range of health care products and related services – including medical, pharmacy, dental, behavioral health, group life and disability plans, as well as medical management capabilities and health care management services for Medicaid plans.  Prior to serving as Aetna’s president, Mr. Bertolini was executive vice president and head of Aetna’s regional businesses, which included the company’s individual, retiree, small group and middle market segments, as well as numerous product, network and service areas.

In 2017, Mr. Bertolini was recognized in the top eight of Modern Healthcare’s 100 Most Influential People in Healthcare for his efforts to promote measures that increase access, lower costs and improve quality.  He meets regularly with state and federal policymakers to further these efforts and share Aetna’s vision for a consumer-centric healthcare system.  Mr. Bertolini has also been recognized as a leader in corporate social responsibility and received the 2017 Peter G. Peterson Business Statesmanship Award, which is the Committee for Economic Development’s highest honor for corporate executives who champion issues in the public interest and hold themselves to the highest standard of ethics and integrity.

Mr. Bertolini serves as a director of Verizon Communications Inc. (communications and technology solutions), Massachusetts Mutual Life Insurance Company (insurance and investment products), Thrive Global (sustainable, science-based solutions to enhance well-being, performance and purpose), the FIDELCO Guide Dog Foundation (non-profit organization that breeds, trains and places German Shepherd guide dogs with people who have visual disabilities) and The Mind and Life Institute (non-profit institution dedicated to building a scientific understanding of the mind in order to reduce suffering and promote well-being).

In 2009, he was elected the first straight ally board member of the National Gay and Lesbian Chamber of Commerce.  Mr. Bertolini has been honored for his leadership by numerous universities and organizations, including the National Italian American Foundation, Outward Bound, the National Kidney Registry, Out & Equal Workplace Advocates, the Quinnipiac University Business School, and Wayne State University School of Business.

Prior to joining Aetna, Mr. Bertolini held executive positions at Cigna, NYLCare Health Plans, and SelectCare, Inc., where he served as president and chief executive officer.

Born and raised in Detroit, Mr. Bertolini held various jobs throughout high school and college, including assembly work at a Ford Motor Company plant and various caregiver roles in health care delivery.  Mr. Bertolini is a spinal cord injury survivor and is partially disabled as the result of a severe skiing accident in 2004.  In 2007, Mr. Bertolini donated a kidney to his son.  His previous work and personal experiences with the health care system are foundational to his dedication to improving the patient experience and addressing the longstanding challenges facing the U.S. health care system.

Mr. Bertolini holds an undergraduate degree in business administration/finance from Wayne State University and a MBA in finance from Cornell University.  In 2017 Mr. Bertolini received an honorary Doctor of Laws from Wayne State University for his distinguished health care career and outstanding philanthropic leadership.

Karen S. Lynch

Karen S. Lynch


Karen S. Lynch (formerly Rohan) is President of Aetna, a Fortune 50 diversified health care benefits company. She is responsible for driving the strategic execution of Aetna’s vision through her leadership of the company’s commercial, government and specialty businesses, representing 95 percent of Aetna’s revenues. Ms. Lynch assumed the role of President in January 2015. She is the first woman to serve in the role in the company’s 164-year history.

Ms. Lynch joined Aetna in 2012 as executive vice president and head of Specialty Products. In 2013, she assumed management of Local and Regional Businesses, a combined business unit dedicated to serving the varied health care needs of individuals and employers. Ms. Lynch successfully led Aetna’s integration efforts for its 2013 acquisition of Coventry Health Care.

Ms. Lynch has nearly three decades of experience in the health care industry. Prior to joining Aetna, she held executive positions at Cigna and Magellan Health Services, where she served as president. Ms. Lynch began her career with Ernst & Young as a Certified Public Accountant (CPA).

Ms. Lynch was named to Fortune’s 2016 and 2017 lists of the 50 Most Powerful Women in Business for her leadership and contributions to improving the health care system. She was also recognized by Modern Healthcare as one of the 2017 Top 25 Women in Healthcare, highlighting her role in transforming health care delivery across the country.

Ms. Lynch serves as a director of U.S. Bancorp; a trustee of The Bushnell Performing Arts Center;and is a member of the Global 50 and the Boston College Women’s Council. She is also an advisory board member of NEADS/Dogs for Deaf and Disabled Americans, a nonprofit organization that provides independence to people through canine assistance. Ms. Lynch served for three consecutive years as Honorary Chair of the Komen Connecticut Race for the Cure, and she is a past advisory board member for the Boston office of Ernst & Young.

Ms. Lynch has been recognized for her leadership by numerous organizations and publications, including the National Association for Specialty Health Organizations, Business Insurance, the Stevie® Awards for Women in Business, and Insurance Networking News. In 2011, Ms. Lynch co-chaired the Health Care and Pharmaceutical Task Force for the Wall Street Journal Women in the Economy Conference. 

Ms. Lynch earned her bachelor's degree in accounting from Boston College and an MBA from Boston University. In 2015, she was presented with an honorary doctorate degree of humane letters from Becker College in Worcester, MA.

Richard di Benedetto

Richard di Benedetto

Executive Vice President
Aetna International

Richard di Benedetto was appointed as President, Aetna International, in 2013.  Aetna International is one of the world’s largest health benefits businesses, serving nearly 900,000 members living and working in nearly every country in the world.  Under Richard’s leadership, Aetna International’s goal is to become the global leader in delivering world-class health care and wellness solutions, making quality health care more accessible and empowering people to live healthier lives.  

In 2014, Richard successfully led the acquisition and subsequent integration of InterGlobal, which significantly expanded Aetna’s global reach and brought valuable service expertise to the business.  Richard has also been instrumental in collaborating with health care systems, government entities and plan sponsors worldwide to design locally appropriate solutions and develop new products to improve health, increase quality and drive cost effectiveness.  Since 2015, the company has significantly expanded its presence in the Middle East and South East Asia, most recently with the acquisition of Bupa Thailand.

Prior to joining Aetna International, Richard spent three years as Chief Executive Officer at Euromedic International, one of the largest private equity owned European providers of diagnostic services, laboratories and cancer treatment.  In this role he successfully oversaw the transformation of the company, with a focus on organic growth and revenue diversification in priority countries.

Richard previously spent 15 years with GE Healthcare in a number of senior leadership roles, latterly as President and Chief Executive Officer of their Eastern and Africa Growth Markets.  Based in Istanbul, he was responsible for expanding the footprint of GE Healthcare in Africa and the Middle East and for developing regionalized services and product offerings.   

Richard holds a master’s degree in economics from the Institut d’Etudes Politiques in Paris and began his career with the Econocom Group SA based in France and Germany.

Shawn M. Guertin

Shawn M. Guertin

Executive Vice President
Chief Financial Officer and Chief Enterprise Risk Officer

Shawn M. Guertin is Executive Vice President, Chief Financial Officer and Chief Enterprise Risk Officer of Aetna; a Fortune 50 diversified health care benefits company with over $60 billion in revenue.  Mr. Guertin is responsible for financial reporting, investor relations, mergers and acquisitions, treasury and capital planning, actuarial, risk management, tax, budgeting and planning, and procurement.  He is a member of Aetna’s Executive Leadership Team, the senior governing body of the company, reporting directly to Aetna’s Chairman and CEO Mark T. Bertolini. 

Mr. Guertin has been recognized by Institutional Investor Magazine’s 2018 All-American Executive Team survey as the number one Chief Financial Officer by sell-side analysts and the number two Chief Financial Officer overall by sell-side and buy-side analysts in the Healthcare Facilities and Managed Care sector.

Prior to joining Aetna in 2011, Mr. Guertin served as Executive Vice President, Chief Financial Officer and Treasurer of Coventry Health Care Inc. During his career with Coventry, he was also the Chief Actuary.  Mr. Guertin’s previous experience includes leadership roles at United HealthCare and Travelers.

Mr. Guertin graduated summa cum laude with distinction from Boston University where he received his Bachelor of Arts degree in Mathematics. He is a fellow of the Society of Actuaries, and a member of the American Academy of Actuaries.


Shawn M. Guertin

Rick M. Jelinek

Executive Vice President
Head of Enterprise Strategy and Integration

Rick Jelinek, Executive Vice President, leads Aetna’s Enterprise Strategy group.  Mr. Jelinek is responsible for leading critical enterprise and customer and business initiatives that enable and advance Aetna’s strategy. In addition, he is leading the integration efforts related to the CVS and Aetna transaction with focus on driving growth and transforming the healthcare experience for consumers. Previously, Mr. Jelinek was also the Head of Markets, where he connected all product and health service strategies at the local market level. Mr. Jelinek is a member of the Executive Leadership Team, the senior governing body of the company.

Prior to joining Aetna, Mr. Jelinek was an operating partner at Boston-based Advent International focused on domestic and international health care investments for the firm.  Before his role at Advent, Mr. Jelinek served as CEO of OptumHealth, part of the Minnesota-based UnitedHealth Group.  In his 19 years at UnitedHealth, he oversaw several divisions as CEO, including the company's emerging businesses group, population health management, Senior and Retiree services and Medicaid operations.

He also has an extensive background on the provider side. Mr. Jelinek is a past board member of Sutter Health, was the CEO of Optum's care delivery business and held successive management and leadership roles at Henry Ford Health System and North Shore University Health System. 

Mr. Jelinek holds a master’s degree in health services administration and an MBA from the University of Michigan, as well as a bachelor’s degree in business administration from the University of Southern California.

Steven B. Kelmar

Steven B. Kelmar

Executive Vice President
Corporate Affairs
Chief of Staff to Aetna's Chairman

Steven Kelmar is Executive Vice President, Corporate Affairs, and also serves as Chief of Staff to Aetna’s Chairman and CEO Mark T. Bertolini.  In this role, he runs the governance of Aetna’s Executive Leadership Team and plays a major role in driving the company’s strategy.  Additionally, he works closely with Aetna's Board of Directors and serves on Aetna’s Executive Leadership Team.  Mr. Kelmar also has responsibility for Aetna’s Government Relations and Enterprise Communications teams, as well as the Aetna Foundation.

Previously, Mr. Kelmar was head of Global Public Affairs and Policy for both Merck and Co. and Novartis AG, responsible for setting and driving the public affairs and policy strategies.  At Novartis, Mr. Kelmar, directly reported to the CEO and Chairman and served on the executive committee.  He worked on health care market issues across the globe, with special emphasis on developing markets in Asia and Africa.  He was also Senior Vice President, External Relations for Medtronic Inc., reporting to the Chairman and CEO and served on the executive committee.  He took on additional responsibilities for corporate strategy and ran its first e-solution team.  He also played a major role in starting up the Global Health Exchange and served on its Board of Directors.

In public service, Mr. Kelmar was appointed by President George H. W. Bush to be Assistant Secretary at the U.S. Department of Health and Human Services, serving as one of the federal government's chief policymakers surrounding health care delivery systems.  He also served as Chief of Staff to two members of the U.S. Congress and worked in several other legislative capacities in Congress.

Mr. Kelmar received his Bachelor of Arts in Public Administration and Economics from Pennsylvania State University, and received the University's Outstanding Alumni award.  He serves on the Board of the Touch Foundation, which is dedicated to building health care capacity in Africa.  He and his wife Patricia have three children.

Meg McCarthy

Meg McCarthy

Executive Vice President, Operations and Technology

Meg McCarthy is Executive Vice President, Operations and Technology. She is responsible for information technology, global security, procurement, travel and real estate services for Aetna. She is a member of Aetna’s Executive Committee, the senior governing body of the company, reporting directly to Aetna's Chairman and CEO Mark T. Bertolini. 

Ms. McCarthy has served as Chief Information Officer and Vice President and Head of Business Solutions Delivery at Aetna, where she was responsible for the delivery and production support of information technology and business process improvement initiatives.  

Prior to joining Aetna in 2003, Ms. McCarthy was Senior Vice President of Information Technology at CIGNA Healthcare and served as Chief Information Officer at Catholic Health Initiatives and Franciscan Health System. Ms. McCarthy also worked in technology consulting at Andersen Consulting (Accenture) and was a consulting partner at Ernst & Young.

Ms. McCarthy has been recognized as one of Insurance & Technology Magazine's “Elite 8” and Computerworld’s Top 100 leaders. She serves on the board of directors of the Financial Services Information Sharing and Analysis Center (FS-ISAC), First American Financial Corporation, vArmour and the Providence College Board of Trustees. In addition, Ms. McCarthy represents Aetna on the Council on Affordable Quality Healthcare (CAQH) where she serves on the executive, finance and nominating committees and she also sits on the World Economic Forum Gender Parity Council.

Ms. McCarthy holds a bachelor's degree from Providence College and a master’s degree in public health, hospital administration, from Yale University. Her military experience includes U.S. Navy Medical Services Corps, Lieutenant at Bethesda Naval Hospital, and U.S. Navy Reserves, Lieutenant Commander.

Harold L. Paz, M.D., M.S.

Harold L. Paz, M.D., M.S.

Executive Vice President and Chief Medical Officer

Harold L. Paz, M.D., M.S., is executive vice president and chief medical officer for Aetna. He leads clinical strategy and policy at the intersection of all of Aetna’s domestic and global businesses. He is responsible for driving clinical innovation to improve member experience, quality and cost in all areas of the health care delivery system.  Reporting to Aetna’s Chairman and CEO, he is a member of the company’s executive leadership team.

Before joining Aetna in 2014, Dr. Paz served as chief executive officer of Penn State Hershey Medical Center and Health System, senior vice president for Health Affairs for Penn State University, dean of its College of Medicine and professor of medicine and public health sciences for eight years. His vision for health care transformation at Penn State led to the formation of an integrated healthcare system of four hospitals, 64 ambulatory care practices and 18 affiliated hospitals focused on population health across central Pennsylvania. Prior to his appointment to Penn State, he spent 11 years as dean of the Robert Wood Johnson Medical School and chief executive officer of Robert Wood Johnson University Medical Group, the largest multispecialty group practice in New Jersey where he was professor of medicine.

Dr. Paz has focused his research and teaching on clinical outcomes, health care effectiveness and personalized health.  A pioneer in the field of quality management, Dr. Paz was among the first to study clinical outcomes in the intensive care unit. From this early work, he recognized the need to formally train physicians in quality, and in 1993 he started the first fellowship of its kind in quality management.  Currently, he is professor adjunct of internal medicine at Yale University School of Medicine and remains clinically active in pulmonary medicine at the West Haven Veterans Administration Hospital. He serves on the National Academy of Medicine (NAM) Leadership Consortium and the NAM Roundtable on Quality Care for People with Advanced Illness.

A fellow of the American College of Physicians and the American College of Chest Physicians, Dr. Paz is currently on the boards of Select Medical Corporation, United Surgical Partners International, Research!America and the National Health Council. Dr. Paz is past chair of the Board of Directors of the Association of Academic Health Centers and a former member of the Association of American Medical Colleges (AAMC) and the University Health System Consortium boards of directors. He previously was chair of the AAMC Council of Deans administrative board and has served on the AAMC executive council, in addition to corporate and scientific advisory boards in the biotechnology field. He has authored over 100 publications, including peer-reviewed research and quality articles, chapters, commentaries and abstracts. He is the recipient of numerous awards and an honorary degree. 

Dr. Paz received his bachelor's degree from the University of Rochester, a master of science in life science engineering from Tufts University, and his medical degree from the University of Rochester School of Medicine and Dentistry. He completed his residency at Northwestern University, where he served as chief medical resident and instructor in clinical medicine. He was a Eudowood Fellow in pulmonary and critical care medicine at Johns Hopkins Medical School. In addition, he was a post-doctoral fellow in environmental health science at Johns Hopkins School of Hygiene and Public Health.

Thomas J. Sabatino, Jr.

Thomas J. Sabatino, Jr.

Executive Vice President and General Counsel
Law & Regulatory Affairs

Thomas J. Sabatino, Jr., is Executive Vice President and General Counsel, reporting to the company’s Chairman and CEO Mark T. Bertolini.  He is the Chief Legal Officer of the company with worldwide responsibility for leading its legal operations, including formulating corporate legal policy.  In addition, he oversees the Corporate Secretary and Compliance functions.  He is a member of the Executive Leadership Team, the senior governing body of the company.

Mr. Sabatino joined Aetna from Hertz Global Holdings, Inc., where he served as Senior Executive Vice President, Chief Administrative Officer and General Counsel.  He joined Hertz in 2015 after serving as Executive Vice President, Global Legal and Chief Administrative Officer of Walgreens Boots Alliance. Previously, in 2010, Mr. Sabatino was Senior Vice President and General Counsel of UAL Corporation and United Airlines, Inc., and was Executive Vice President and General Counsel of Schering-Plough Corporation from 2004 through 2009.  He also has held General Counsel positions at Baxter International and American Medical International.

Mr. Sabatino has received numerous awards from his peers, including Inside Counsel’s Transformative Leader Award (2012), the National Bar Association Gertrude E. Rush Award (2013) and the Equal Justice Works Scales of Justice Award (2014).  In addition, the Women’s In-House Counsel Leadership Institute created the Sabatino Advocacy Award in his honor in 2016. 

He serves on the Board of Overseers for the University of Pennsylvania Law School, the Board of Directors of Equal Justice Works and the Board of Directors of the International Institute for Conflict Prevention and Resolution.

Mr. Sabatino earned his law degree from the University of Pennsylvania and his undergraduate degree from Wesleyan University in Connecticut.

Fran S. Soistman

Fran S. Soistman

Executive Vice President
Head of Government Services

Fran Soistman is Executive Vice President of Aetna and President of the Government Services segment. He is responsible for driving growth in the company’s Medicare, Medicaid and Federal Employees Health Benefits Program businesses. These combined businesses accounted for approximately $28 billion, or 46%, of Aetna’s 2017 total revenue.

Mr. Soistman, who joined Aetna in 2013, has more than 35 years of experience in health insurance and managed care. Prior to joining Aetna, he was Executive Vice President, Chief Operating Officer and co-founder of Jessamine Healthcare, a firm focused on strategic investment opportunities in the health care industry. Before his tenure at Jessamine, Mr. Soistman held several senior leadership positions at Coventry Health Care, including Executive Vice President for the Individual Consumer and Government Business Division. In this role, he was responsible for the company’s individual Medicare Advantage, Medicare Part D, Medicaid and commercial individual products, which served more than 2.5 million members across the United States.

Mr. Soistman received his Bachelor’s Degree from Towson University and is a graduate of the Stanford University Executive Program. He has been honored with the Ernst & Young Entrepreneur of the Year award in the Healthcare Technology/Services category, the Towson University Distinguished Alumni Award and a Doctor of Humane Letters.

Mr. Soistman has served on multiple higher education boards throughout the past 25 years, including a 10-year term on the Penn State University Presidential Leadership Board of Directors. Currently, he serves on the Towson University Board of Visitors as Chairman, the University System of Maryland Foundation Board of Directors and the Finca Vigía Foundation Board of Directors. In addition, Mr. Soistman represents Aetna on the Healthcare Leadership Council serving on the Executive Committee, the Healthcare Transformation Task Force serving as Board Chairman, and the Harvard Medical School Department of Health Care Policy Scientific Advisory Board.

Fran S. Soistman

Thomas W. Weidenkopf

Executive Vice President
Chief Human Resources Officer

Tom Weidenkopf leads Aetna’s global human resources function reporting to Chairman and CEO Mark Bertolini and is a member of the Executive Leadership Team, the senior governing body of the company.

Mr. Weidenkopf joined Aetna in September 2015 from Aleris, a global manufacturing company in the downstream aluminum products industry where, since 2008, he served as Executive Vice President of Human Resources and Communications.  Prior to Aleris, Mr. Weidenkopf spent twelve years at Honeywell in a number of human resource executive roles including six years as Senior Vice President, Human Resources and Communications.  In this capacity, he was responsible for leading global human resources strategy, policy and programs for the company’s 120,000 employees in more than 100 countries.  His early career includes human resource leadership roles at Pepsico and General Electric.

Mr. Weidenkopf holds a Bachelor’s Degree from Cornell University’s School of Industrial and Labor Relations. He resides in New York City with his wife Becky, a professional photographer and their two German Shepherds.  He has two adult children, Jack and Sam.  

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