Executives

Stephen J. Hemsley

President and Chief Executive Officer
UnitedHealth Group

Stephen Hemsley was named chief executive officer and president, UnitedHealth Group, on Nov. 30, 2006. He had previously served as president and chief operating officer, UnitedHealth Group, and is a member of the company’s board of directors. Hemsley joined the company in June 1997.

Gail K. Boudreaux

Executive Vice President
UnitedHealth Group

Chief Executive Officer
UnitedHealthcare

Gail Boudreaux assumed overall responsibility for the four benefits businesses that comprise UnitedHealthcare in 2011. She joined UnitedHealth Group in May 2008 as an executive vice president and as president of UnitedHealthcare. Boudreaux was formerly executive vice president of Health Care Services Corporation (HCSC) and prior to that served as president of Blue Cross and Blue Shield of Illinois, a division of HCSC. Before joining HCSC she held various positions at Aetna, including senior vice president of Aetna Group Insurance and vice president of Customer Service.

Larry C. Renfro

Executive Vice President
UnitedHealth Group

Chief Executive Officer
Optum

Larry Renfro is chief executive officer of Optum, UnitedHealth Group's health services platform, overseeing OptumInsight, OptumHealth and OptumRx. Renfro joined the company in January 2009 and has served as chief executive officer Public and Senior Markets Group and worked in the office of the CEO at UnitedHealth Group coordinating projects in new areas of growth and development.

Renfro was formerly a senior executive officer at Fidelity Investments and a member of the Fidelity Executive Committee. He was president and chief executive officer of AARP Services, Inc., before he rejoined Fidelity in 2008. Renfro has also held senior executive positions at NewRiver, Inc.; State Street Bank & Trust; and Allmerica Financial.

Edson Bueno, M.D.

Chief Executive Officer
Amil

Director
UnitedHealth Group

Edson Bueno, M.D., is the founder and chief executive officer of Amil, which became a subsidiary of UnitedHealth Group in October 2012. Founded in 1978, Amil is the largest health care organization in Brazil, currently assisting more than 5 million people. Dr. Bueno holds a medical degree from the Federal University of Rio de Janeiro, with specialization in general surgery. He has attended courses in the Business Administration program at the Pontifical Catholic University of Rio de Janeiro and management programs at Harvard Business School. He joined UnitedHealth Group's board of directors on October 29, 2012.

David S. Wichmann

Executive Vice President and Chief Financial Officer
UnitedHealth Group

President
UnitedHealth Group Operations

David Wichmann assumed the position of chief financial officer of the enterprise in 2011, while retaining his existing roles and responsibilities as president, UnitedHealth Group Operations and Technology. He also assists in the oversight of UnitedHealth Group corporate functions, including the company's international efforts. In May 2008, Wichmann was named president of UnitedHealth Group Operations and he has served as executive vice president of the enterprise since 2006. He previously held positions as president, UnitedHealthcare; president and chief executive officer, Specialized Care Services (now OptumHealth); and senior vice president, Corporate Development. Prior to joining UnitedHealth Group in 1998, Wichmann was a partner with Arthur Andersen.

Marianne D. Short

Executive Vice President and Chief Legal Officer
UnitedHealth Group

Marianne D. Short was appointed executive vice president and chief legal officer of UnitedHealth Group in January 2013. She is responsible for overseeing legal, regulatory and compliance matters across the enterprise. Prior to joining the company, Short was the managing partner at Dorsey & Whitney LLP for six years, a partner in the Trial department, co-chair of the firm’s Appellate and Health Litigation practice groups and a member of the American College of Trial Lawyers and the American Academy of Appellate Lawyers. From 1988-2000, she was a judge on the Minnesota Court of Appeals, authoring more than 900 opinions in virtually every area of civil and criminal law. She has more than 35 years of courtroom experiences from her work on the court, the Dorsey firm and the Minnesota Attorney General’s Office.  

William A. Munsell

Executive Vice President
UnitedHealth Group

William Munsell joined the Office of the CEO in 2011 to apply the depth of his leadership experience and expertise more broadly to the oversight of the company at the enterprise level, while continuing his engagement in the strategy related to our health services agenda and increasing his direct involvement in corporate development activities. Beginning in 2007, Munsell became president of the Enterprise Services Group (now Health Services), which includes OptumHealth, Ingenix and Prescription Solutions. He was appointed executive vice president, UnitedHealth Group, in December 2006. Previously, Munsell held the positions of chief executive officer, Specialized Care Services (now OptumHealth), and chief administrative officer, UnitedHealthcare. He joined UnitedHealth Group in 1997 and brings more than 25 years of experience in operations, finance, treasury, executive management and business processes to the company.

Anthony Welters

Executive Vice President
UnitedHealth Group

In 2011, Anthony Welters, joined the Office of the CEO to focus more closely at the enterprise level on public, governmental and political positioning and image, matters of reputational interest or impact, special regulatory matters, and oversight and alignment of brand, reputation and market engagement activities. In September 2007, Anthony Welters was named president and chief executive officer of the Public and Senior Markets Group, which included the businesses serving government-sponsored health programs, now known as UnitedHealthcare Medicare & Retirement and UnitedHealthcare Community & State. He was appointed executive vice president, UnitedHealth Group, in December 2006. Welters had previously been president and chief executive officer of AmeriChoice, which was acquired by UnitedHealth Group in 2002. Mr. Welters founded AmeriChoice in 1989. Prior to his role with AmeriChoice, Welters held a number of senior positions in the federal government and in private industry.

Eric S. Rangen

Senior Vice President and Chief Accounting Officer
UnitedHealth Group

Eric Rangen was elected senior vice president and chief accounting officer in December 2006. Prior to joining UnitedHealth Group, Rangen was executive vice president, chief financial officer and also served as principal accounting officer at Alliant Techsystems.

Jeannine M. Rivet

Executive Vice President
UnitedHealth Group

Jeannine Rivet was named executive vice president, UnitedHealth Group, in January 2001, and currently works with all company business segments in areas focused on strategic and business relationship management, customer and public relations, and nursing advancement. She has served as chief executive officer and president, Optum (now part of OptumHealth), chief executive officer, Ingenix, and chief executive officer, UnitedHealthcare. Before joining UnitedHealth Group, Rivet served as vice president, Group Operations, The Prudential Insurance Company of America.

D. Ellen Wilson

Executive Vice President, Human Capital
UnitedHealth Group

Ellen Wilson was appointed executive vice president, Human Capital, UnitedHealth Group in June 2013 and is responsible for overseeing all aspects of human resources, including compensation and benefits, talent management, leadership and employee development, rewards and recognition and organization development.  Previously, she served as chief administrative officer for Optum, guiding Optum’s mission-critical business alignment and cultural programs.  Prior to joining Optum, Wilson served for 17 years at Fidelity Investments, concluding her tenure there as head of Human Resources.

Richard Migliori, M.D.

Executive Vice President, Medical Affairs and Chief Medical Officer
UnitedHealth Group

In 2013, Dr. Richard Migliori was appointed executive vice president, Medical Affairs, and chief  medical officer for UnitedHealth Group, working with businesses across the enterprise to help improve health care quality, access and affordability. Previously, as executive vice president for Health Services, Dr. Migliori was responsible for the ongoing development, design, and adaptation of market leading clinical innovations aimed at ensuring clinical excellence, improving clinical and economic outcomes, and delivering robust business performance on behalf of UnitedHealth Group’s largest public and private sector clients.

Cory B. Alexander

Executive Vice President, External Affairs
UnitedHealth Group

Cory Alexander joined UnitedHealth Group in 2009 and oversees a number of key functions across the enterprise: government and public affairs, international relations, United Health Foundation and social responsibility efforts, the Center for Health Reform and Modernization and Enterprise Government Solutions and Strategic Relationships Development. From 2006 to 2008, Alexander was vice president of Government and Industry Relations for Fannie Mae and previously worked as chief of staff for House Democratic Whip Steny Hoyer (D-MD).

John S. Penshorn

Senior Vice President, Capital Markets Communications and Strategy
UnitedHealth Group

John Penshorn, senior vice president, has managed UnitedHealth Group’s capital markets relationships since December 1998. Previously, Penshorn followed health services equities as a stock analyst at Piper Jaffray.

Terry Clark

Senior Vice President, Brand & Marketing
UnitedHealth Group

Terry Clark oversees and coordinates UnitedHealthcare and Optum branding, marketing and advertising efforts on a functional basis enterprisewide. He also has direct responsibility for direct-to-consumer marketing for UnitedHealthcare Medicare & Retirement, the nation’s largest business dedicated to the health and well-being needs of seniors and other Medicare beneficiaries. Clark joined UnitedHealthcare in 2006 from InterActiveCorp (IAC), a consumer technology company comprised of leading digital brands, where he last served as executive vice president of sales and marketing for the company’s Entertainment Publications division.

Don Nathan

Senior Vice President and Chief Communications Officer
UnitedHealth Group

Don Nathan joined UnitedHealth Group as senior vice president, chief communications officer, effective May 28, 2007. He is responsible for all internal and external communications. Nathan was formerly a strategic communications consultant with Robinson Lerer & Montgomery (now RLM Finsbury), beginning in 1991, and was a partner at the firm for 10 years. Previously, Nathan worked on Capitol Hill in Washington, D.C., serving in a number of congressional and campaign capacities.