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Meet our team

Wyatt W. Decker, MD, MBA, Chief Executive Officer, Optum Health headshot

Wyatt Decker, MD, MBA, joined Optum in 2019. In his role as chief executive officer of Optum Health, Dr. Decker oversees the care delivery and ambulatory care capabilities of Optum Care, as well as major platforms serving Behavioral Health, Population Health, Complex Care and consumer offerings at Optum. He is leveraging the full value of Optum's distinctive assets in data, analytics, technology and clinical expertise to improve the health outcomes and experiences for the millions of people receiving care in local care systems and everywhere Optum serves consumers and patients.

Prior to joining Optum, Dr. Decker served for more than two decades at Mayo Clinic, one of the largest not-for-profit, academic health systems in the U.S. He most recently held the dual role of chief medical information officer for Mayo Clinic, and CEO of Mayo Clinic in Arizona. At Mayo Clinic, Dr. Decker pioneered the use of innovative digital technologies, including telemedicine and AI, to deliver health care expertise to affiliated care providers nationwide, as well as leading the digital strategy around engaging and empowering patients.

Under his leadership, Mayo Clinic in Arizona was named the number one safest teaching hospital in the U.S., the number one hospital in Arizona by U.S. News and World Report, and achieved the highest possible CMS ratings for both patient quality and patient experience. He oversaw the launch of the Mayo Clinic Alix School of Medicine’s Arizona campus, and the building of an advanced, National Cancer Institute-designated Cancer Center.

Dr. Decker also has served as a Professor of Emergency Medicine at the Mayo Clinic College of Medicine, and directed the Emergency Medicine Residency Training program at Mayo Clinic.

Dr. Decker holds an MD from Mayo Clinic Alix School of Medicine and an MBA from Kellogg School of Management, Northwestern University and a Bachelor of Science from University of California, Santa Cruz.

Paul Balthazor was named chief operating officer of Optum Care in June of 2018. His organization leads the National Core Operations team including technology, business integration, real estate, supply chain, credentialing and contract management, revenue cycle and operations.

Balthazor began his career with Optum in 2002 as part of the American Chiropractic Network (ACN) Group where he served as the CFO and later, the chief operating officer.  

In May 2007, Balthazor joined UHC Community & State where he served in a number of finance, operational and network leadership roles, including chief financial officer.

Most recently, he held the position of chief operating officer.  Prior to joining UnitedHealth Group, Balthazor worked for Arthur Andersen, providing merger and acquisition advisory services to many clients, including UnitedHealth Group.

Balthazor is a graduate of St. John’s University in Minnesota, where he obtained degrees in accounting and management.

Daniel Frank, MD, Chief Medical Officer, Optum Care, headshot

Dr. Daniel Frank was named chief medical officer of Optum Care in 2019, expanding his most recent role as chief clinical officer of the organization’s clinical performance and affordability teams. Leading our clinical functions, he is responsible for partnering with our local care delivery systems across the nation to advance clinical initiatives, foster an exceptional provider experience, improve patient outcomes and transform the way we deliver care.

In support of this differentiated experience for more than 40,000 providers and the millions of patients we serve, he also oversees the Office of Provider Advancement, chairs the Clinical Leadership Congress, and serves on the Physician Executive Council. In addition, he is an executive board member of the Center for Clinician Advancement at UnitedHealth Group. Through these governance bodies and partnerships, he upholds our commitment to ensure our care delivery capabilities are developed in a highly collaborative, physician-led environment.

Dr. Frank has long focused on the effective development and implementation of clinical priorities and related programs to achieve greater clinician and patient satisfaction, and high-quality, affordable health care. Prior to his role as CMO, he held a number of leadership positions within Optum Care including lead physician, local and national medical director roles focused on process improvement and quality initiatives, and chief clinical officer.

His career with Optum began in 2008 at Southwest Medical Associates in Las Vegas, Nevada, where he served as a primary care physician and medical director. Before joining Southwest Medical, he was in private practice in south Florida.

Originally from New York, Dr. Frank received his bachelor’s degree in microbiology at the University of Florida, and his medical degree from the University of Miami, Miller School of Medicine. He completed his residency in family practice at Jackson Memorial Hospital in Miami where he became board certified in Family Medicine. 

Selemon Asfaw is the Chief Financial Officer of Optum Care where he is responsible for leading the strategic financial direction for Optum’s Care Delivery, SCA and MedExpress businesses.

In addition to having fiscal responsibility for Optum Care, Selemon oversees risk-based financial arrangements across the Optum Health segment.

Prior to this role, Selemon was CFO of Optum Health’s Care Solutions and Health Services businesses and was a Vice President of Corporate Development leading M&A on behalf of Optum Health.

Earlier in his career, Selemon was an Investment Banker with Goldman, Sachs & Co. in the Healthcare Group in New York City, covering a range of clients in the sector.

Prior to Investment Banking, Selemon launched a series of entrepreneurship and leadership programs for underserved youth in North Minneapolis on behalf of the University of Minnesota. Selemon holds undergraduate and graduate degrees in Business.

Dewayne Ullsperger joined Optum Health in 2017, leading Actuarial and Healthcare Economics. Prior to this role, he served as the chief actuary for the commercial business and lead Healthcare Economics at UnitedHealthcare. Ullsperger was the principal and co-founder of Reden & Anders, which was acquired by UnitedHealth Group in 1998 after starting his career at Touche Ross.

Ullsperger graduated from the University of Nebraska-Lincoln and is a fellow of the Society of Actuaries and a member of the American Academy of Actuaries.

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Market leadership team

Imelda Dacones, MD, is the president of the Washington Optum Care market with oversight of The Everett Clinic, The Polyclinic and the Optum Care Network of Washington.

As a nationally recognized leader in driving value-based care innovation, Dr. Dacones is a long-time advocate of the Quadruple Aim. She also practiced as a primary care doctor and hospital-based internist for more than 22 years.

Dr. Dacones has been recognized many times as a doctor and leader. In 2020, she was named one of Modern Healthcare’s Top 25 Minority Leaders. In 2019, she received Portland Business Journal’s Health Care Leadership Award.

Prior to this role, Dr. Dacones served as president and chief executive officer of Northwest Permanente (NWP) and chair of the National Permanente Executive Committee.

In these roles, she had remarkable success in modernizing business functions, growing the KPNW footprint, improving margins, driving innovation, and fostering clinician and team member engagement.

Dr. Dacones received her undergraduate and medical degrees from the University of Chicago, where she also completed her internship and residency training in internal medicine.

Derek Chao, MD, President and CEO, Optum Pacific West headshot

Dr. Derek Chao is a physician, health care executive and national leader in value-based care. For 20+ years, he's been finding transformative ways to improve care quality, lower the total cost of care and help patients lead healthier lives.

In his current role, Dr. Chao oversees all Optum care delivery organizations in California, Oregon and Washington. Together, these organizations have 25,000 physicians and serve 2.6 million patients.

Dr. Chao works across Optum and UnitedHealth Group to make quality, affordable care available to patients and their communities. He ensures that patients, providers and team members have a positive experience. He also leads the Optum mission of shifting the nation to value-based care.

Most recently, Dr. Chao was the chief medical officer for Optum Pacific West, one of the nation's largest integrated care organizations. He led all clinical teams and programs as well as clinical strategy, quality, affordability, network strategy and more.

Before joining Optum, Dr. Chao held leadership roles at HealthCare Partners and DaVita Medical Group. He also practiced medicine as a hospitalist and nephrologist for 15 years.

Dr. Chao holds a bachelor’s degree in biochemistry and cellular biology from the University of California, San Diego, and a medical degree from Penn State. He is board certified in internal medicine and nephrology.

Tarek Elsawy, MD, President, Optum Northeast and Midwest headshot

As regional president of Optum Care, Dr. Elsawy oversees the operations and performance of health care delivery systems in the organization’s Northeast and Midwest regions.

Dr. Elsawy is also the co-chair of the Physician Executive Council, Optum Care’s national physician leadership and governing body.

Dr. Elsawy came to Optum by way of Reliant Medical Group, the Massachusetts-based multi-specialty group he has led since 2016.

At Reliant, Dr. Elsawy has overseen system transformation through the implementation of a team-based primary care clinical model. In 2018, Dr. Elsawy led Reliant through its acquisition by Optum.

Before joining Reliant, Dr. Elsawy held several executive positions at Cleveland Clinic. As vice president of regional operations and medical affairs, he had direct responsibility for 18 family health centers, and led operations at eight regional hospitals.

He also led the development and implementation of Cleveland Clinic’s clinically integrated network (Quality Alliance and the Medicare Accountable Care Organization).

Dr. Elsawy received his medical degree from Case Western Reserve University School of Medicine. He performed his internship and residency in internal medicine at the University of Virginia Medical Center and engaged in a research fellowship at Johns Hopkins University.

Bryan Grundhoefer, MBA, President, WellMed Medical Management, Inc. headshot

As president of WellMed Medical Management, Inc. and Optum Care Central Region, Florida and Texas, Bryan Grundhoefer is responsible for the overall operations of the award-winning, diversified health care enterprise. With more than 6,500 employees, WellMed supports more than 13,000 providers with various medical management services. Overall, WellMed provides quality health care services for more than 315,000 Medicare-eligible patients.

Before joining WellMed, Grundhoefer worked at Anthem, where he ran a multi-specialty IPA joint venture. He also worked in mergers and acquisitions with Anthem during the first two mergers with Blue Cross and Blue Shield health plans insurance companies.

Grundhoefer also previously worked in the consulting division for both Ernst & Young and Deloitte & Touche.

A CPA and member of the AICPA, Grundhoefer earned his MBA in Finance and Accounting from the University of Texas. He also has a Bachelor of Science in Industrial Management (with Distinction) from Purdue University. He currently serves as the head of the Health Care Advisory Council for the McCombs School at the University of Texas.

Scott D. Hayworth, MD, FACOG, President, Optum Tri-State headshot

Dr. Scott Hayworth has been president of the Optum Tri-State region since March 2021, overseeing three large multi-specialty groups – CareMount Medical, ProHEALTH NY and Riverside Medical Group – which serve a combined 1.6 million patients across 630 locations.

Additionally, he has served as president and chief executive officer of CareMount Medical for more than 20 years, overseeing a nearly 15-fold expansion in the size of the group prior to its becoming part of Optum in late 2020.

Under his leadership, CareMount Medical has grown from a handful of locations to more than 45 sites throughout the Hudson Valley and New York City, expanding and transforming staff, services, facilities and practice infrastructure to offer a high-quality, seamlessly integrated patient experience.

In this role, Dr. Hayworth also guided the establishment of relationships between CareMount and diverse partners and institutions, including affiliations with Massachusetts General Hospital, Northwell Health, Memorial Sloan Kettering Cancer Center and nine regional hospitals.

In 2019, Dr. Hayworth became chairman and CEO of CareMount Health Solutions, LLC, a collaborative physician-owned management services organization.

Dr. Hayworth is a consultant to the Vincent Department of Obstetrics and Gynecology at Massachusetts General Hospital, and a clinical assistant professor in the Department of Obstetrics and Gynecology at the Donald and Barbara Zucker School of Medicine at Hofstra/Northwell.

He is a past associate dean at the Icahn School of Medicine at Mount Sinai, as well as past chairman of the board of the American Medical Group Association.

He was selected by Becker’s Hospital Review as one of their “105 Physician Leaders to Know” in 2019 and “112 Physician Leaders of Hospitals and Health Systems” in 2018.

Dr. Hayworth received his bachelor’s degree in biology from Princeton University and his medical degree from Cornell University Medical College.

Kristi Henderson, DNP, NP-C, FAAN, FAEN headshot

A digital health leader and clinician with over 25 years of experience designing, implementing and optimizing the health care delivery system using digital health tools and technology.

She is the CEO for MedExpress and SVP of The Center for Digital Health & Innovation for Optum Health, where she is creating a first-of-its-kind connected health ecosystem using industry-leading digital health tools and telehealth.

She most recently led clinical operations for Amazon Care, a healthcare initiative for Amazon employees and their families.

Before joining Amazon, she designed and launched a national solutions center for patient access, virtual care, and care coordination for Ascension Health.

She has a proven track record of delivering successful programs at scale that improve health and save money.

She is an adjunct faculty member in Population Health at the Dell Medical School at the University of Texas-Austin and at the University of Washington School of Nursing.

Henderson thrives with complex challenges and consistently delivers results that exceed expectations.

She is known for her ability to execute and sustain these models in advance of them becoming an industry standard as evidenced by her first launch of a telehealth program in 2003 which is recognized as one of only two of HRSA’s Centers of Excellence.

She is resourceful, collaborative and known for her creative solutions that engage patients and empower clinicians.

She has testified before multiple U.S. Senate committees and given numerous presentations across the country, including a TEDx, to advance telehealth policy and share innovative new models of care.

A few of her other leadership roles include service as an executive board member for the American Telemedicine Association; Association of American Medical Colleges Telehealth Committee member, American Nurses Association co-chair for Committee on Connected Health and National Quality Forum Telehealth Committee.

She is a Fellow in the American Academy of Nursing and the Emergency Nurses Association and an honorary Dean at the University of Washington School of Nursing.

Henderson received her Doctor of Nursing Practice degree from the University of Alabama at Birmingham where she was recognized as the 2019 Distinguished Alumna from the School of Nursing. She maintains national certification as a family and acute care nurse practitioner.

Rob McBeath, MD, President, Optum Mountain West headshot

Robert McBeath, MD is the Chief Executive Officer of Southwest Medical Associates and the President of Optum Care Mountain West Region.

He joined Optum Care in 2013 as the CEO of Southwest Medical Associates. In 2017, he became President of the Optum Care Mountain West Region. This region includes over 800 employed providers and 12,750 contracted providers in the states of Nevada, Arizona, Utah, Colorado and New Mexico managing over 250,000 Medicare Advantage lives and over 500,000 commercial and managed Medicaid lives.

Dr. McBeath has held several leadership roles within Optum Care and is currently the Co-Chair of the Physician Executive Council, Optum Care’s national clinical leadership and governing body. He is also active in his local community of Las Vegas where he’s served in a variety of community leadership positions. He serves on the American Cancer Society’s CEOs Against Cancer board and is on the Board of Directors for Project 150, a local charity supporting homeless high school students.

Dr. McBeath completed his medical school training at the University of Nevada School of Medicine and his surgical internship and urology residency program at the University of Arizona Health Sciences Center in Tucson and served as Chief Resident. He is currently certified by the American Board of Urology and a Fellow of the American College of Surgeons. He received his Master of Medical Management from the University of Southern California.

Caitlin Zulla, Chief Executive Officer, Surgical Care Affiliates headshot

Caitlin Zulla joined SCA in 2015 and serves as chief executive officer. Prior to her role as CEO, Zulla served as chief administrative officer and chief financial officer with responsibility for ten separate business functions. 

Before joining SCA, she was senior vice president operations of revenue cycle services for MedAssets (a health care performance-improvement company). Zulla worked previously as a senior consultant at CBIZ, Inc. (a national professional services company) and as a managed care analyst at Atlantic Health System. 

She earned a Bachelor of Arts from Princeton University, and a Master of Public Health and Health Management from Columbia University.