St. Joseph Health System Appoints Walt Mickens as New CEO for Queen of the Valley Medical Center

ORANGE, Calif.--(BUSINESS WIRE)-- Queen of the Valley Medical Center (QVMC) and St. Joseph Health System (SJHS) today announced that Walt Mickens has been named Queen of the Valley’s new President and Chief Executive Officer (CEO). Mickens succeeds Dennis Sisto, who is retiring after a distinguished, 13-year tenure at QVMC and 24-year tenure with St. Joseph Health System.

Walt Mickens, Queen of the Valley's new President and Chief Executive Officer (Photo: Business Wire)

Walt Mickens, Queen of the Valley's new President and Chief Executive Officer (Photo: Business Wire)

Mickens has served as Chief Operations Officer (COO) for QVMC since 2008. He is a senior healthcare executive with more than twenty-five years of experience at acute care facilities, including teaching, faith-based, non-profit, for-profit, trauma center and community hospitals.

“Walt has been an asset to our health care system and brings significant experience that will lead Queen into the next chapter of success while continuing to provide the highest quality of care,” said Joseph Randolph, Executive Vice President and COO of St. Joseph Health System. “He has played an intricate role in the Queen’s impressive record of growth and development and I am confident that his vision will continue to build on Queen’s heritage of meeting the needs of the Napa community.”

While at Queen of the Valley, Mickens has helped forge a creative partnership with UCSF Medical Center to return neurosurgery to the Napa Valley, opened a very successful Wound Care Center, built strong relationships with medical staff and employees, personally championed the employee health program and oversaw successful adoption of various process improvement initiatives aimed at financial and operational efficiency.

“I am excited to be part of Queen of the Valley’s continued success,” said Mickens. “I look forward to continuing and expanding on the standards of service and excellence advanced by Dennis that truly distinguish the Queen as a regional healthcare resource. As we look for opportunities to expand our services and extend our mission, my goal is to focus on building a network of care that reaches beyond our hospital walls.”

Before coming to Queen of the Valley, Mickens served as CEO of West Boca Medical Center in Boca Raton, Florida. His previous administrative experience also includes a role as an executive for another hospital in the St. Joseph Health System – Mission Hospital in Mission Viejo, California.

During his career, Mickens has successfully planned and implemented a wide variety of clinical and operational programs, including hospitalist relationships, inpatient and outpatient surgery programs, employee and patient satisfaction efforts, and service line planning and implementation. He has also overseen employee and community campaigns focusing on a variety of issues critical to healthcare delivery.

Mickens earned an M.B.A., in Corporate Finance at Fairleigh Dickinson University in Rutherford, New Jersey, and a B.S. in Business Administration at Lebanon Valley College in Annville, Pennsylvania.

Dennis Sisto departs QVMC after a period of unprecedented progress at the medical center. Under Sisto’s direction, Queen of the Valley has made advances in the quality, accessibility, and depth of the services it offers to the community. Among the most impressive technical achievements resulting from Sisto’s continuing emphasis on state-of-the-art services have been the addition of a comprehensive robotically assisted surgery program, re-establishment of a Neuroscience program, and development of unparalleled diagnostic capabilities within the Napa Valley Imaging Center.

Under his leadership, Queen of the Valley has also opened a 20,000-square-foot, stand-alone Outpatient Surgery & Procedure Center; completed remodeling and expansion of the Obstetrics Department; and embarked on a 72,000 square-foot building expansion that will create six new, state-of-the-art surgical suites. In tandem with Sisto’s efforts to enhance the Queen’s range of medical and surgical services, he has championed projects aimed at disease prevention and management.

He led the development process for the Queen of the Valley Medical Center Wellness Center, opened in 2007, to provide wellness, disease management, medically based fitness, and additional rehabilitation services to the community.

About Queen of the Valley Medical Center

Queen of the Valley Medical Center is a 191-bed, acute-care facility founded by the Sisters of St. Joseph of Orange. The Queen is the largest health care facility and one of the largest employers in Napa County. Services provided include: a Regional Heart Center, a Regional Orthopedic Center, a Cancer Center approved with commendations by the American College of Surgeons, a Women’s Center, maternity and infant care, inpatient and outpatient minimally invasive surgery, occupational health, and full-service emergency department, among many other specialty services. More information about Queen of the Valley Medical Center can be found at

About St. Joseph Health System

The St. Joseph Health System (SJHS) is an integrated Catholic healthcare delivery system sponsored by the St. Joseph Health Ministry. We provide a full range of care facilities including acute care hospitals, home health agencies, hospice care, outpatient services, skilled nursing facilities, community clinics, and physician organizations throughout California, Texas and New Mexico. Our 24,000 dedicated employees strive daily to provide perfect care while building the healthiest communities and ensuring every encounter is sacred. SJHS is committed to maintaining a continuum of care that matches the diverse needs of the communities we serve. For more information about SJHS, log onto

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Kellie Todd Griffin, Corporate Communications
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Jaime Peñaherrera, Marketing, Communications & Public Relations
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KEYWORDS:   United States  North America  California

INDUSTRY KEYWORDS:   Health  Hospitals


Walt Mickens, Queen of the Valley's new President and Chief Executive Officer (Photo: Business Wire)