Accessibility Statement

We are committed to providing a website that is accessible to the widest possible audience. To do so, we are actively working with consultants to update the website by increasing its accessibility and usability by persons who use assistive technologies such as automated tools, keyboard-only navigation, and screen readers.

We are working to have the website conform to the relevant standards of the Section 508 Web Accessibility Standards developed by the United States Access Board, as well as the World Wide Web Consortium's (W3C) Web Content Accessibility Guidelines 2.1. These standards and guidelines explain how to make web content more accessible for people with disabilities. We believe that conformance with these standards and guidelines will help make the website more user friendly for all people.

Our efforts are ongoing. While we strive to have the website adhere to these guidelines and standards, it is not always possible to do so in all areas of the website. If, at any time, you have specific questions or concerns about the accessibility of any particular webpage, please contact so that we may be of assistance.

Thank you. We hope you enjoy using our website.

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Leadership Team at Carondelet Hospital

Guiding Us into the Future

Meet the people who are proudly leading Carondelet Health Network in our commitment to delivering high-quality health and wellness to the community. These leaders strive for excellence, innovation and accountability in all areas of care.

Carondelet Health Network Chief Executive Officer

Doug Luckett leads market strategy and operations as Chief Executive Officer for Carondelet Health Network. He is a seasoned executive focused on fostering a culture of quality, experience, transparency and stewardship. Experienced in collaboration, clinical integration, acute care operations, board relations and community inclusion, he provides leadership to continue Carondelet’s legacy as a health care leader in Tucson and Southern Arizona.

Luckett previously served as regional president of a health system in Phoenix, and also held executive positions in Massachusetts, North Carolina, Florida, Texas and South Carolina. He is a Fellow in the American College of Healthcare Executives, and holds an MBA from the University of Memphis and a bachelor’s degree in Allied Healthcare Administration from the University of Alabama at Birmingham.

St. Joseph’s Hospital Chief Operating Officer

Nikki Castel, MD, is chief operating officer at St. Joseph’s Hospital. She previously served as associate administrator at Abrazo West Campus in Goodyear, Ariz., a Level I trauma center. Castel has also worked in healthcare consulting and completed a plastic surgery residency at Rutgers Medical School. She received a bachelor of science degree in Biochemistry at Arizona State University and earned her Doctor of Medicine Degree from the University of Hawaii John A. Burns School of Medicine.

St. Joseph’s Hospital Chief Nursing Officer

Kimberly Diaz, RN is chief nursing officer at St. Joseph’s Hospital. Prior to joining Carondelet, she held nursing leadership positions in Colorado, Florida and Pennsylvania and has more than 20 years of nursing experience. Diaz holds a bachelor’s degree in Nursing from Millersville University and a Master of Science in Nursing from the University of Phoenix.

St. Mary’s Hospital Chief Operating Officer

Ryan Harper is chief operating officer at St. Mary’s Hospital. Prior to joining Carondelet, he was chief strategy officer at Abrazo Scottsdale Campus in Phoenix, and served as manager of Government Relations for Tenet's Arizona Group, which includes Abrazo Health and Carondelet Health Network.

Harper holds an undergraduate degree from the University of Arizona and a graduate degree from Duke University.

St. Mary’s Hospital Chief Nursing Officer

Lynn Watson, RN is St. Mary’s Hospital Chief Nursing Officer. She has more than 20 years of experience and served as CNO and vice president of patient care services at Saint Joseph’s Medical Center in Illinois prior to joining Carondelet. Watson holds a Bachelor’s in Nursing from Illinois State University-Mennonite College of Nursing and a Master’s degree in Nursing Education and Administration from the University of Phoenix.

Chief Human Resources Officer

Ricky Russell is chief human resources office for Carondelet Health Network. His background includes CHRO positions in southern California, and he has also held various Human Resources leadership roles in the healthcare and airline industries. Russell holds a Juris Doctorate from the University of New South Wales in Sydney, Australia; a Master of Business Administration from Sullivan University in Louisville, KY.


Holy Cross Hospital

Debra Knapheide, M.S.N.
Chief Executive Officer/CNO/COO

Debbie’s professional experience includes serving as director of multiple clinical departments and an Associate Program Manager for Psychiatric Services. As an Associate Chief Nursing Officer, she led the Clinical Services Division of an international health care organization. She has worked with health care professionals in the U.K., India and the Philippines, in both nonprofit and for-profit settings. She is credited with the development of a Bone and Joint Program at DePaul Health Center, a 600-bed hospital in St. Louis, Missouri, and has also consulted on competency-based education for clinical staff.

Debbie earned her B.S. in Nursing from the University of Missouri and her M.S. in Nursing and Leadership from Grand Canyon University.

Dina Rojas-Sanchez
Director of Support Services

Dina is the Director of Support Services for Holy Cross Hospital in Nogales. She joined Carondelet in April 1994. She has served in many capacities for the past 22 years leading the various departments of strategic planning, community relations, media relations and marketing. She has served as the lead of all ancillary departments overseeing the operations of facilities, environmental services, dietary services, business office, security and biomedical. Dina holds a Bachelor of Science degree in Communications from the University of Arizona and a Master’s degree in Multicultural Education from Northern Arizona University.