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Cleveland Clinic London
LONDON: Cleveland Clinic London announced the appointment of Tiina Thornton, RN, as Chief Nursing Officer (CNO), effective, Nov. 1, 2025. Thornton will succeed Sheila A. Miller, DNP, MSN, MBA, RN, who will return to the health system in the United States.
Thornton, who currently serves as director of Nursing Quality and Professional Practice at Cleveland Clinic London, has been a key leader in the organization since joining in 2019 during the hospital’s early planning and activation stages. Her dedication, expertise, and visionary leadership have been instrumental in advancing nursing excellence and patient care standards across the institution.
Over the course of her tenure, Thornton has made significant contributions to Cleveland Clinic London’s mission, including partnering with philanthropy to support student nurse scholarships and the Intensive Care Unit (ICU) fellowship program. She has also provided strategic leadership as Interim Director in London’s staffing office and ICU.
“Tiina’s pragmatic and results-driven leadership has been a cornerstone of the success of the Nursing Institute in London,” said Rob Lorenz, M.D., President of Cleveland Clinic London. “Her unwavering commitment to excellence in patient care and professional practice makes her the ideal leader to guide our nursing team into the future.”
As Chief Nursing Officer, Thornton will oversee all aspects of nursing practice at Cleveland Clinic London, ensuring the delivery of world-class, patient-centered care while fostering innovation and professional growth among the nursing staff.
“We are deeply grateful for Sheila’s many contributions as London’s CNO,” said Dr. Lorenz. “Her leadership has been pivotal in establishing Cleveland Clinic London as a center of excellence, and we look forward to her continued impact within our global organization.”
Miller will return to Cleveland later this year to take on the role of Associate Chief Nursing Officer of Ambulatory Services & Care Management.
About Cleveland Clinic
Cleveland Clinic is a nonprofit multispecialty academic medical center that integrates clinical and hospital care with research and education. Located in Cleveland, Ohio, it was founded in 1921 by four renowned physicians with a vision of providing outstanding patient care based upon the principles of cooperation, compassion and innovation. Cleveland Clinic has pioneered many medical breakthroughs, including coronary artery bypass surgery and the first face transplant in the United States. Cleveland Clinic is consistently recognized in the U.S. and throughout the world for its expertise and care. Among Cleveland Clinic’s 81,000 employees worldwide are more than 5,743 salaried physicians and researchers, and 20,160 registered nurses and advanced practice providers, representing 140 medical specialties and subspecialties. Cleveland Clinic is a 6,690-bed health system that includes a 173-acre main campus near downtown Cleveland, 23 hospitals, 276 outpatient facilities, including locations in northeast Ohio; Florida; Las Vegas, Nevada; Toronto, Canada; Abu Dhabi, UAE; and London, England. In 2023, there were 13.7 million outpatient encounters, 323,000 hospital admissions and observations, and 301,000 surgeries and procedures throughout Cleveland Clinic’s health system. Patients came for treatment from every state and 132 countries. Visit us at clevelandclinic.org. Follow us at twitter.com/CleClinicNews. News and resources available at newsroom.clevelandclinic.org.
Cleveland Clinic London is part of the Cleveland Clinic health system that brings its world-renowned model of care to patients across the United Kingdom and beyond. Cleveland Clinic is consistently recognized throughout the world for its expertise and care. Cleveland Clinic London hospital opened on March 29, 2022, and features 184 inpatient beds, including 29 ICU beds, eight operating rooms, a full imaging suite, endoscopy and cardiac catheterization labs, day surgery rooms, and a comprehensive neurological suite with rehabilitation facilities. The hospital delivers a wide range of services, including cardiovascular and thoracic care, orthopaedics, digestive diseases, urology, neurosciences, ENT, general surgery, general practice, and executive health.
Cleveland Clinic London's outpatient locations include Cleveland Clinic Portland Place Outpatient Centre in the Harley Street Medical Area and Cleveland Clinic Moorgate Outpatient Centre at 55 Moorgate Street in London. Both locations provide access to the highest standard of outpatient care, including general practice, specialist appointments, and diagnostics.
Visit us at clevelandcliniclondon.uk. Follow us on X at @CleClinicLondon.For news and media resources, visit: newsroom.clevelandclinic.org/tag/london
