The Leadership Team

Jorge A. Guzman, MD, MBA, Chief Executive Officer

Jorge A. Guzman, MD, MBA, is the Chief Executive Officer of Cleveland Clinic Abu Dhabi, a Mubadala Health partner, and a consultant Staff physician in the hospital’s Critical Care Institute.

As Chief Executive Officer, Dr. Guzman leads a 400-bed hospital and a 5,300 strong multicultural team of caregivers. In his role he oversees Cleveland Clinic Abu Dhabi’s strategy and operations in addition to maintaining his patient facing clinical practice. Before taking over as Chief Executive Officer, Dr. Guzman served as the hospital’s Chief of Staff, leading the recruitment of physicians and spearheading programs to ensure Cleveland Clinic Abu Dhabi continues to deliver the highest standard of care for some of the region’s most complex cases.

Prior to joining Cleveland Clinic Abu Dhabi, Dr. Guzman was Cleveland Clinic’s VP of Regional Hospital Medical Operations. Committed to innovation, he oversaw the development of the ICU telemedicine program (eHospital) at Cleveland Clinic and holds two patents registered with the US Patent and Trademark Office.

A fellow of the American College of Critical Care, Dr. Guzman received his medical degree in 1988 from the Universidad Nacional de Córdoba, in Córdoba, Argentina. After completing his residency in internal medicine and a fellowship in critical care medicine at Hospital Privado de Comunidad, Mar del Plata, Argentina, he completed an additional fellowship in Critical Care Medicine at Wayne State University in Detroit, Michigan. Additionally, he completed a Healthcare MBA at Ballwin Wallace University in Ohio. He was appointed to Cleveland Clinic’s medical staff in 2007 and has authored or co-authored more than 50 scientific papers in peered-reviewed medical journals.

Nizar Zein, MD, Chief of Staff

Nizar Zein, MD is the Chief of Staff of Cleveland Clinic Abu Dhabi, an integral part of Mubadala Health. In his role, he leads more than 400 physicians across 16 institutes, supporting their wellbeing and the continuous improvement of the care they offer patients.

Dr. Zein is passionate about quality, empathy and compassionate care as well as the education of those who serve. Before his appointment as Chief of Staff, he was Chairman and Medical Director of Global Patient Services at Cleveland Clinic, leading a multidisciplinary and multinational team of caregivers that ensured all international patients receive high quality, seamless care.

Dr. Zein’s research interests focus on improving disease and treatment outcomes in patients with Hepatitis C before and after liver transplantation. He has authored over 200 publications, and has been the Principal Investigator of several large clinical trials. He holds several patents and established a research group at Cleveland Clinic focused on the 3D printing of solid organs. Elected to Cleveland Clinic’s Board of Governors in 2015, he has sat on Cleveland Clinic’s Board of Directors as a representative of the Board of Governors since 2017. Dr. Zein received several awards, including the American Liver Foundation Scholar Award, the Cleveland Clinic Innovator Award and the Distinguished Faculty Award for Research Mentorship. He was recognized as ‘Teacher of the Year’ by the Cleveland Clinic Lerner College of Medicine Teacher for his commitment to the education and mentorship of young physicians.

Mumtaz Khan, MD, MBA, Chief Medical Officer

Mumtaz Jamshed Khan, MD, MBA is the Chief Medical Officer and Department Chair of Otolaryngology in the Surgical Subspecialties Institute at Cleveland Clinic Abu Dhabi, an integral part of Mubadala Health. In his role as Chief Medical Officer, Dr. Khan oversees inpatient, outpatient and surgical operations. Prior to joining Cleveland Clinic Abu Dhabi, Dr. Khan was a Professor and Director of Head and Neck Surgery at Aga Khan University.

Dr. Khan received his medical degree from Aga Khan University. After completing his residency at Henry Ford Hospital in Detroit, he pursued fellowship training in Head and Neck Surgical Oncology, Skull Base and Microvascular Reconstructive Surgery from Vanderbilt University. He has held a range of administrative positions in addition to his clinical work throughout his career and holds an Executive MBA in Healthcare Management from Brandeis University, Boston, Massachusetts.

Marc Petre, Chief Operating Officer

Marc Petre is Chief Operating Officer at Cleveland Clinic Abu Dhabi, an integral part of Mubadala Health. As part of the leadership team at Cleveland Clinic Abu Dhabi, Marc oversees numerous key departments, including facilities, construction, safety, regulatory compliance, emergency management, protective services, parking, environmental services, laundry, food service, supply chain management, and patient hospitality.

Prior to joining Cleveland Clinic Abu Dhabi, Marc served as Cleveland Clinic’s Executive Director for Clinical Engineering since February 2011, managing the daily and strategic activities for Clinical Engineering across the enterprises’ 18 hospitals and associated outpatient centers. Marc worked through Cleveland Clinic Innovations to commercialize several technical solutions developed at the bedside, including a platform for telemedicine which was deployed across Cleveland Clinic’s US facilities. Additionally, he supported the Cleveland Clinic’s international activities in London and Canada, and has significant expertise in High Level Disinfection compliance and safety across health systems.

During his tenure at Cleveland Clinic, Marc was recognized as an experienced leader, an inventor of patented solutions, an innovator, an educator, and a highly-skilled professional in the logistics, strategy, and community aspects of healthcare. Marc earned his Bachelor of Science in Materials Science and Engineering from the University of Cincinnati before receiving his Master of Science and Doctor of Philosophy degrees in Biomedical Engineering from Case Western Reserve University. He is a member of the Biomedical Engineering Society and the Association for the Advancement of Medical Instrumentation.

Dr. Mubarak Aldarmaki, Chief Administrative Officer

Dr. Mubarak Aldarmaki is the Chief Administrative Officer at Cleveland Clinic Abu Dhabi, an integral part of Mubadala Health.

In this role, he is responsible for government and regulatory relations in Abu Dhabi and the wider UAE, and coordinating care transitions among government facilities and clinical providers. He is also responsible for the Office of Facilitated Access.

Dr. Aldarmaki was most recently Cleveland Clinic Abu Dhabi’s Senior Director, Office of Facilitated Access. Previously, he was the Chief of the Emirates Field Hospital at Dubai Parks and Resorts as part of the UAE’s coordinated response to address COVID-19, and held senior leadership roles at SEHA facilities including Al Rahba Hospital, Al Mafraq Hospital and Ambulatory Healthcare Services.

With degrees in Medicine and Surgery from UAE University and a Master’s degree in Healthcare Management from the Royal College of Surgeons in Ireland, Dr. Aldarmaki brings more than 15 years of medical and professional healthcare management experience to his role.

Sawsan Abdel-Razig, MD, Interim Chief Academic Officer

Dr. Sawsan Abdel-Razig, MD, MEHP, is Interim Chief Academic Officer at Cleveland Clinic Abu Dhabi. She is also the Director of Medical Education in the Office of Education and Research and is responsible for the development and administration of clinical training programs at CCAD.

Prior to joining Cleveland Clinic Abu Dhabi, Dr. Abdel-Razig served as the head of the medical education section at the Health Authority Abu Dhabi (HAAD) from 2010 to 2015 and internal medicine consultant at Mafraq Hospital. In addition to her clinical roles, Dr. Abdel-Razig was responsible for the development and regulatory oversight of health professionals’ graduate medical education programs and continuing professional development in the Emirate of Abu Dhabi. Dr. Abdel-Razig is a clinician educator who has served as a residency program director, teaching faculty and continues to pursue various forms of educational scholarship. She serves as adjunct assistant professor at New York University Medical School and teaching faculty at the School of Education at Johns Hopkins University.

Dr. Abdel-Razig received her medical degree from the University of Connecticut School of Medicine in Farmington, CT, US. She completed her residency at New York University Medical Center in NY, US. Dr. Abdel-Razig received her Master's in Education of Health Professionals from the Johns Hopkins University in Baltimore, MD, US.

Glenn Zirbser, Chief Financial Officer

Glenn Zirbser is the Chief Financial Officer at Cleveland Clinic Abu Dhabi, an integral part of Mubadala Health. In this role, he is responsible for the commercial oversight of the institution, ensuring its efficiency and growth through robust resource management principles and sound corporate governance policies.

Glenn brings more than 27 years of expertise to his role at Cleveland Clinic Abu Dhabi, having held a range of senior positions in operations, consulting, and management. He has a demonstrated track record in growing clinical service lines through strategic investment and enhanced patient access.

Previously, Glenn served as Senior Vice President and Regional Chief Financial Officer at Jefferson Health, a regional academic health system composed of 11 hospitals and multi-specialty physician enterprises. He has also held similar roles at Princeton HealthCare System and Inova Health System.

Bryan Lord, Chief Information Officer

Bryan Lord is the Chief Information Officer at Cleveland Clinic Abu Dhabi, an integral part of Mubadala Health. In his role, Bryan manages the hospital’s IT infrastructure, enabling it to take advantage of the latest innovations in the health technology domain.

Bryan has more than 15 years of experience in the healthcare sector. He has been with Cleveland Clinic Abu Dhabi since 2010. Prior to that, Bryan served as Development Manager at Providence Health & Services in Portland, in the United States.

Bryan holds a Master of Business Administration degree (MBA) from the University of Phoenix, Portland, USA, and a Bachelor of Science degree in Information Systems from Portland State University, USA.

Joanne Bruton, RN, MSN, Interim Chief Nursing Officer and Executive Director of Perioperative Services

Joanne Bruton, RN, MSN, is the interim Chief Nursing Officer and Executive Director of Perioperative Services at Cleveland Clinic Abu Dhabi. With 18 years’ experience in progressively responsible clinical leadership roles, and over 30 years of nursing experience in both the public and private sectors, Joanne’s extensive knowledge and experience supports excellence in patient care. Her focus on multidisciplinary collaborations across the organisation enable Joanne to positively influence workplace culture to create cohesive teams.

Since joining Cleveland Clinic Abu Dhabi’s Perioperative Services in 2016, Joanne has supported growth and improvement of quality and patient safety, providing leadership for the nursing team in the development of new programs including multi organ transplant, robotic surgery, structural heart and awake craniotomy. Joanne is passionate about serving patients in their most vulnerable moments and in her role as Co-Chair of the Patient Experience Council, she was a proud member of the scientific panel for the Patient Experience Symposium hosted by Cleveland Clinic Abu Dhabi in 2020. Joanne embraces a shared governance model and empowers others to apply evidenced-based best practice, leading a restructure of the unit-based Council which resulted in numerous improved metrics.

Prior to joining Cleveland Clinic Abu Dhabi, Joanne was Nurse Manager for an 18 Operating Room complex at Gold Coast Private Hospital, Australia. Throughout her career, Joanne has led a wide range of projects and initiatives including consulting for a greenfield perioperative project, capital equipment purchase, and leading the relocation of perioperative services.

Joanne completed her nursing training at the Princess Alexandra Hospital, Brisbane, Australia, a Bachelor of Nursing at James Cook University, Australia, and a Masters in Nursing at the University of Newcastle, Australia.

Ali Al Jawdar, Chief Human Capital Officer

Ali Al Jawdar is the Chief Human Capital Officer at Cleveland Clinic Abu Dhabi, an integral part of Mubadala Health, leading the development and execution of the organization’s Human Capital strategy and initiatives in line with the hospital’s overall ‘patients first’ mission and strategic direction.

Ali has been with Cleveland Clinic Abu Dhabi since 2016, where he has led several projects relating to Caregiver Experience, Emiratization, Housing, and Human Capital Systems. Prior to that, he worked at Mubadala Investment Company and has held different positions in the areas of support and shared services.

Ali holds a Master of Business Administration (MBA) Degree from Abu Dhabi University.

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