Physicians who choose to partner with DaVita have direct access to a network of leading clinical experts in our discipline. Together, DaVita's entire clinical team — including the Office of the Chief Medical Officer (OCMO) in the United States, our European clinical leadership team and all of our physician partners — identifies, shapes and drives the patient programs that are adapted locally and implemented in Poland. We listen to our physician teammates because they know better than anyone what is best for their patients.
DaVita established the Office of the Chief Medical Officer (OCMO) in the United States as a group of experienced nephrologists dedicated to working with DaVita business leadership to provide value for patients, deliver high-quality outcomes and be responsible stewards of resources while always ensuring the highest level of care.
ALLEN R. NISSENSON, MD, FACP | CHIEF MEDICAL OFFICER, DAVITA
A prolific author and renowned authority on kidney disease, Allen R. Nissenson, MD, FACP, is emeritus professor of medicine at the David Geffen School of Medicine at UCLA, where he has served as associate dean and director of the dialysis program. Dr. Nissenson is a former president of the Renal Physicians Association (RPA) and, prior to that, served on the RPA board of directors as a special advisor to the president. Dr. Nissenson has also served as president of the Southern California ESRD Network. Read Allen's Blog »
MAURICIO RUIZ M., MD
Dr. Ruiz was an associate professor of Nephrology and Semiotics in the Medical Faculty at the University de Rosario and in the Foundation for University Studies of the Health Sciences (FUCS). He was also director of dialysis services at San Jose Hospital for more than 10 years; he is the author of various chapters in Nephrology textbooks and Medical textbooks edited in Colombia and he is the co-editor of the latest edition of the Text on Nephrology of the CIB Collection in Colombia. He is the current medical director of DaVita Colombia.
STEFAN H. JACOBSON, MD, PhD | CEO AND PROFESSOR OF NEPHROLOGY, DANDERYD UNIVERSITY HOSPITAL
Professor Jacobson, in addition to being CEO and professor of nephrology at Danderyd University Hospital in Sweden, is the associate editor of the Scandinavian Journal of Urology. Previously Professor Jacobson served first as the head of the medical division and then as the director of the nephrology department at Karolinska University Hospital and Korolinska Institute. He has written or contributed to more than 150 publications in journals around the world, and focuses his research on inflammation and cardiovascular disease, leukocyte function, transmigration of leukocytes, IgA nephropathy and cardiorenal syndrome. Professor Jacobson also serves on several international study and steering committees, with a focus on the randomized controlled study of the effects of hemodialysis (membrane permeability outcome study), the practice pattern in hemodialysis (dialysis outcome practice pattern study) and the effects of cinacalcet (ECHO).
MACIEJ DROŻDŻ, MD, PhD | CHIEF MEDICAL DIRECTOR, EUROPE AND THE MIDDLE EAST
As chief medical director for DaVita’s operations in Europe and the Middle East, Dr. Droźdź worked for more than 20 years at University Hospital in Kraków and served as the head of the dialysis unit in the department of nephrology.
He has written or contributed to nearly 40 journal publications, including six chapters in Polish nephrology textbooks. His research focuses on cardiovascular challenges for dialysis patients and intradialytic anti-coagulation. As both principal and co-investigator he took part in phase II, III and IV clinical trials.
DaVita believes that strong, quality leadership can improve the lives of patients by facilitating better care. Medical directors can stimulate superior clinical outcomes through effective leadership and higher standards. In Colombia, DaVita physicians work with a skilled team of nephrologists who obtained significant dialysis and clinical nephrology experience in Colombia’s leading clinical centers.
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