I graduated from Medical University of Bialystok and received M.D. (diploma with distinction for the highest notes) in 1989. I did my residency and fellowship at Department of Nephrology and Internal Medicine (later renamed as Department of Nephrology and Transplantation with Dialysis Unit), Medical University of Bialystok, Poland. I am board certified specialist in internal medicine, nephrology, clinical transplantation, hypertension and diabetology. In 1995 I received Ph.D. at Hamamatsu University School of Medicine, Japan. I organized from scratch peritoneal dialysis program and outpatient hypertension clinic and later 2nd Department of Nephrology and Hypertension with Dialysis Subunit at the Medical University of Bialystok. From 2018 I became a head of Department of Nephrology, Dialysis and Internal Medicine, Warsaw Medical University, Poland. My clinical training was performed at the Intensive Care Unit with Toxicology Center, Nephrology Department, CHU Rouen, France, Department of Nephrology and Rheumatology, Dusseldorf, Germany (EDTA-ERA scholarship), King’s College of London, UK, Ichilov Hospital, Tel Aviv, Israel. I am European Specialist in Clinical Hypertension. In January 2007 I became FASN, in 2013 -FERA and in 2023 FISN. I am a Secretary General of the Polish Society of Transplantation. I was a member of ERA-EDTA Executive Council (2015-2018), a member of the Executive Council of KDIGO (term 2018-2022). I am a current member of Executive Council of ISPD and ISN as well as Deputy Chair of Central and Eastern Europe of ISN. I was a co-chair of KDIGO Controversy Conference on onconephrology (Milan December 2018). I am a Board Member of ERAKI working group dealing with acute kidney injury (2023-2026). My major research interest are: onconephrology and biomarkers of AKI, cardiovascular complications in CKD, iron metabolism and anemia in CKD, I am author and co-author of over 700 original papers in peer-reviewed journals, over 200 review papers and over 70 book chapters including Oxford Textbook of Clinical Nephrology (2015) (IF ~ 1400, citations over 9000 and h-index-48).