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dr Michał Kretowicz
A specialist physician, he graduated from the First Medical Faculty of Medical University of Warsaw in 2010. He specialized in obstetrics and gynaecology at Bielański Hospital in Warsaw. Since 2017, he has been working with the Family Planning Centre, where he trained with Dr. Eugeniusz Siwik to perform vasectomies and revasectomies.
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dr Janusz Zajda
A specialist in urology, neurourology and general surgery with several decades of experience. A graduate of the Medical University of Warsaw. He gained professional experience in Third Department of Surgery at the Praga Hospital in Warsaw, finishing with a second-degree specialization exam in general surgery. He then took up urology, working in the Department of Urology at the Central Clinical Hospital of the Interior Ministry, passing the Level II specialty exam in urology. He has worked with Dr. Eugeniusz Siwik for many years. He currently performs vasectomy procedures and provides advice on male urology.






