Dutch hospital director becomes anonymous kidney donor

Joris van de Klundert points me to the following story:
Voorzitter AMC geeft het goede voorbeeld als anonieme donor--
Ziekenhuisbestuurder schenkt een nier aan een onbekende
(Google translate: "Chairman AMC sets a good example as anonymous donor--
Hospital Director donates a kidney to a stranger")

"Levi (52) was operated on in his own hospital. When that happened, he would not say, because the recipient could then figure out his identity. This is undesirable, for an anonymous donation in order to protect the privacy.

"He tells his story because he wants to encourage others to think about undertaking organ donation.
...
"Thanks to a donor kidney dialysis patients do not have more weekly. Dialysis takes time, has serious side effects and worsens the health of patients.

"Levi is one of the seven people who have donated a kidney in the hospital this year an unknown. The Dutch Transplant Foundation (NTS) is no national records of the numbers of so-called altruistic donations, but thinks that it is a few dozen per year."