I don’t know the background, but there is a wonderful family with that name in Meah Sh’arim. A number of years ago, we spent 2 months in Meah Sh’arim, & Rav Katzenellenbogen, who was the head of the Neturei Karta k’hilla, and his wonderful rebbitzen, hosted us for a few s’udos on Shabbos & Yom Tov. We were clearly not N’turei Karta types (more Yeshivish), but the whole family was so warm & welcoming, and not only to us. There were many guests, ranging from one, who was jokingly referred to as the Tzoini, to very right-wing types.
There is a doctor in Flatbush with that name, but I don’t know if he is related.