"All of 5-foot-2 and dressed like a sexy librarian — snug blouse and pencil skirt — Maria usually counseled homeless patients at Bellevue Hospital, the institution famous (and infamous) for treating New York City's poorest and sickest." I do not understand why the author made this characterization. It seems to undermine their point.
So I'm glad that long-form non-fiction authors expend a few words on this. Height + "sexy librarian" is certainly not the most elegant formulation, but it's enough to avoid the frustrating blankness of an unbuilt narrative actor.