What I meant to say is that the old one is a logo that (without any text or anything) practically screams "hospital"/"medical institution" to anyone looking at it for the first time, while the new one is rather ambiguous, especially if you have no context for it.
I've never seen either of these logos before, but in the new one I immediately see the "H" formed by the white space between the two "green blobs", which to me look like "healing hands" and which I take as a medical reference (although TBH they do make me think "chiropractor" rather than "doctor"). I don't think the new one is great, but I much prefer it to the old one, which looks like a very half-assed attempt to combine an H with the Rod of Asclepius. It's like they weren't even trying.