No, nothing quite like HN (aggregator) exists that I've found, which is unfortunate. In this space a lot it seems most of the discussion happens on twitter, discord, or between blog posts and for the most part not in comment sections. Additionally med/bio is such a wide field I get the sense most people stick to their niche and struggle to keep up with that. However for news sites and latest:
https://endpts.com/
https://www.fiercebiotech.com/
https://www.statnews.com/
https://www.nature.com/nature/articles?type=news-and-views
https://pubmed.ncbi.nlm.nih.gov/trending/