Doximity, Inc.
A professional networking and telehealth platform built for doctors, often called the "LinkedIn for physicians." Its tools let clinicians find colleagues, share patient updates securely, and call patients from their own phones while displaying their office number. Co-founded in 2010 by Jeff Tangney, who earlier built the doctor's drug-reference app Epocrates, the company takes its name from "Doc" plus "proximity" — bringing physicians closer together.