Hello Patient is a conversational AI patient engagement platform founded in 2023 by Alex Cohen, formerly of Carbon Health, with ex-Carbon Health colleagues. Its generative AI call agents do the work of traditional support staff at outpatient medical practices, managing real conversations around the clock to book appointments, answer questions and reengage patients while meeting healthcare's strict privacy and security standards. By handling end-to-end communications across voice, text and chat, the platform helps practices run leaner and grow faster. Hello Patient raised a $22.5M Series A led by Scale Venture Partners in September 2025, with participation from 8VC, Bling Capital, Max Ventures, Remus Capital and FirstLook Partners.