Doctolib, a German-French ehealth service company founded in 2013, aims to enhance healthcare accessibility and experience while currently employing 850 staff and valued at 1 billion euros as of March 2019. It serves both healthcare practitioners and patients by providing online scheduling and medical management services, facilitating 35 million monthly visits. The document emphasizes the evolving role of the CTO as a business enabler, advocating for a broadened skill set that includes marketing and financial acumen to drive organizational success.