functional-medicine
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Tiffany Mullen Left the 10-Minute Visit and Built a Company Around Time
The Vytal Health founder traded a large health system for the unruly work of building a company - and made the unscalable act of listening the center of its model.
Robin Berzin
Robin Berzin is the founder and CEO of Parsley Health, a holistic, root-cause medical practice she launched in 2016 to make functional medicine modern, data-driven, and reachable online nationwide. A Columbia-trained physician who started out chasing securities fraud as a paralegal at the U.S. Attorney's office, she co-founded the doctor-messaging app Cureatr in medical school before building Parsley into one of the largest functional medicine practices in the country. She is the author of State Change, a World Economic Forum Tech Pioneer, and one of Inc.'s 100 most innovative women in business.
Ellen Rudolph
Ellen Rudolph is the Co-Founder and CEO of WellTheory, a San Francisco-based digital health company on a mission to reverse the autoimmune epidemic. A Stanford-trained product design engineer and Functional Medicine Certified Health Coach, Ellen founded WellTheory in 2022 after her own years-long battle with debilitating autoimmune symptoms drove her to create the empathetic, evidence-based care she wished she'd had. WellTheory has since raised $33.4M in total funding—including a $14M Series A led by General Catalyst in October 2025—and achieved 10x year-over-year member growth and 5x revenue growth, serving 50 million Americans navigating autoimmune conditions.