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She still sees patients. The CEO of a $5.7 billion company, with board seats at a publicly traded health firm, a slot on the Congressional Budget Office health panel, and a membership in the National Academy of Medicine - and she still shows up to the exam room. Not for optics. Because the exam room is where Toyin Ajayi's entire argument lives.
The argument, stated plainly: the sickest, most socially complex patients in America - the 10% who drive 50-60% of all healthcare spending - have been failed by a system built for other people. Ajayi didn't write a paper about it. She built Cityblock Health to fix it.
The journey from Nairobi to Brooklyn to a $1 billion revenue company passes through some unlikely geography. Born in Boston to Nigerian parents, raised in Kenya, trained at Stanford, Cambridge, and King's College London, she co-founded a healthcare nonprofit in Freetown, Sierra Leone at 25 before she ever wore the title of executive. In a country of 7 million people with 50 doctors, she saw what happens when healthcare systems abandon the math on certain lives. She filed it away.
By 2017, she was inside Alphabet's Sidewalk Labs - the same Google-backed lab that tried to redesign Toronto's waterfront - co-founding Cityblock with Iyah Romm and Bay Gross. The premise: build a technology-enabled, whole-person primary care model for the Medicaid and Medicare populations that every other health-tech startup had quietly decided weren't profitable enough to serve.
They were wrong about the economics. Ajayi proved it. Cityblock books $1 billion in annual revenue, with a care model that integrates physical health, mental health, and social determinants - food, housing, transportation - because, as Ajayi puts it: "Your hearts, lungs, and kidneys are only a small part of what it means to be healthy."
