Where does Toyin Ajayi work?

Toyin Ajayi is Founder of City Block and Co-founder and part-time GP at Coalition Operators.

What companies did Toyin Ajayi found?

Toyin Ajayi founded City Block.

Where did Toyin Ajayi go to school?

Toyin Ajayi studied at Stanford University (Bachelor of Arts - BA, Human Biology); King's College London (Doctor of Medicine (M.D.)); University of Cambridge (Master's Degree, Development Economics and International Development).

Toyin Ajayi

InvestorUnicorn founder

Founder at City Block · Co-founder and part-time GP at Coalition Operators

New York, New York, United States

FoundedCity Block$6B

Find your path to Toyin

45 people in our graph share verified history with Toyin — schools, employers, funds. One of them is your warm intro.

Chris BischoffunlockedToyin: together at Cityblock Health (2020–2026)

×6Toyin: together at Cityblock Health

Toyin: together at Commonwealth Care Alliance

Toyin: together at Evolent

About

A physician by training, Toyin is co-founder and CEO of Cityblock Health, a multibillion-dollar company serving marginalized populations. She advises founders on building in regulated industries and scaling complex teams, especially in healthcare, education, and tech-enabled services.

Likely emails· guessed from name + firm domain, not firm-published

t•••@cityblock.comreveal90% confident
t•••@cityblock.comreveal75% confident

Founder at City Block

Intro paths

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In turn, Toyin can intro founders to City Block's investors below.

City Block's investors · 11

8VCAustin · $100K – $50M checks Echo Health VenturesDurham General CatalystSan Francisco · $30M checks · since 2020 KinnevikStockholm · since 2020 Lifeforce CapitalChevy Chase · $500K – $5M checks Maverick VenturesSan Francisco · $3M – $10M checks Open Opportunity FundAtlanta · $100K – $1M checks Redpoint VenturesWoodside · $100K – $10M checks · since 2021 SoftBank Vision FundLondon TMVNew York · $1.5M checks Town Hall VenturesNew York · $3M – $30M checks · since 2021

Co-founders at City Block

Iyah RommExecutive Officer, Director

Mat BalezFounder

Experience

Cityblock HealthCo-founder and CEOcurrent2022 — present
Cityblock HealthPresident & Co-Foundercurrent2017 — presentNew York City Metropolitan Area
EvolentMember Board of Directorscurrent2023 — present
The Aspen Institute2023 Henry Crown Fellowcurrent2023 — present
Coalition OperatorsCo-founder, General Partnercurrent2020 — present
Sidewalk LabsChief Health Officer - Care Lab2017New York, NY
Commonwealth Care AllianceChief Medical Officer2015 — 2017
Commonwealth Care AllianceChief of Medical Services2015
Commonwealth Care AllianceHospitalist Medical Director & Director of Transitions of Care2013 — 2015
Boston University / Boston Medical CenterFamily Medicine Hospitalist, Clinical Instructor, Global Health Fellow2012 — 2013Boston, MA

Skills & more

Healthcare Management30Global Health31Primary Care18Healthcare26Hospitals11Clinical Research12Medicine11Pediatrics11Medical Education6Public Speaking9Strategic Planning9Critical Care4

+9 more

Program EvaluationPublic HealthProgram ManagementResearchData AnalysisEmergency MedicineFamily MedicineHealthcare Information TechnologyNonprofits

From Toyin's professional profile.

Colleagues at Coalition Operators

Allison Lee

Investor at Coalition Operators

Ashley Mayer

Co-founder and full-time GP at Coalition Operators

Jaclyn Rice Nelson

Co-founder and part-time GP at Coalition Operators

Jonathan Sabbagh

Co-founder at Coalition Operators

Kieran Chacko

Incubation Venture Partner at Primary Venture Partners

Lindsay Ullman

Co-founder and part-time GP at Coalition Operators

Tade Oyerinde

Investor at Coalition Operators

Frequently asked questions

Who is Toyin Ajayi?: A physician by training, Toyin is co-founder and CEO of Cityblock Health, a multibillion-dollar company serving marginalized populations. She advises founders on building in regulated industries and scaling complex teams, especially in healthcare, education, and tech-enabled services.
Where does Toyin Ajayi work?: Toyin Ajayi is Founder of City Block and Co-founder and part-time GP at Coalition Operators.
What companies did Toyin Ajayi found?: Toyin Ajayi founded City Block.
Where did Toyin Ajayi go to school?: Toyin Ajayi studied at Stanford University (Bachelor of Arts - BA, Human Biology); King's College London (Doctor of Medicine (M.D.)); University of Cambridge (Master's Degree, Development Economics and International Development).