Billy Deitch
InvestorPartner at Oak HC/FT
San Francisco, California
Writes $5M – $50M checks · typically $25M
Find your path to Billy
504 people in our graph share verified history with Billy — schools, employers, funds. One of them is your warm intro.
Ann LamontunlockedBilly: together at Oak HC/FT (2018–2026)
×4Billy: together at Yale University
×6Billy: together at Stanford University Graduate School of Business
Billy: together at Oak HC/FT
About
Partner focused on healthcare.
Contact· self-published, not guessed
Invests in
Digital HealthHealthtech
Experience
- Oak HC/FTPartnercurrent2018 — presentSan Francisco Bay Area
- Courier HealthInvestorcurrent2026 — present
- Candid HealthInvestorcurrent2025 — present
- DispatchHealthInvestorcurrent2020 — presentDenver, Colorado, United States
- BrightlineInvestorcurrent2019 — presentPalo Alto, California, United States
Deals · 1
Attribution from SEC filings, press coverage, and firm rosters.
Other disclosed investments
Investor
MendelOliveOODA Health
Sources: the firm's website · SEC Form D filings.
Colleagues at Oak HC/FT
Alana Bremner
Director of Marketing & Communications at Oak HC/FT
Allen Miller
Partner at Oak HC/FT
Alli Kinzel
Marketing Administrative Coordinator at Oak HC/FT
Alper Koper
Investor at Nexus Ventures
Amit Jhawar
Advisor at Oak HC/FT
Andrew Adams
Co-Founder and Managing Partner at Oak HC/FT
Andy Smith
Partner at Oak HC/FT
Anil Aggarwal
Venture Partner at Oak HC/FT
Network5
Allen Miller
Partner at Oak HC/FT
Andrew Adams
Co-Founder and Managing Partner at Oak HC/FT
Andy Smith
Partner at Oak HC/FT
Anil Aggarwal
Venture Partner at Oak HC/FT
Ann Lamont
Managing Partner at Oak Investment Partners
Investors connected to Billy in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Billy Deitch?
- Partner focused on healthcare.
- Where does Billy Deitch work?
- Billy Deitch is Partner at Oak HC/FT.
- What does Billy Deitch invest in?
- Billy Deitch invests in Digital Health, Healthtech.
- What check size does Billy Deitch write?
- Billy Deitch typically writes checks of $5M – $50M.
- What boards does Billy Deitch sit on?
- Billy Deitch holds tracked board seats at Brightline, Candid Health, Courier Health, CrossChx, Dispatch Health, Marathon Health.
- What companies has Billy Deitch invested in?
- Investments tracked here include Mendel, Olive, OODA Health.
- Where did Billy Deitch go to school?
- Billy Deitch studied at Yale University (B.A., History); Stanford University Graduate School of Business (Master of Business Administration (MBA)).
Same school
Also attended Yale University1,074
Ann Miura-KoCo-founding Partner at FloodgateDavid SzeAdvisory Partner at GreylockMichael SeibelPartner Emeritus at Y CombinatorBen SilbermannCo-founder of PinterestZheela QaiserInvestor at Index VenturesAnthony PhilippakisInvestor at GV (Google Ventures)
+ 1,068 more
Also attended Stanford University Graduate School of Business2,000
Roelof BothaAdvisor & former Steward at Sequoia Capital; SpaceX board memberPeter FentonGeneral Partner at BenchmarkDavid SzeAdvisory Partner at GreylockKatherine BoyleGeneral Partner at Andreessen Horowitz (American Dynamism)Hunter WalkCo-founder & Partner at HomebrewScott SandellExecutive Chairman & Chief Investment Officer at NEA
+ 1,994 more
Shared employers
Also worked at Courier Health3
Also worked at Candid Health3
Also worked at DispatchHealth11
Dusty LiebManaging Partner & Head of Investments at Echo Health VenturesTroy ArnoldPartner, Echo Health Advisors at Echo Health VenturesDaniel GrafGeneral Partner at redalpinePete HudsonManaging Director at Alta PartnersThomas BremnerPartner, Growth Equity at Adams Street PartnersDiana VerrilliGeneral Manager, Navista (a Cardinal Health company) at Oncology Ventures
+ 5 more
Also worked at Brightline7
Emily MeltonInvestor at Threshold VenturesNaomi AllenCo-founder & CEO at BrightlineSonia Priscilla GarcíaFounder at Amae HealthRebecca KavoussiFounder at Nest HealthKari O'RourkeExecutive Officer at Imagine PediatricsGiovanni ColellaExecutive Officer, Director at Vanna
+ 1 more