John Stevens
Managing Partner at Headwaters Capital Partners
Redwood City, California
John Stevens, Managing Partner at Headwaters Capital Partners is an active investor based in Redwood City, California. This profile covers what John Stevens backs, at which stage, and how founders can reach out in 2026.
Dr. John Stevens is a Co-Founder of RegenMed Systems. He is an Angel Investor. Dr. Stevens was previously a director of Clene Nanomedicine from November 2015 until the Reverse Recapitalization, and he served as the Chairman of the Clene Nanomedicine board from March 2013 to July 2015. Dr. Stevens founded Heartport, Inc., a minimally invasive cardiac surgery company that was acquired by Johnson & Johnson in 2001, and served as the Chief Technology Officer with that company from 1996 to 2001. Dr. Stevens co-founded Amp Resources, a renewable energy company, and served as the Executive Chairman of the board. Dr. Stevens co-founded Sundrop Fuels, Inc. and served as the Chief Executive Officer. Dr. Stevens co-founded HeartFlow, Inc., a medical technology company focusing on cardiovascular disease, and served as the Chief Executive Officer from April 2010 to May 2020, and again from January 2021 to February 2022. He received aa degree in General Surgery from Stanford University in 1992. Dr. Stevens received a bachelor's degree of science in psychology and communications from the University of Utah in 1982. He obtained a Doctor of Medicine degree in medicine from Stanford University in June 1987. He served as a Board Member at Winx.
- Investor type
- AngelVCPE
- Stages
- Pre SeedSeed
- Invests in
- Healthcare & BiotechMedTech & Medical Devices
- Location
- Redwood City, California
- Typical check
- $1M
- Past investments
- 2
Notable investments
How to reach John Stevens
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Round Funded. "John Stevens." Round Funded investor database, updated September 27, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/john-stevens-155726-3
Frequently Asked Questions
What does John Stevens invest in?
John Stevens invests in Healthcare & Biotech and MedTech & Medical Devices, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does John Stevens invest at?
John Stevens typically invests at Pre Seed and Seed. Lead with traction that fits the stage when you reach out.
What is John Stevens's typical check size?
John Stevens typically writes checks around $1M. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
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