Ethically Engaged
Transparency, trust, and integrity in every interaction — the foundation of every relationship we build.

A longevity and advanced health practice for those who demand more — from life, from medicine, and from themselves.
Our Story
We exist to bring trust, transparency, and empathy into medicine. When people are truly heard and their needs addressed with precision, remarkable things happen. They stop managing their health and start leading their lives.

Our Values
A way of working, built into every appointment, every recommendation, every relationship.
Transparency, trust, and integrity in every interaction — the foundation of every relationship we build.
Every decision is guided by one question: is this in our client's best interest? We are advocates and stewards of positive change.
The highest clinical standards, continuously integrating leading-edge technology and research.
Essential treatments. Fair price. We do not advocate unnecessary purchases — ever.
Humanistic, not robotic. Invested in every individual story and the relationships that sustain long-term health.
Empowering people to pursue what matters and do what they love, beyond healing bodies.
The People Behind Humanaut
Founded by entrepreneurs, physicians, and leading specialists in regenerative medicine, sexual health, and advanced therapies — united by one conviction: exceptional people deserve exceptional healthcare.

Jim Donnelley
Chief Executive Officer and Co-Founder

Amy Killen, MD
Chief Medical Officer and Co-Founder

Harry Adelson, ND
Chief of Regenerative Medicine and Co-Founder

Elliot Karathanasis
Chief Product Officer and Co-Founder

Tony Cheng
Chief Technology Officer & Co-Founder

Ben Beverly
Chief Operating Officer

Richard Chang
Chief Revenue Officer

P. Jeffrey Smith, DO
Group Medical Director, Humanaut PLLC

Ernesto Navarro, MD, ABAARM
Chief Longevity Officer, Humanaut PLLC

Kristen Gutierrez
Vice President, Sales

Jeff Watton
Vice President, Finance

Eric Sugarman
Vice President, Professional Sport + Entertainment

Jane Karathanasis
Head of Human Resources

Tabor Pittman
General Counsel

Become a Franchise Partner
We're expanding. If you're an entrepreneur passionate about redefining healthcare in your community, we want to hear from you.
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Take the first step toward a life built for everything ahead.