What does it mean to live well?

Lifespan has nearly doubled since 1900. But adding years to life hasn’t led to a higher quality of it.

We believe that medical science breakthroughs–including hormone, peptide, and regenerative cell therapy–can help millions explore their body’s potential and unlock a path to living vibrantly for decades.

With a focus on knowledge, medicine, and navigation, we exist to create lifetimes with more joy and less disease.

Let's see where we can go together.

our values

The Heartbeat of Humanaut

Admire Kindness

Integrity matters.

Be Open To Change

Life is motion.

Do the Work

Better tomorrows start today.

Chase Excellence

People count on you.

Enjoy the Journey

This is a memory in progress.

IN THE TEAM'S WORDS

“From our internal ways of working to the services we provide clients, we invite people to bring their whole selves to Humanaut."

Elliot Karathanasis
CPO, CO-FOUNDER

IN THE TEAM'S WORDS

“It’s a privilege to work alongside an incredibly talented group of people who share my passion for making a positive impact on society. We’re well on our way to increasing human healthspan!"

Jenny Epsey
SR. DIRECTOR, BUSINESS DEVELOPMENT

IN THE TEAM'S WORDS

“Our personalized treatments will impact individuals for years to come. I’m proud to be at the forefront of health care for quality living.”

Manasi Ellis
SUPPLY CHAIN MANAGER

Meet The Senior Team

Humanaut Health is led by seasoned entrepreneurs, physicians, and health and wellness leaders who share a passion for health optimization and longevity science. We embrace exceptional human beings with the proven ability to translate vision to growth.

Photo of Humanaut Health Chief Executive Officer Jim Donnelly

Jim Donnelly

Co-Founder, CEO

Photo of Humanaut Health Chief Medical Officer Amy Killen, MD

Amy Killen

MD, Co-Founder, CMO

Photo of Humanaut Health Chief of Regenerative Medicine, Harry Adelson, ND

Harry Adelson

ND, Co-Founder, CRM

Photo of Humanaut Health Chief Technology Officer, Tony Cheng

Tony Cheng

Co-Founder, CTO

Photo of Humanaut Health Chief Product Officer, Elliot Karathanasis

Elliot Karathanasis

Co-Founder, CPO

Photo of Humanaut Health PLLC Group Medical Director, P. Jeffrey Smith, DO

P. Jeffrey Smith

DO, Group Medical Director

Photo of Humanaut Health Director of Functional Medicine, Ernie Navarro, MD, ABAARM

Ernie Navarro

MD, ABAARM, Director of Medicine

Photo of VP Operations, Nikki Case

Nikki Case

VP, Operations

Photo of Humanaut Health VP Marketing, Kerri Williams

Kerri Williams

VP, Marketing

Photo of Humanaut Health General Counsel, Tabor Pittman

Tabor Pittman

General Counsel

Claire Siegel

VP, Product & Coach Operations

Photo of Humanaut Health Chief Executive Officer Jim Donnelly

Co-Founder, CEO

Jim Donnelly

Seasoned experiential retail entrepreneur, co-founder/former CEO of Restore Hyper Wellness, and co-founder of IgoUgo, acquired by Sabre Holdings

Photo of Humanaut Health Chief Medical Officer Amy Killen, MD

MD, Co-Founder, CMO

Amy Killen

Longevity physician, expert in hormones and sexual health, board-certified emergency physician, international speaker, and entrepreneur

Photo of Humanaut Health Chief of Regenerative Medicine, Harry Adelson, ND

ND, Co-Founder, CRM

Harry Adelson

Naturopathic physician and founder of Docere Clinics, a global leader in regenerative medicine for musculoskeletal pain

Photo of Humanaut Health Chief Technology Officer, Tony Cheng

Co-Founder, CTO

Tony Cheng

Co-founder of IgoUgo and Archway Health, a value-based care analytics & risk management company acquired by Coverys in 2022

Photo of Humanaut Health Chief Product Officer, Elliot Karathanasis

Co-Founder, CPO

Elliot Karathanasis

Former Pfizer division General Counsel and seasoned founder CEO across hospitality, consumer wellness, and investment management ventures

Photo of Humanaut Health PLLC Group Medical Director, P. Jeffrey Smith, DO

DO, Group Medical Director

P. Jeffrey Smith

Osteopathic physician with board certification in physical medicine/rehabilitation and founder/operator of a leading regional pain management practice

Photo of Humanaut Health Director of Functional Medicine, Ernie Navarro, MD, ABAARM

MD, ABAARM, Director of Medicine

Ernie Navarro

Longevity physician, board-certified emergency physician, and leading US concierge medicine provider with a focus on precision medicine

Photo of VP Operations, Nikki Case

VP, Operations

Nikki Case

Seasoned healthcare operations executive for new and growth venture initiatives, including Thrive Vet Care and Kins Physical Therapy

Photo of Humanaut Health VP Marketing, Kerri Williams

VP, Marketing

Kerri Williams

Multi-disciplinary growth executive across venture stages, including Talkspace Therapy, Virta Health, and L'Oreal USA

Photo of Humanaut Health General Counsel, Tabor Pittman

General Counsel

Tabor Pittman

Legal executive with finance, accounting, and retail wellness expertise, including Goldman Sachs and Restore Hyper Wellness

VP, Product & Coach Operations

Claire Siegel

With the right talent,
anything is possible.