Building A Better Future

What Drives Us

Today, over 50% of people

know someone with dementia.

By 2050, over 153 million people

will live with dementia across the world.

These are more than just numbers to us – these are family members and loved ones. They’re who we care for, and who we aim to help.

Who we are

At SPARK Neuro, we’re on a mission to transform the future of brain health.

Our vision is to make brain health measurement universal, accessible, and part of standard care for everyone. 

We’re pioneering a new frontier where caring for your brain is as routine as measuring your blood pressure.


Spencer Gerrol

Founder & CEO

Spencer has dedicated his career to translating theoretical science into real-world applications using biometric technologies. Driven by his cognitive science and human factors background, his efforts have resulted in securing over $35M in funding for SPARK Neuro from leading investment funds.

Spencer has been recognized for his work in leading publications such as CNN, Forbes, and The Wall Street Journal, and he was named a Global Shaper by the World Economic Forum. He has delivered speeches at TED, the United Nations, and The White House, where he was honored for founding one of the top 100 companies by young entrepreneurs.

Marinela Gombosev

President & COO

Marinela Gombosev is a seasoned operator and executive leader who has spent the last decade bringing innovative medical device diagnostic technologies to market. Marinela has over 15 years of leadership experience in product development, operations, and execution of go-to-market strategies in regulated industries. 

Formerly the CEO of a medical technology company, Marinela led regulatory approval, commercial launch, and market adoption of a neurodiagnostic device to achieve a ranking of #131 on the Inc. 500 fastest growing private companies in America. This product was adopted in 450 clinics, serving over 60,000 patients during her tenure.

Harry Leider, MD, MBA

Chief Strategy Officer

Harry Leider has over 25 years of experience serving as a senior healthcare executive and board member for numerous medical technology and care delivery companies. He was Chief Medical Officer at Walgreens and Care Improvement Plus, a Medicare Advantage Plan, along with other innovative healthcare companies.

He has published 25 peer-reviewed journal articles, and presented at numerous conferences and events, including at the White House on aging. He is a core faculty member and past-President of the American Association of Physician Leadership, and has been on the faculty of Harvard Medical School, the Johns Hopkins Carey School of Business, and the University of Pennsylvania School of Medicine. Dr. Leider’s passion is leveraging his business, leadership, and clinical skills to improve the health of people struggling with chronic conditions related to aging.

Richard Caselli, MD

Medical Director

With a distinguished 35-year career at the Mayo Clinic, Dr. Caselli’s profound contributions to neurology and cognitive aging are invaluable to the groundbreaking work at SPARK Neuro. At Mayo Clinic, Dr. Caselli was formerly Chair of the Department of Neurology, Medical Director of Patient Experience, and Clinical Core Director of the Arizona Alzheimer’s Disease Center.  

Dr. Caselli’s research, supported by over 25 years of continuous federal and state funding, has yielded over 300 original scientific publications across the most prestigious medical journals including the New England Journal of Medicine, Science, Neurology, and Nature, among others. Dr. Caselli earned numerous awards including Educator of the Year, Distinguished Clinician, and Distinguished Investigator, while also having ranked 99th percentile in patient satisfaction.

Our Advisors

Guided by the best and brightest.

Vanessa Raymont, MBChB

University of Oxford Sr. Clinical Researcher, R&D Director at Oxford Health NHS Foundation Trust

Jonathan Fielding, MD

Former Director of the Los Angeles County Department of Public Health, and Distinguished Professor at UCLA’s Fielding School of Public Health

Howard Fullman, MD

Former Medical Director and Chief of Staff at Kaiser Permanente​

Shubhendu Trivedi, PhD

Research Associate at MIT’s Computer Science and Artificial Intelligence Laboratory

Join Us

At SPARK Neuro, we’re not just a company.

We’re a movement. 

Our team of world-class neuroscientists, neurologists, engineers, and AI experts is dedicated to making brain health care accessible and standard for everyone. Welcome to the future of brain health. Welcome to SPARK Neuro.