About Us

The Genesis of GT Medical Technologies and GammaTile® Therapy

For decades, clinicians have sought better treatment options for patients with brain tumors that would effectively target tumor cells while preserving eloquent tissue.
Driven to overcome the limitations of current treatments and raise the standard of care, a group of brain tumor specialists joined forces to address this critical, unmet need. Together with medical device experts, they developed GammaTile Therapy, Surgically Targeted Radiation Therapy (STaRT) for recurrent intracranial neoplasms.

Our Leadership

Matthew Liekens

Matthew E. Likens
President and Chief Executive Officer

BIO
David Brachman

David G. Brachman, MD, FASTRO
Co-Founder and Chief Technology Officer

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Brian Martin

Brian Martin, MBA
Vice President of Strategy and Corporate Development

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Hernan Lopez

Hernan Lopez
Vice President of Operations

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Craig Bushnell

Craig Bushnell
Vice President of Sales and Marketing

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Lisa Misell

Lisa Misell, Ph.D.
Vice President of Clinical Affairs

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Our Founders

David Brachman

David G. Brachman, MD, FASTRO
Co-Founder and Chief Technology Officer

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HeYoung McBride

Heyoung McBride, M.D.
Cofounder

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Peter Nakaji

Peter Nakaji, MD
Cofounder

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Emad Youssef

The late Emad Youssef, MD
Cofounder

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Theresa Thomas

Theresa Thomas, MS, CCRC
Cofounder

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