Executive Team

Sean Stanton

Chief Medical Officer, Co-Founder

Brandon Lenox, DO, MPH

Chief Medical Officer, Co-Founder

Hank Heller

Chief Operating Officer

Lesia Hise, CPA

Chief Financial Officer

Sandra Torres, RN

Executive Director of Patient Engagement, Marketing & Diversity

Jim Hoeckendorf

Managing Partner K2 Orlando

Taylor Rice

Managing Partner K2 Winter Garden

Matt Bubalo

Managing Partner K2 Maitland

Victoria Marsh

Managing Partner K2 South Downtown

Marianne McManus

Managing Partner K2 South Downtown

Lora Pea

Managing Partner K2 Tampa

Sean Stanton

Chief Executive Officer, Co-Founder

K2 Medical Research co-founder Sean Stanton has dedicated the last 28 years of his career to creating successful, high-performing research sites. In this latest endeavor, Sean leads a dynamic team of dedicated researchers in connecting the innovative solutions of clinical research to the health problems in our country.

Sean has led the start-up of 26 clinical trial sites, six inpatient hospitals, and 19 outpatient clinics. More than 5,000 clinical trials have been conducted at these sites, leading to more than 50 drug approvals in therapeutic areas including general medicine, mental health, neurodegenerative disease, oncology, vaccine, women’s health, diabetes, pain, heart disease, and sleep disorders.

Sean brings innovative thinking and unique problem-solving skills to clinical research in all aspects of site practices, from purchasing and resourcing, to the use of benchmarking and metrics in business planning to guide strategic clinical trial practice growth. He is frequently sought as an industry expert to speak on topics including building successful clinical research sites, patient recruiting, particularly difficult to recruit populations and decreasing time to complete research studies, protocol design, site selection, patient reported outcomes and other areas. He has advised hospitals and institutions on research site growth strategy and mergers and acquisitions.

After graduating from the University of Cincinnati he joined a team of clinical trial industry experts and has been in this industry ever since. Sean’s passion for clinical research and organizational leadership are a driving force in his life- he works hard every day to make clinical trials a care option for all people. A true people person, he loves to laugh and has a joyful nature that energizes others and allows him to easily motivate a team. Sean’s charisma is only matched by his fierce entrepreneurial spirit- he has a laser sharp focus and a gift for building an enterprise.

He is a member of the Board of Trustees at Western University of Health Sciences in Pomona, CA., founding member of the DAVOS Alzheimer’s Collaboration (DAC), a board member of the Alzheimer’s Dementia Resource Center in Central Florida, Strategic Advisor to the Global Alzheimer’s Platform, a member of CEO, and sits on the board of directors for Young Presidents Organization (YPO).

In his free time, Sean is an avid cyclist and competes at a national level with his K2-sponsored team of 35 members. He has been married for 21 years and says he owes the majority of his success to his amazing wife, Charlotte. They live in Winter Park and share four children, one at Baylor, one at Indiana University, and two high school sophomores.

Brandon Lenox DO, MPH


Brandon Lenox, DO is a board-certified anesthesiologist and epidemiologist with a long and distinguished career in medicine.  As Chief Medical Officer of K2 Medical Research, Dr. Lenox provides the K2 team with over 20 years’ experience in clinical trials, medical research, and clinical practice.  After earning his graduate degree in public health, he went on to graduate from Nova Southeastern University College of Osteopathic Medicine with highest honors then completed his residency training at Johns Hopkins University School of Medicine.   Dr. Lenox served as an epidemiologist with Department of Health and Human Services and Florida Department of Health where he specialized in outbreak research and chronic disease prevention; his ground-breaking work has been featured in numerous peer-reviewed medical journals.  In addition, he has pharmaceutical industry experience in the development of antimicrobials and has been the primary investigator on multiple studies.  Most recently, Dr. Lenox served as the Chairman of the Clinical Governance Board and President of US Anesthesia Partners of Florida where he oversaw clinical and research operations of over 500 clinicians across the state of Florida.  He also served as the Director of Neuroanesthesia and as member of the medical executive committee for Advent Health. 

Dr. Lenox is deeply committed to improving population health.  He has spent most of his life determined to make a difference in the world and is a driving force for fostering change in the medical field and promoting the well-being of our community.  In his free time, he enjoys traveling, surfing and spending quality time with his wife and three active children. 

Lesia Hise, CPA

Bio Coming Soon.

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