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Meet Our Leaders

Our Founders


Vishnu Nitta, Chief Executive Officer

Vishnu began his clinical research career after earning a Master's degree in Medical Sciences from Boston University. Beginning with his thesis, "The Role of Epigenetics in the Treatment of Alzheimer's Disease," Vishnu has been a fervent advocate of proactive approaches to bettering neurodegeneration. He has spent the last decade working in various roles in the clinical research industry with the mission of advancing medical treatments for all indications. Vishnu has operated research protocols from both the patient-facing site operations level and the project management element. Prior to founding Arrow Clinical Trials, Vishnu served as a co-founder / operator in another clinical research venture and as an executive consultant assisting research centers optimize their growth strategy.


David Billmeier, M.D., Chief Medical Officer

David Billmeier, M.D. is a board-certified Family Medicine and Hospice and Palliative Medicine doctor. He has been serving the greater Daytona area for over 25 years not only in his private practice, but also as Medical Director for Volusia Health Network with Halifax Health Hospital, and as a medical consultant for NASCAR and Porsche Racing. Dr. Billmeier has been involved in clinical research as both a principal investigator and sub-investigator for the past 10 years covering a broad range of therapeutic areas including central nervous system (CNS) with specific expertise in neurodegenerative disorders, metabolic and endocrine disorders, psychiatric disorders, dermatological disorders, and cardiological conditions to name some conditions of particular interest.

Executive Team


Desiree Martinez

VP, Business Operations


Erica Mayer

VP, Clinical Operations


Ram Nitta

VP, Project Management