Our Team

Executive Team

Charlie Ross, MD, FAAFP, DABOM, DABLM

Chief Medical Officer

Charlie Ross, MD, FAAFP, DABOM, DABLM

Chief Medical Officer

Charles Ross, MD is Board-certified in Family Medicine, Obesity Medicine, and Lifestyle Medicine. He also has the honor of being a Fellow of the American Academy of Family Physicians and a member of the Florida Academy of Family Physicians Journal Committee. Since 2006, he has practiced as a full-time physician in both Primary Care and Urgent Care, sub-specializing in Sports Medicine, Pain Medicine, and Lifestyle Medicine. During this time, he has also served as a Clinical Assistant Professor for the University of South Florida and Nova Southeastern University in Miami, clinically training Resident Physicians in Family Medicine and Internal Medicine, as well as Medical students, Nurse Practitioners, and Physician Assistants. As a clinical investigator, Dr. Ross is primarily interested in research investigating the safety and efficacy of various pharmacologic options for treating such common medical conditions as Obesity, Diabetes, Heart and Kidney Disease, Alzheimer’s and Parkinson’s Disease, and Osteoarthritis of the Knee.

David Billmeier, M.D., CHCQM

CEO & President

David Billmeier, M.D., CHCQM

CEO & President

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.

Frank Garcia, ACRP-CCRP

Clinical Site Director

Frank Garcia, ACRP-CCRP

Clinical Site Director

Frank is a seasoned clinical research leader with extensive experience as a Site Director, Independent Healthcare Consultant, and Regional Director of Clinical Operations. Holding a Bachelor of Science in Biochemistry and Medical Technology, he brings deep scientific knowledge and operational strength to every role. Frank has successfully managed clinical sites across multiple therapeutic areas, known for his ability to lead and motivate teams, drive performance, and maintain a consistent, patient-centered focus. With strong program and project execution skills, he excels in strategic planning, operational oversight, and problem-solving in complex healthcare environments. Originally from Colorado, Frank now enjoys life beachside with his family, where he balances professional excellence with a grounded personal life. His approach to clinical research is rooted in compassion, quality, and collaboration, ensuring that each trial is conducted with the highest regard for patient care, safety, and experience.

Alan Abraham, MBA

Vice President of Contracts and Budgeting

Alan Abraham, MBA

Vice President of Contracts and Budgeting

Alan is a highly accomplished and results-oriented healthcare professional with over 30 years of experience in clinical research, contract negotiation, and project management.
He has held leadership positions at renowned institutions such as the NSABP Foundation, Preferred Primary Care Physicians, and Children's Hospital of Pittsburgh. His expertise encompasses a wide range of areas, including:

Clinical Trial Management: Site activation, budget negotiation, contract management, protocol development, data management, and regulatory compliance.
Project Management: Planning, execution, monitoring, and control of clinical research projects, ensuring timely completion and achieving project objectives.
Contract Negotiation: Negotiating and managing complex clinical trial agreements, including budgets, timelines, and scope of work.
Leadership & Collaboration: Leading and mentoring research teams, fostering strong relationships with sponsors, investigators, and regulatory agencies.

Alan has a proven track record of success in:

Streamlining clinical trial processes and improving operational efficiency.
Achieving and exceeding project timelines and budget targets.
Ensuring compliance with Good Clinical Practice (GCP) guidelines and regulatory requirements.
Driving innovation and implementing best practices in clinical research.

Alan is a recognized leader in the field of clinical research, having received numerous awards and accolades, including the University of Pittsburgh Medical Center ACES Award for outstanding work in an emergency situation and being appointed Chairman of the Collaborative Pediatric Critical Care Research Network (CPCCRN).

Ursula Amon, PhD, MBA

Chief Financial Officer

Ursula Amon, PhD, MBA

Chief Financial Officer

Ursula Amon, MBA, is a seasoned executive with a diverse background spanning business, and real estate development. Holding a Juris Doctor and an Executive MBA, she brings a wealth of knowledge to her roles as a COO and real estate professional. With over two decades of experience, Ursula has excelled in multifaceted leadership positions. As COO, she has overseen all aspects of business operations, including finance, legal, human resources, and marketing. Her expertise includes strategic financial planning, contract negotiations, and implementing robust financial controls. Ursula has managed cross-functional teams, ensuring seamless communication and alignment with business objectives. Her leadership extends to community involvement through active participation in local organizations.

Ryan Dallas

Business Development Director

Ryan Dallas

Business Development Director

Ryan has over 13 years of experience in clinical research and business development. He started out as a CRC at a site in Orlando where he led renal, hepatic, and immunology trials. He also worked in an operations role at a biotech company on a rare disease trial where he led community outreach events to promote clinical trial participation. After that, he led business development at a startup SMO where he built a joint venture site network and sourced clinical trials across neurology, endocrinology, pain, and rheumatology therapeutic areas. He later consulted for a research site network in Texas, landing trials across all therapeutic areas. Ryan has a B.S. in Biology/Mathematics from Western Washington University and is a Lean Six Sigma Black Belt. Originally from Seattle, he understands clinical research from the coordinator, site network, and sponsor perspective. When he's not working on business development for Arrow, he's at the pool, training at his kickboxing gym, creating AI GPTs, cooking, or relaxing with friends and family.

Sub Investigators

Cecille Tapia-Santiago, M.D., M.H.A, F.A.C.O.G.

Investigator

Cecille Tapia-Santiago, M.D., M.H.A, F.A.C.O.G.

Investigator

Dr. Cecille A. Tapia-Santiago, M.D., M.H.A., F.A.C.O.G., is a board-certified OB/GYN and founding partner of Volusia OB/GYN in Port Orange, Florida. A graduate of NYU School of Medicine and Cornell University, she brings over 25 years of clinical experience with advanced training in minimally invasive surgery. Dr. Tapia-Santiago holds hospital appointments across Florida, including Advent Health Daytona Beach and Sarasota Memorial. She has served in key leadership roles such as Chief of Surgery and Medical Director of Obstetrics. In addition to her clinical work, she’s a dedicated educator and global health advocate, leading surgical missions in the Dominican Republic and Guatemala. Bilingual in English and Spanish, she is passionate about women's health, mentorship, and delivering high-quality, compassionate care.

Mandeep Garewal, M.D.

Investigator

Mandeep Garewal, M.D.

Investigator

Born in Toronto, Canada. Bachelors of Science in Chemistry with Distinction from the University of Toronto, Medical School Saba University School of Medicine, Neurologic Residency at St. Louis University Hospital, Chief resident. Sleep Medicine Fellowship at the University of Missouri Columbia. In private practice since 2007. Involved in over 30 clinical trials, peer reviewed journals, poster presentations at National Conferences https://neurologicconsultants.org

Leslee Kubiet, Ph.D, APRN, ANP-BC

Investigator

Leslee Kubiet, Ph.D, APRN, ANP-BC

Investigator

Dr. D’Amato-Kubiet received a PhD from the University of Central Florida (UCF) in 2013 and has been on faculty at UCF since 2006 serving in various capacities of undergraduate and graduate level education. She has been a member of the American Association of Nurse Practitioners since 1998 and received the 2021 Gold Star Preceptor of the Year award from the National Organization of Nurse Practitioner Faculty. In her free time, she loves spending time with her two sons, cooking and traveling the world.

Dany A. Obeid, M.D.

Investigator

Dany A. Obeid, M.D.

Investigator

We are proud to welcome Dr. Obeid, a distinguished physician specializing in sleep medicine, critical care, and pulmonary disease. With an extensive track record also in clinical trials, Dr. Obeid brings deep clinical expertise and research insight to our team. While continuing his leadership in ongoing studies, he joins us at Arrow as an Investigator and Principal Investigator in his key areas of strength, advancing excellence in clinical research and patient care.

April Shadeed, MSN, APRN

Investigator

April Shadeed, MSN, APRN

Investigator

April Shadeed is a board-certified Nurse Practitioner specializing in cardiology. She earned her Master of Science in Nursing from the University of Central Florida (UCF) and has dedicated her career to providing compassionate, high-quality care to patients with cardiovascular conditions. Originally from Daytona Beach, Florida, April combines her clinical expertise with a patient-centered approach, focusing on education, prevention, and improving overall heart health. Outside of her professional life, April enjoys spending time with her husband and two children. She values family time and finds balance through shared experiences and community involvement.

David Henderson, M.D. , FACC

Investigator

David Henderson, M.D. , FACC

Investigator

Dr. David Henderson is a graduate of West Virginia University School of Medicine. Dr. Henderson specializes in cardiovascular disease and internal medicine. Dr. Henderson has been a clinical trials investigator for over 30 years in the cardiometabolic space. His work has contributed to numerous advancements in cardiology and patient care. He continues to stay on the cutting-edge of medicine through his ongoing efforts in clinical research through Arrow Clinical Trials.

Richard Greer, M.D.

Investigator

Richard Greer, M.D.

Investigator

Bio coming soon!

Lee Metchick, M.D., F.A.C.E

Investigator

Lee Metchick, M.D., F.A.C.E

Investigator

Lee Metchick, MD, FACE, is recognized for his exceptional contributions to the field of endocrinology and commitment to patient care. With a medical degree from a prestigious institution and specialized training in endocrinology, Dr. Metchick has dedicated his career to understanding and treating hormonal disorders. His extensive research, publications in medical journals, has advanced the knowledge of endocrine conditions.

Gauri Nayak-Barot, MS, Ph.D., CCRP

Clinical Rater & Investigator

Gauri Nayak-Barot, MS, Ph.D., CCRP

Clinical Rater & Investigator

Gauri Nayak-Barot, MS, PhD, CCRP is a neurological clinical assessor with over eight years of experience delivering high-quality ratings across complex central nervous system trials, including Alzheimer’s disease, Parkinson’s disease, multiple sclerosis, essential tremor, PTSD, and major depressive disorder. She is extensively trained in leading psychiatric, cognitive, movement disorder, and quality-of-life scales, ensuring rigorous, reliable administration and scoring in both onsite and centralized models. Gauri has served as a clinical rater and sub-investigator on numerous phase 2–4 global studies, providing structured clinical interviews, psychometric assessments, and detailed scoring rationales that directly support eligibility decisions and endpoint integrity. She routinely participates in rater calibration and inter-rater reliability exercises, delivers feedback to rating teams, and standardizes assessment workflows to maintain data quality across multi-site programs. With a neuroscience-focused PhD and broad neurology research leadership, she brings a unique blend of scientific depth, operational insight, and patient-centered assessment expertise to every study.

Clinical Team

Andrew White

Pharmacy Manager & Clinical Research Coordinator

Andrew White

Pharmacy Manager & Clinical Research Coordinator

Andrew is a Florida native who was born at Halifax Health. He has been working locally in research for over 10 years. Andrew loves his dog Lydia and likes to take her on bike rides.

Maria Loushin

Regulatory & Compliance Manager

Maria Loushin

Regulatory & Compliance Manager

Maria has over 20 years of experience in the medical field and specifically 10 years in clinical research. Maria loves working in an industry that can truly help the individual who needs it the most while advancing research. She is originally from Brooklyn, NY, and moved to Florida with my husband and 3 children in 2020. Her heart belongs to the NY Rangers and NY Yankees.

Tori Moore, RN

Clinical Research Coordinator

Tori Moore, RN

Clinical Research Coordinator

Bio coming soon!

Albert Garcia

Clinical Research Coordinator

Albert Garcia

Clinical Research Coordinator

Bio coming soon!

Vinoothna Moluguri

Clinical Research Coordinator

Vinoothna Moluguri

Clinical Research Coordinator

Vinoo graduated with a bachelor’s degree in biomedical sciences from the University of South Florida in 2024 along with a minor in religion and healthcare. She intends to further her education in the field of medicine and pursue a career in clinical research in the near future. Vinoo is passionate advancing medical science and improve patient outcomes. Her fascination with clinical research stems from a desire to not just practice medicine but to contribute to the discovery of innovative treatments and therapies, including exploring new avenues that go beyond conventional methods of patient care. In her free time, she enjoys binging shows, cooking and reading.

Garrett Crotty

Regulatory Assistant

Garrett Crotty

Regulatory Assistant

Garrett has a strong background in science, with a Bachelor's degree in Biology and a Master's degree in Conservation Technology. With a detail-oriented and thoughtful personality, he is very flexible in helping wherever he is needed at Arrow.

Kendra Siren

Regulatory Associate

Kendra Siren

Regulatory Associate

Kendra is a Native Floridian with a penchant for organization. As a wife and mom of two, her free time is anything but. Despite her never-ending to-do list, she always makes room for levity. She enjoys spending time with her husband and children, hanging out with friends, and attending concerts.

Andre Cronje

Clinical Research Coordinator

Andre Cronje

Clinical Research Coordinator

Andre received a Bachelor of Science in Biomedical Sciences from the University of South Florida. His background includes patient care as a transporter and Volusia County lifeguard. Andre is a Florida native and enjoys surfing, tennis, and the outdoors.

Roosevelt Major Jr.

Lab Coordinator & IT Manager

Roosevelt Major Jr.

Lab Coordinator & IT Manager

Bio coming soon!

Ren Billmeier, MSW

Psychometric Rater & Clinical Research Coordinator

Ren Billmeier, MSW

Psychometric Rater & Clinical Research Coordinator

Ren received a bachelor's in social work from Florida State University in 2022 and a master's in social work with a concentration in Organizational Leadership and Policy Practice from University of Denver in 2023. She has worked in both clinical and administrative capacities in multiple nonprofits. Ren is passionate about incorporating DEI work and advocacy into her everyday life. In her free time, she enjoys reading, spending time outdoors, and playing with her dog, Lucy.

Cheryl Cowser

Research Navigator

Cheryl Cowser

Research Navigator

Bio coming soon!

George Beauchamp

QA Specialist

George Beauchamp

QA Specialist

George was born on a chicken farm in the wild uplands of Central Florida which gave him a profound appreciation of the chicken’s distant ancestors, dinosaurs. He passionately pursues education on the paleontological past, but at Arrow, he hopes to make a mark on the future by imbuing everyone he speaks to about the importance of clinical research and its impact on creating a better tomorrow. When he is not educating prospective participants, he actively hosts and participates in Dungeons and Dragons groups.

Michael-Troy Mitchum

Psychometric Rater

Michael-Troy Mitchum

Psychometric Rater

Marketing, Recruiting & Administrative Team

Shawn Goepfert

Marketing Manager & Community Ambassador

Shawn Goepfert

Marketing Manager & Community Ambassador

Shawn can be found in the community when he is not recruiting patients. He is a mainstay in the Greater Daytona Beach service clubs and currently serves as a board member of the Miracle League of Volusia. He loves to volunteer his time coaching youth flag football.