Diverse Biotech Medical Team
Pioneering Science | A Proven Track Record of Success
Our Inventors
Scientific Leadership

Paul Hershberger, PhD
Chief Chemist
Dr. Hershberger leads our chemistry team in developing novel synthetic cannabinoid compounds and drug conjugates.

Philip Arlen, PhD
Chief Scientific Officer
Dr. Arlen oversees all scientific operations and research strategy at Diverse Biotech.
Our Medical Team
World-Class Scientific Advisory Board
Armand B. Cognetta Jr, MD
Florida State University
Dr. Cognetta is one of the nation's leading dermatologists and founder of Dermatology Associates of Tallahassee. He is an associate professor of dermatology and Clinical professor and Chief of the Division of Dermatology at FSU College of Medicine. He specializes in early detection and treatment of skin cancer and is a fellowship director at the American College of MOHs Micrographic Surgery and Cutaneous Oncology.
Neal D. Shore, MD, FACS
Carolina Urologic Research Center
Dr. Shore is the Medical Director for the Carolina Urologic Research Center. He has conducted more than 350 clinical trials focusing on GU Oncology and serves on executive boards including the Society of Urologic Oncology and Bladder Cancer Advocacy Network. A graduate of Duke University and Duke Medical School, he has more than 200 peer reviewed publications.
Douglas Heldreth, MD
Florida Cancer Specialists
Dr. Heldreth is a board-certified oncologist for Florida Cancer Specialists & Research Institute. He received his medical degree from West Virginia University School of Medicine and completed his fellowship in Medical Oncology at the University of South Florida. He frequently serves as a sub-investigator for Phase 1, 2 and 3 clinical trial research studies.
Joyce Ann O'Shaughnessy, MD
Texas Oncology & US Oncology Research
Dr. O'Shaughnessy is considered one of the top three experts in breast cancer in the United States. She is Co-Chair of Breast Cancer Research and Chair of Breast Cancer Prevention Research at Baylor-Sammons Cancer Center and US Oncology Network, and a member of the Scientific Advisory Board for US Oncology Research Network.
Dr. John Patrick, MD
Virginia Commonwealth University
Dr. Patrick is Executive Vice President and Chief Medical Officer. He earned his MD from the Medical College of Virginia (now VCU). He is a board certified and practicing anesthesiologist, Chairman of the Medical Committee directing clinical trials, and serves on the Board of Directors of Diverse Biotech.

Michael Vaughn, MD, PhD
Medical College of Virginia / VCU
Dr. Vaughn is Director of Clinical Development. He earned his PhD at the Department of Microbiology and Immunology at VCU. He is Board Certified in Internal Medicine, Emergency Medicine, and Allergy & Immunology. In 2023 he was selected by his peers as one of San Antonio's Best Doctors.

William Fisher, MBA
Founder | Wharton Business School
William Fisher, founder of Diverse Biotech, assembled a world-class team of doctors and scientists to pioneer novel drug conjugate therapies. His visionary leadership has propelled Diverse Biotech to the forefront of transformative cancer therapies.
Ron Menezes
Board of Directors | Brigham Young University
Ron brings 20+ years of experience across publicly-traded healthcare, life sciences, and pharmaceutical companies including AltrixBio, Sientra Inc., Allergan, Abbott, Pfizer, and Eli Lilly. He is a visionary commercial expert adept at spearheading enterprise turnarounds and launching successful products to market.
Interested in Joining Our Mission?
We are always looking for talented individuals passionate about advancing cancer treatment.
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