Vantage is the at-home testing brand of LabX Diagnostics; Vantage kits are processed by LabX Diagnostic Systems, a CLIA-certified (10D2067145), COLA-accredited laboratory in Tampa, FL. Order Vantage tests at labxdiagnostics.com/at-home.
LabX Diagnostic Systems is a CLIA-certified, COLA-accredited clinical and toxicology laboratory in Tampa, Florida, led by a board-certified physician Laboratory Director. We combine definitive instrumentation with a personal, provider-first approach — treating every specimen like it matters, because it does.
Laboratory Director
Dr. Xiaohui Zhang serves as Laboratory Director of LabX Diagnostic Systems. A board-certified pathologist holding both an M.D. and a Ph.D., Dr. Zhang is board-certified in Anatomic and Clinical Pathology by the American Board of Pathology, with a subspecialty certification in Hematology. He served as a Professor of Medicine at the University of South Florida Morsani College of Medicine and as a Senior Member of the Department of Hematopathology and Laboratory Medicine at the H. Lee Moffitt Cancer Center & Research Institute, and has authored more than 60 peer-reviewed publications and multiple textbook chapters in laboratory and diagnostic medicine.
- M.D. and Ph.D.
- Board-certified in Anatomic & Clinical Pathology — American Board of Pathology
- Subspecialty certification in Hematology — American Board of Pathology
- Professor of Medicine, University of South Florida Morsani College of Medicine
- Former Senior Member, H. Lee Moffitt Cancer Center & Research Institute
- Member, College of American Pathologists (CAP)
- Author of 60+ peer-reviewed publications and multiple textbook chapters
Accreditations & certifications
CLIA-certified specialties
LabX is federally certified to perform testing across these specialties: