Meet the Staff

Expert People

S&G Labs Hawaii is under the direction of Alan Wu, PhD, who is recognized as a pioneer and worldwide leading expert researcher and educator in the field of clinical chemistry and toxicology. As the author/editor of numerous textbooks and publications, Dr. Wu brings more than 35 years of laboratory experience to our customers. Dr. Wu leads a team of toxicologists, clinical chemists and laboratory scientists to provide innovative testing panels and methods offering precise, fast and accurate results.

Lynn Welch, MD


Alan Wu, PhD, D.A.B.C.C.

Laboratory Director

Sarah Beth Kosem

Lab Operations Supervisor

Kimberly Clark, MS, cASCP

Scientific Director

Katie Renberg, BSc, cAAB

Lab Manager

Stefanie Castro, BSN, RN

VP Client Relations

Crystal Nobriga

VP of Communications

Danielle Laws

Account Operations Manager

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