Circumference is a team of laboratory specialists founded in 2015 that focuses solely on helping implement patient testing in laboratories across the U.S. Our team has 20+ years of experience in outfitting and managing laboratories, working with CLIA and COLA, developing methods, and delivering high-quality, accurate, rapid results to our clients. We’ve processed over 41 million tests and passed over 200 audits since inception. We work with all levels of laboratory testing from POC waiver devices to high complexity molecular, toxicology, and PCR applications.






We Currently Operate In:

Our Team
Our Team

Dr. Phil Radford, PhD. - CEO and Founder

Jaclyn North - Director

Caroline Weatherhead - Laboratory Specialist Supervisor

Angee Davis - Operations Administrative Assistant

Sydney Bruck - Senior Data Analyst

Shayla Gilbert - Operations Support Associate

Harshil Patel - Laboratory Specialist II - TOX

Darina Aynaeva - Laboratory Specialist II - TOX

Veronda Williams - Laboratory Specialist I - TOX

Ahmed Haija - Laboratory Specialist II - MOL

Danielle Murphy - Data Analyst I

Calvin Johnson - Molecular Application Support Specialist

Jasmine Wolf - Laboratory Production Associate I

Isabelle Hamm - Laboratory Production Associate I
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