Meet The Team

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Sue Barbosa, MS, CLS, MT(ASCP)

Chief Executive Officer

Sue Barbosa is the Chief Executive Officer of Pacific Toxicology Laboratories. Her degrees include a bachelor's in Medical Technology and an MS in Information Systems Management. She is also a certified CLS. Sue began her career as a Laboratory Manager in a hospital laboratory before taking on various management positions for laboratory software companies. Sue has managed cross-functional teams in laboratory operations as well as IT. Sue embodies a lifetime of dedication in the laboratory, and she employs her wide range of expertise to further the growth and technical advancement of Pactox.

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Rana Ofavezi, MBA, MSF, ChemE

VP Marketing and Compliance

Rana Ostadrahimi is Vice President of Marketing and Compliance. She holds a bachelor’s degree in Chemical Engineering and a master's degree in Business Administration and Finance. She joined PacTox in 2011 and is responsible for sales strategy and overall management of the sales force. She has a decade of international experience with all aspects of sales and marketing in the chemical industry. Rana will focus on PacTox’s continuous growth and developing strategies to meet PacTox’s clients satisfaction

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Ali Mikhchi,CLS, MT(ASCP)

Laboratory Manager

Ali Mikhchi joined Pacific Toxicology Laboratories in 2006. With over 18 years experience as a Technical and Operations Laboratory Manager of large and small California independent reference laboratories, Ali is proficient and knowledgable in several areas of the lab including extensive background in Toxicology and Medical Surveillance. Mr. Mikhchi has the leadership skills and expertise to build relationships with our employees, clients, and associates.

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Saeed Khalaj


With a PhD in Natural Science and over 20 years of experience in laboratory work, Saeed Khalaj is a certified scientist in Chemistry and Molecular Biology through the American Society for Clinical Pathology (ASCP) and works as a Responsible Person (RP) in SAMSHA labs by NLCP. His expertise has extended to serving as a Technical Supervisor of a CAP certified lab and CAP Forensic Drug Testing (FDT) inspector, as well as also serving as an assistant professor conducting research and education. His goal is to obtain two board certifications for the position of Lab Director in both forensic and clinical labs.

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Joseph Rodriguez

IT Director

Joseph Rodriguez is a seasoned professional with 13 years of dedicated service in the medical industry, primarily as an IT professional providing technical support and consultation services. Within the first few months as Director of Information Technology at PacTox, he's had the privilege of steering the IT department towards achieving remarkable milestones. Joseph takes immense pride in fortifying our security measures, optimizing our systems for efficiency, and simultaneously lowering costs. He would also like to add it's been an honor to contribute to the organization's success while safeguarding its digital assets and fostering innovation.

Other Staff

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Jeff Maier, CTS, RP

Lab Technical Director