Meet Our Directors
Ran Whitehead
General Manager
Ran serves as the General Manager for the entire Pacific Diagnostic Laboratories (PDL) organization. He is a seasoned executive with several decades of experience in a wide variety of laboratory settings. He oversees all operational areas of Pacific Diagnostic Laboratories (PDL) within the Central Coast and Southern California regions.
Jenifer Giraud
Director of Sales & Marketing
Jenifer is the Director of Sales & Marketing with over 14 years experience in the laboratory industry. She has a bachelor’s in Behavioral Sciences from CalPoly.
Andrea Anderson
Director Support Services
Andrea is a Clinical Laboratory Scientist with over 30 years’ experience managing outreach laboratory services. Andrea is responsible for management of Patient Service Centers, Client Services and Logistics at Pacific Diagnostic Laboratories (PDL).
Robert Casalegno
Director Laboratory Science and Technology
Robert is responsible for the overall operation and administration of Pacific Diagnostic Laboratories' Scientific Laboratory operations. Ensures that all testing processes, provide the required quality, responsiveness, and efficiency established for all aspects of pre-analytic, analytic and post-analytic phases of the testing process.
Amy Luong
Quality Services Director
Amy oversees the Pacific Diagnostic Laboratories (PDL) Quality Management Program, Regulatory Compliance, Laboratory Accreditation, Training, and Competency Assessment. She is the Program Director for the School of Clinical Laboratory Science and the Phlebotomy Training Program. She also oversees Point-of-Care Testing (POCT) for the system.
Teresa Johnson
Technical Resource Consultant
Teresa is a medical laboratory scientist with extensive experience in laboratory operations and outreach services. Teresa specializes in providing consultative support and project management to the organization.
Jeffrey Downs
Chief Financial Officer
Jeff Downs, MS, CPA, joined Pacific Diagnostic Laboratories in October 2024 and is responsible for revenue cycle, financial reporting, auditing, budgets and forecasts. Jeff has 28 years laboratory experience and received his master’s degree in Biomedical Diagnostics from Arizona State University and a BS in Accounting from Elon University.
David Nichols
Vice President of Business Development
David is the Vice President of Business development and is responsible for strategic planning, sales and marketing. Mr. Nichols has over 30 years of experience in the laboratory business.
