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Physician & Healthcare Providers Laboratory Services

TRDL is a fully-equipped full-service clinical laboratory, in Yorba Linda, California. We serve employers and healthcare providers in Southern California with fast, accurate, and reliable results. Use our easy-to-use, secure portal for viewing and managing test inquiries and results online.


Office Desk

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Medical form with stethoscope

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Doctor Using Digital Tablet

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Young Scientist

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