Quest Patient Service Center
Quest empowers people to take action to improve health outcomes. Derived from the world's largest database of clinical lab results, our diagnostic insights reveal new avenues to identify and treat disease, inspire healthy behaviors and improve health care management. Quest annually serves one in three adult Americans and half the physicians and hospitals in the United States, and our 47,000 employees understand that, in the right hands and with the right context, our diagnostic insights can inspire actions that transform lives.
Quest is listed on the New York Stock Exchange (NYSE) under ticker symbol DGX.
Closest locations to this laboratory
At-home lab appointmentSkip the waiting room, we bring the lab to you.
Walk-in lab appointment65 N Madison Ave Ste 305, Pasadena, CA, 91101
Walk-in lab appointment960 E Green St Ste 164, Pasadena, CA, 91106
Walk-in lab appointment50 Bellefontaine St Ste 101, Pasadena, CA, 91105
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