DialClerk Directory

Quest Diagnostics locations · California

Quest Diagnostics — 26672 Portola Pkwy, Lake Forest

Lake Forest, CA 92610

lab patient service centerLocation R7K

lab location

Quest Diagnostics — 26672 Portola Pkwy, Lake Forest

Official page read
Location phone657-732-2332Published hours

Monday: 08:00–16:30; Tuesday: 08:00–16:30; Wednesday: 08:00–16:30; Thursday: 08:00–16:30; Friday: 08:00–16:30; Saturday: Closed; Sunday: Closed

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California

Mailing address

Not researched for this route

Physical address
26672 Portola Pkwy Lake Forest, CA 92610

Physical facility address. A location listing does not establish where to send claims, specimens or prescriptions.

Phone published for this location. Operating status not independently confirmed. A phone published for this facility does not establish that local staff answer directly. Official facility title: Quest Diagnostics - Foothill Ranch - Employer Drug Testing Not Offered. The two official pages differ on the facility address. Corporate page lists 26672 Portola Pkwy Foothill Ranch, CA 92610. Its fax is withheld pending review. No matching-location fax has been added from this reviewed source. No location email was published in the reviewed pages.

View source ↗ · Source checked 2026-10-22 · Official facility fax and service details ↗

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Wait time: not establishedBest time from caller reports: not established. Published hours are not a wait forecast.

Location details

Published services

Laboratory specimen collection

Hours and exceptions

Official location page hours, reviewed 2026-10-22. Times are local to the facility; holiday and service-specific hours may differ.

Location fax

Not published in the reviewed source

Location email

Not published in the reviewed source

Official location page ↗ · Organization-wide support

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