DialClerk Directory

Quest Diagnostics locations · Missouri

Quest Diagnostics — 4101 Mexico Rd, Saint Peters

Saint Peters, MO 63376

lab patient service centerLocation SPT

lab location

Quest Diagnostics — 4101 Mexico Rd, Saint Peters

Official page read
Location phone636-441-2938Fax

636-441-5988

Published hours

Monday: 06:00–17:00; Tuesday: 06:00–17:00; Wednesday: 06:00–17:00; Thursday: 06:00–17:00; Friday: 06:00–17:00; Saturday: 07:00–13:00; Sunday: Closed

Product, plan and location

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Missouri

Mailing address

Not researched for this route

Physical address
4101 Mexico Rd Ste E Saint Peters, MO 63376

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. 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 email

Not published in the reviewed source

Official location page ↗ · Organization-wide support

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