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GuaynaboClinical laboratory

Quest Diagnostics

Clinical laboratory in Guaynabo, Puerto Rico.

Call (787) 300-2990Owner? Claim this page
Hours: call to confirmEvery fact citedLast verified 2026-10-14
About

About Quest Diagnostics

Quest Diagnostics is a clinical laboratory in Guaynabo, Puerto Rico, at 107 Gonzalez Guisti Ave, Guaynabo, PR 00966.

Published hours: Mo-Fr 06:00-15:00; Sa 07:00-12:00 (OpenStreetMap).

BuscaIsla lists 36 clinical labs in Guaynabo.

TypeClinical laboratory
MunicipalityGuaynabo
BrandQuest Diagnostics
Coordinates18.40438, -66.10822 (OpenStreetMap)
Last verified2026-10-14
Hours

When to visit

Monday6:00 – 15:00
Tuesday6:00 – 15:00
Wednesday6:00 – 15:00
Thursday6:00 – 15:00
Friday6:00 – 15:00
Saturday7:00 – 12:00
SundayClosed

Source: “Mo-Fr 06:00-15:00; Sa 07:00-12:00 (OpenStreetMap)”

Location

Guaynabo

107 Gonzalez Guisti Ave, Guaynabo, PR 00966

Phone
(787) 300-2990
GPS
18.40438, -66.10822
Web
www.questdiagnostics.com
Get directionsCall first
Closest

Nearest: clinical labs

Nearest to Guaynabo →

Clinical laboratoryLaboratorios BorinquenAvenida Luis Vigoreaux Rivera, Guaynabo, PR 009660.5 km (787) 706-0535 Clinical laboratoryPuerto Rico Citylabs LLC101 Ave San Patricio, Maramar Plaza, Suite G2, Guaynabo, PR 009680.7 km (787) 707-8888 Clinical laboratoryLaboratorio La Lomas1700 Ave. Jesús T. Piñeiro, San Juan, PR 009261.3 km (787) 792-1824 Clinical laboratoryEkocardiodiagnotis Inc.366 Calle Ensenada, Pmb Suite 424, San Juan, PR 009201.4 km (787) 798-4330 Clinical laboratoryLaboratorios BorinquenSan Juan, PR1.6 km Clinical laboratoryLaboratorio Clinico Dcn II1432 Ave Jesus T Pinero, Caparra Terrace, San Juan, PR 009212.0 km (787) 782-3627
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FAQ

Common questions

Answers use only the cited sources. When something isn't published, we say so.

Where is Quest Diagnostics located?

Quest Diagnostics is in Guaynabo, Puerto Rico, at 107 Gonzalez Guisti Ave, Guaynabo, PR 00966.

What is the phone number for Quest Diagnostics?

The published phone number is (787) 300-2990.

What are the hours of Quest Diagnostics?

Published hours: Mo-Fr 06:00-15:00; Sa 07:00-12:00 (OpenStreetMap). Call to confirm, especially on holidays.

What other clinical labs are near Quest Diagnostics?

Laboratorios Borinquen (0.5 km, Guaynabo); Puerto Rico Citylabs LLC (0.7 km, Guaynabo); Laboratorio La Lomas (1.3 km, San Juan); Ekocardiodiagnotis Inc. (1.4 km, San Juan); Laboratorios Borinquen (1.6 km, San Juan); Laboratorio Clinico Dcn II (2.0 km, San Juan).

Does Quest Diagnostics have a website?

Yes: https://www.questdiagnostics.com/our-company/international-locations/puerto-rico/rrl-s/locations/metro

Do I need an appointment or a doctor's order?

Our sources do not publish this. Most clinical tests require a physician's order; call the lab to confirm.

Sources

Where this data comes from

Last verified 2026-10-14

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