Medical laboratory · Naperville, Illinois

Quest Diagnostics

640 S Washington St Ste 140, Naperville, IL 60540 · (630) 778-9606 · locations.questdiagnostics.com

On the record since August 10, 2026 · last read September 24, 2026 · 15 facts held

Hours

Monday05:30-15:30
Tuesday05:30-15:30
Wednesday05:30-15:30
Thursday05:30-15:30
Friday05:30-15:30
Saturday06:00-13:00
Sundayclosed

Observed August 12, 2026opening hours as published on the Google profile — the business's own claim, not observed behaviour

The building

County records. A storefront outlives its tenants, which makes this the most durable thing on the page.

Building
13,270 sq ft, built 1993
Type
commercial
Owner of record
OGDEN 686 LLC
Property tax
$122,252 for 2025
Tax billed, by year
2020$118,898
2021$111,057
2022$111,225
2023$128,566
2024$122,656

Observed August 15, 2026City of Naperville GIS, the same publisher as the permit feed: the building and parcel polygons containing this business's coordinates. The footage is the WHOLE structure, which for a single-tenant building is this business's space

Also on the record

Website
reachableSep 24, 2026
How it describes itself
Find a Quest Diagnostics location in the United States to complete sample collection for doctor-ordered or self-purchased lab tests.Sep 24, 2026
Website last updated
copyright 2025Aug 15, 2026
Status
openAug 10, 2026
Ratings counted
210Aug 10, 2026
Rating
3.3Aug 10, 2026