# Quest Diagnostics Patient Service Center Locations — U.S. & Mexico location dataset

All 2,301 locations in U.S. & Mexico, as one CSV: 48 fields per record, 49 states, file built October 10, 2026. $29 one-time, with up to 10 real rows free before you buy.

Canonical URL: https://locationlists.com/data/quest-diagnostics-locations

2,301 Quest Diagnostics patient service centers, read every week from Quest's own location pages: 2,252 in 49 states including DC (California 367, Florida 264, Texas 193, New York 161) and 49 in Mexico. Each row has Quest's site code, the site type (1,990 Quest patient service centers, 234 partner-operated sites, 28 third-party draw sites), who runs it, phone, fax (2,301 rows), hours by day and the online booking link (2,023). 137 sit inside a retail store, named in hostRetailer (Walmart 55, Safeway 52). Quest Diagnostics (NYSE: DGX) reported approximately 2,301 patient service centers in its 10-K for 2025.

## The figures

- Records: 2,301 locations (2,252 US)
- States: 49
- Coverage: U.S. & Mexico
- Fields: 48
- Price: $29 one-time, CSV download, commercial license (https://locationlists.com/license)
- File built on October 10, 2026. Not on an automatic refresh schedule.
- File last modified: 2026-10-10

The file has all 2,301 locations across 49 states in one download. Building the same list by searching one area at a time tends to miss places, and a missed place looks like a gap in coverage that is not really there.

## Fields

- `siteCode`: Quest's own code for the site (e.g. AA)
- `name`: Site name as Quest publishes it (e.g. Quest Diagnostics - Anchorage Laurel Street)
- `status`: Open on every row (e.g. Open)
- `brand`: The brand (e.g. Quest Diagnostics)
- `parentCompany`: The listed company that owns the brand (e.g. Quest Diagnostics Incorporated)
- `operator`: Who runs the site: Quest, a Quest joint venture (Sonora Quest Laboratories...) or a partner (e.g. Quest Diagnostics)
- `siteName`: The site's own name in Quest's record (e.g. Anchorage Laurel Street)
- `siteType`: Quest patient service center, partner-operated site, third-party draw site, office or laboratory (e.g. Quest patient service center)
- `address`: Street address (e.g. 4120 Laurel St)
- `address2`: Suite, unit or second address line, where published (e.g. Ste 103)
- `city`: City (e.g. Anchorage)
- `state`: Two-letter state code; the province or region code outside the U.S., where published (e.g. AK)
- `zip`: ZIP code, or the postal code outside the U.S. (e.g. 99508)
- `country`: Two-letter country code (e.g. US)
- `addressLines`: Every address line as Quest publishes it, joined with | (e.g. 4120 Laurel St | Ste 103 | Anchorage, AK 99508)
- `phone`: Phone number (e.g. (907) 201-1855)
- `fax`: Fax number, where published (e.g. (907) 563-7674)
- `latitude`: Latitude (e.g. 61.1833834)
- `longitude`: Longitude (e.g. -149.835153399)
- `hours`: Opening hours for the week, one line (e.g. Mon 07:30-16:30; Tue 07:30-16:30; Wed 07:30-16:30; Thu...)
- `hours_mon`: Monday hours (e.g. 07:30-16:30)
- `hours_tue`: Tuesday hours (e.g. 07:30-16:30)
- `hours_wed`: Wednesday hours (e.g. 07:30-16:30)
- `hours_thu`: Thursday hours (e.g. 07:30-16:30)
- `hours_fri`: Friday hours (e.g. 07:30-16:30)
- `hours_sat`: Saturday hours (e.g. Closed)
- `hours_sun`: Sunday hours (e.g. Closed)
- `landmark`: Where to find the site (inside a building, store or hospital) (e.g. We are located in the Laurel Street Medical building....)
- `employerDrugTesting`: What the site says about employer drug testing, where it says anything (e.g. Not offered)
- `insideRetailStore`: Y when the site is inside a retail store (e.g. Y)
- `hostRetailer`: The store the site is inside (e.g. Walmart)
- `onlineScheduling`: Y when the site takes appointments online (e.g. Y)
- `scheduleUrl`: Quest's booking link for the site (e.g. https://appointment.questdiagnostics.com/find-location/as...)
- `scheduleReasonForVisit`: The visit type the booking link opens with (e.g. PHLEBOTOMY)
- `directionsUrl`: Google Maps directions link to the address (e.g. https://www.google.com/maps/dir/?api=1&destination=4120%2...)
- `website`: The site's page on questdiagnostics.com (e.g. https://www.questdiagnostics.com/locations/detail.html/AA...)
- `sourceUrl`: Where the row was read (e.g. https://www.questdiagnostics.com/locations/detail.html/AA...)
- `parentTicker`: The owner's stock ticker (e.g. NYSE: DGX)
- `naicsCode`: NAICS code (e.g. 621511)
- `naicsTitle`: NAICS title (e.g. Medical Laboratories)
- `sicCode`: SIC code (e.g. 8071)
- `sicTitle`: SIC title (e.g. Medical Laboratories)
- `updatedDate`: Date the row was built (e.g. 2026-10-10)
- `geo_precision`: How the coordinates were arrived at: the source's own map point, or a geocode of the address, ZIP centre or city centre (e.g. source)
- `county`: County name, U.S. rows (e.g. Anchorage Municipality)
- `county_fips`: Five-digit county FIPS code, U.S. rows (e.g. 02020)
- `county_note`: Set when the ZIP code spans more than one county: which county the row was placed in (e.g. ZIP 99701 spans 2 counties; assigned to the county...)
- `address_quality`: How complete the street address is: complete, no_house_number, po_box, missing_city_or_zip or missing (e.g. complete)

In the header but under 1% filled, so not in this release: openingDate, temporarySite.

## What we did to this data

Unified 37 city spellings, corrected 3 misspelled city names, added the county to 2,252 listings, flagged 52 incomplete addresses and measured 2,301 rows. Rebuilt October 10, 2026 from questdiagnostics.com.

## How complete the key fields are

phone 100%, website 100%, street address 100%, city 98%, state 98%, ZIP code 100%, latitude 100%, longitude 100%. 44 of 50 columns are filled on at least half the rows.

## Ask this list a question with a link

No connector and no account; each link answers with the matching count, preview rows and the price for just that part.

- [Only California, the state with the most](https://locationlists.com/find?dataset=quest-diagnostics-locations&state=CA)
- [Within 25 miles of New York, NY, the busiest area](https://locationlists.com/find?dataset=quest-diagnostics-locations&near=New+York+NY&radius=25)
- [Within a 30-minute drive of New York, NY](https://locationlists.com/find?dataset=quest-diagnostics-locations&near=New+York+NY&drive=30)
- [Only rows where onlineScheduling is Y](https://locationlists.com/find?dataset=quest-diagnostics-locations&where=onlineScheduling%3Aeq%3AY)
- [Every Healthcare Facilities list combined, within 25 miles of New York, NY](https://locationlists.com/find?category=healthcare-facilities&near=New+York+NY&radius=25)
- [Each one's nearest Kroger Family Pharmacy Locations, in California, with miles](https://locationlists.com/find?dataset=quest-diagnostics-locations&state=CA&relate=nearest&k=1&b.dataset=kroger-pharmacy-locations&b.state=CA)
- [The whole list: add a city, state, ZIP code or distance](https://locationlists.com/find?dataset=quest-diagnostics-locations)

## The same dataset, for machines

- Record as JSON: https://locationlists.com/data/quest-diagnostics-locations/dataset.json
- Free sample, up to 10 real rows: https://locationlists.com/data/quest-diagnostics-locations/sample.csv or https://locationlists.com/data/quest-diagnostics-locations/sample.json
- Buy link (opens Stripe Checkout): https://locationlists.com/data/quest-diagnostics-locations/buy

## Questions

### How does the count compare with Quest's own figure?

Quest's 10-K for 2025 says it has approximately 2,301 patient service centers. This list has 2,252 in the U.S. Quest's own sitemap also lists U.S. site codes whose pages show no site (48 on the first read, 10 October 2026), and those are left out.

### How current is it?

File built on October 10, 2026. It is not on an automatic refresh schedule, so check the build date above before you buy.

### How is this data cleaned?

Every rebuild runs the same steps and counts what each one changed. For the current file, rebuilt October 10, 2026 from questdiagnostics.com: Merged 0 duplicate listings that had the same business name, street address and ZIP code, keeping every filled-in detail from both (October 10, 2026). Unified 37 city names written more than one way within the same ZIP code (for example with and without a space or an abbreviation) to the US Census Bureau spelling (October 10, 2026). Corrected 3 misspelled city names to the US Census Bureau place name for their ZIP code (October 10, 2026). Added map coordinates to 0 listings that had none, from the US Census Bureau address geocoder or, where the street address could not be matched, the centre of the ZIP code (October 10, 2026). Set the county and its federal county code on 2,252 listings, matched to the US Census Bureau county list from the county the source records, the listing's map point, or its ZIP code area (October 10, 2026). Checked every map point against the state in its address and re-placed 0 points that fell outside that state (October 10, 2026). Flagged 52 addresses that are incomplete, a PO box, or missing a house number, in an address quality column (October 10, 2026). Checked that the row count, state count and field completeness published for this file were measured from the file itself (October 10, 2026).

### Isn't this free on questdiagnostics.com?

The underlying records are public on questdiagnostics.com. What you pay for is the work between that public release and this file: unified 37 city spellings, corrected 3 misspelled city names, added the county to 2,252 listings, flagged 52 incomplete addresses and measured 2,301 rows. The current file was rebuilt October 10, 2026 from questdiagnostics.com. Doing it yourself means downloading the full release, repeating each of those steps, and repeating them again every time the source updates.

### How complete is each field?

Measured on every row of the current file, the share of rows that carry each key field: phone 100%, website 100%, street address 100%, city 98%, state 98%, ZIP code 100%, latitude 100%, longitude 100%. 44 of 50 columns are filled on at least half the rows, and 1 is empty in every row.