QUEST DIAGNOSTICS CLINICAL LABORATORIES INC
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003156134, based in Houston, TX. It is classified under Clinical Medical Laboratory.
Getting there
Here is what surrounds this office in Houston, based on OpenStreetMap data collected Sep 8, 2026. Parking is available about 0.38 mi away at GreenStreet. The nearest transit stop is 629 ft away, served by Pierce St @ San Jacinto St. A pharmacy sits 0.45 mi from the entrance (Randalls Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.25 mi away.
Getting here and what is nearby
Transit St Joseph Pkwy @ San Jacinto St 363 ft ~2 min
Restaurant Pappas BBQ 358 ft ~2 min
1217 Pierce Street, Houston 77002
Mo-Th 10:30-22:00; Fr-Sa 10:30-22:30; Su 11:00-21:00
Transit Pierce St @ Caroline St 426 ft ~2 min
Transit Pierce St @ San Jacinto St 629 ft ~3 min
Gas station Sunoco 978 ft ~4 min
Coffee Mademoiselle Louise 0.20 mi ~5 min
1725 Main Street, Houston
Coffee Slowdrip TX 0.23 mi ~5 min
Coffee Tout Suite 0.25 mi ~6 min
Restaurant China Garden Restaurant 0.25 mi ~6 min
1602 Leeland Street, Houston 77003
Tu-We 15:00-21:00; Th 11:00-21:00; Fr-Sa 15:00-21:00; Su-Mo off
Hotel Holiday Inn Houston Downtown 0.26 mi ~6 min
1616 Main Street, Houston 77002
Restaurant Your Pie 0.26 mi ~6 min
1625 Main Street, Houston
Mo-Th 11:00-21:00; Fr 11:00-23:00; Sa,Su unknown
Parking Toyota Tundra Garage 0.27 mi ~6 min
1515 Jackson Street, Houston 77003
Pharmacy Mid Town Specialty RX Pharmacy 0.31 mi ~7 min
1701 Webster Street, 77003
Parking Pins Parking - 1820 Milam St 0.35 mi ~7 min
Convenience King Fuels 0.37 mi ~8 min
2100 Hamilton Street
Parking GreenStreet 0.38 mi ~8 min
Gas station Shell 0.39 mi ~8 min
Hotel Holiday Inn Express 0.39 mi ~8 min
Grocery Randalls 0.42 mi ~9 min
Hotel Hilton Americas-Houston 0.45 mi ~10 min
Pharmacy Randalls Pharmacy 0.45 mi ~9 min
Convenience Icebox 0.49 mi ~10 min
Gas station Chevron 0.49 mi ~10 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Clinical Medical Laboratory covers
(1) A clinical laboratory is a facility for the biological, microbiological, serological, chemical, immunohematological, hematological, biophysical, cytological, pathological, or other examination of materials derived from the human body for the purpose of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, human beings. These examinations also include procedures to determine, measure, or otherwise describe the presence or absence of various substances or organisms in the body. Facilities only collecting or preparing specimens (or both) or only serving as a mailing service and not performing testing are not considered clinical laboratories. (2) Any facility that examines materials from the human body for purposes of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, or the assessment of, the health of human beings. Typical divisions of a clinical laboratory include hematology, cytology, bacteriology, histology, biochemistry, medical toxicology, and serology. NUCC Health Care Provider Taxonomy, code 291U00000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003156134 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Feb 27, 2013 |
| Last updated | Aug 3, 2021 |
| Status | Active |
| Practice address |
1315 ST JOSEPH PKWY Houston, TX 77002 (713) 654-8128 |
| Mailing address |
1201 S COLLEGEVILLE RD Collegeville, PA 19426 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 1 | 5 | 6 | 1 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 5 | 3 | 1 | 6 |
Sum = 46 · next multiple of 10 = 50 · check digit = 4 · actual last digit = 4
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.