Clinical Location Services
US Clinical Labs Directory
Locate accredited Quest Diagnostics and Labcorp health facilities across the United States. Search or navigate to retrieve secure contact information.
//Houston
Labs in Houston, TX
Showing 30 of 30 verified laboratory facilities located in Houston.
Area:
Medical Center
Q
Quest Diagnostics - Houston Medical Center
Quest Diagnostics Center
Address6090 W 20th St, Suite 545, Houston, TX 77054
Phone+1 (713) 312-9450
Emailpatientbilling@questdiagnostics.com
Portalwww.questdiagnostics.com
Houston Heights
Q
Quest Diagnostics - Houston Houston Heights
Quest Diagnostics Center
Address8792 Aurora Ave, Suite 162, Houston, TX 77008
Phone+1 (713) 516-5381
Emailpatientbilling@questdiagnostics.com
Portalwww.questdiagnostics.com
Galleria
Q
Quest Diagnostics - Houston Galleria
Quest Diagnostics Center
Address1705 Grand Ave, Suite 524, Houston, TX 77056
Phone+1 (713) 896-9467
Emailpatientbilling@questdiagnostics.com
Portalwww.questdiagnostics.com
North Gessner
Q
Quest Diagnostics - Houston North Gessner
Quest Diagnostics Center
Address5726 15th St, Suite 327, Houston, TX 77040
Phone+1 (713) 843-4264
Emailpatientbilling@questdiagnostics.com
Portalwww.questdiagnostics.com
Beechnut
Q
Quest Diagnostics - Houston Beechnut
Quest Diagnostics Center
Address763 Avenue D, Suite 311, Houston, TX 77074
Phone+1 (713) 550-1770
Emailpatientbilling@questdiagnostics.com
Portalwww.questdiagnostics.com
Downtown
Q
Quest Diagnostics - Houston Downtown
Quest Diagnostics Center
Address9570 Caribbean Blvd, Suite 300, Houston, TX 77002
Phone+1 (713) 415-6325
Emailpatientbilling@questdiagnostics.com
Portalwww.questdiagnostics.com
Montrose
Q
Quest Diagnostics - Houston Montrose
Quest Diagnostics Center
Address8106 82nd St, Suite 150, Houston, TX 77006
Phone+1 (713) 984-3319
Emailpatientbilling@questdiagnostics.com
Portalwww.questdiagnostics.com
Sugar Land
Q
Quest Diagnostics - Houston Sugar Land
Quest Diagnostics Center
Address4149 Broadway, Suite 437, Houston, TX 77478
Phone+1 (713) 526-2701
Emailpatientbilling@questdiagnostics.com
Portalwww.questdiagnostics.com
Katy
Q
Quest Diagnostics - Houston Katy
Quest Diagnostics Center
Address2612 Walnut Hill Ln, Suite 515, Houston, TX 77494
Phone+1 (713) 600-2814
Emailpatientbilling@questdiagnostics.com
Portalwww.questdiagnostics.com
HbA1c Test Preparation & Guidance
Unlike standard fasting blood glucose tests, an **HbA1c screening does NOT require fasting**. You can eat and drink normally before arriving at Quest Diagnostics or Labcorp. Make sure to bring your doctor's official laboratory requisition form and your clinical ID cards.
Expert Testing Insights
Clinical Testing & A1C FAQs
Get expert, clinical answers to common questions about HbA1c screenings, outpatient lab networks, and diagnostic preparations.
Most primary outpatient centers in Houston are conveniently located near major medical corridors and public transit routes. Check our localized directory for exact addresses to plan your route.
Local patient service centers in Houston usually open early—typically between 6:30 AM and 7:30 AM—to accommodate patients who prefer morning draws before going to work.
While walk-ins are accepted at Quest and Labcorp sites in Houston, scheduled appointments receive priority. We highly recommend booking online beforehand to avoid long wait times.
Certified pediatric phlebotomists are available at select Houston draw locations. Ensure your child is well-hydrated, and choose centers marked with pediatric service flags.
Yes, several outpatient laboratory sites in Houston operate half-day schedules on Saturdays (typically 8:00 AM to 12:00 PM). Use our directory filter to find locations active on weekends.
All certified clinical draw centers in Houston comply fully with ADA accessibility standards, providing designated parking, step-free access, and automatic entryways.
Your specimen is safely labeled with unique barcodes and transported in temperature-controlled couriers from Houston to regional laboratory processing hubs for high-precision diagnostic analysis.
Outpatient draw centers in Houston do not print medical records on-site for privacy reasons. All secure reports must be accessed via your online portal or requested from your ordering doctor.
You can easily modify, cancel, or reschedule your appointment by logging into the Quest or Labcorp portal where you made the initial reservation.
Yes, most modern patient service centers in Houston feature digital iPad or touchscreen self-check-in kiosks at the lobby to expedite your arrival registration.