Walk-in Lab Locations in Houston
Most Labcorp patient service centers (PSCs) in Houston accept walk-ins, though same-day appointments are usually faster. Labcorp and Quest Diagnostics both operate walk-in patient service centers in Houston, and these lab locations are typically open on weekdays, with walk-in availability varying by site and time of day.
- Quest DiagnosticsAddress: 1431 Studemont St Ste 700, Houston, TX 77007Number: (281) 740-7989Hours: Mon-Fri 8am-5pm, Closed Sat-Sun
- Quest DiagnosticsAddress: 1200 Binz St Ste 115, Houston, TX 77004Number: (713) 527-8058Hours: Mon-Fri 7am-5pm, Closed Sat-Sun
- Quest DiagnosticsAddress: 6410 Fannin St Suite 220, Houston, TX 77030Number: (713) 791-9101Hours: Mon-Fri 8am-5pm, Closed Sat-Sun
- LabcorpAddress: 5420 Dashwood Dr, Houston, TX 77081Number: 713-666-6777Hours: Mon-Fri 7:30am-4:30pm, Closed Sat-Sun
Mobile Phlebotomy in Houston
Mobile phlebotomy, an in-home blood draw service, can be a good fit if you have limited mobility, feel uneasy about in-person blood draws, manage a tight schedule, or have young kids at home. In Houston, Getlabs offers this option in some areas, though coverage varies by ZIP code. These services can save travel time and may include an added convenience fee.
Appointments typically 6:00am–10:00pm, 7 days a week.
- Sample is drawn in your home, not a waiting room
- No travel time to a lab
- Offers more flexibility for busy schedules
- Helpful for limited mobility or anyone who prefers privacy
For another option, at-home blood test kits let you collect a finger-prick sample yourself and mail it to a CLIA-certified lab.
Free and Low-Cost Lab Testing in Houston
Community health centers, which are local clinics that provide primary care and preventive services, can also offer lab work for residents who want one place for routine appointments and blood tests. In Houston, many offer sliding-scale fees based on income. Some collect blood on-site, while others send you to a nearby lab, so call before you book to confirm.
- Avenue 360 Health and Wellness Midtown, 2920 Fannin St, Houston, TX 77002, (713) 426-0027
- CATHEDRAL CLINIC, 1212 Prairie St, Houston, TX 77002, (713) 220-9730
- EL CENTRO DE CORAZON-EASTWOOD, 412 Telephone Rd, Houston, TX 77023, (713) 926-6229
- Harmony House Respite Center, 602 Girard St, Houston, TX 77007, (713) 221-6219
- Legacy Wellness Bar, 120 Westheimer Rd STE F, Houston, TX 77006, (832) 548-5000
- McReynolds Middle School, 5910 Market St, Houston, TX 77020, (713) 671-3650
Common Blood Tests in Houston
These are common blood panels for routine and preventive care, with the tests most relevant to Houston’s local health trends listed first. Each row shows what the test measures and why a doctor might order it. Our Medical Review Board reviewed the panels, and your doctor decides what’s right for you.
| Test | What It Checks | Why a Doctor Orders It |
|---|---|---|
| Hemoglobin A1cResults in 1 to 2 daysNo fasting needed | Average blood sugar over the past 2 to 3 months. | Diabetes, prediabetes, or symptoms like extreme thirst, frequent urination, or sudden weight loss. Also routine screening at age 35. |
| Lipid PanelResults in 1 to 2 daysFasting may be needed | Cholesterol and triglyceride levels. | Heart disease in the family, high blood pressure, diabetes, or a past heart attack. Also a routine adult checkup. |
| Comprehensive Metabolic Panel (CMP)Results in 1 to 2 daysFasting may be needed | Blood sugar, kidney, and liver function. | Diabetes, kidney or liver issues, high blood pressure, before surgery, or when monitoring long-term medications. |
| Complete Blood Count (CBC)Results in 1 to 2 daysNo fasting needed | Red and white blood cell counts, platelets. | Anemia, an infection, unexplained bruising or bleeding, cancer screening, or pregnancy monitoring. |
| Vitamin DResults in 2 to 3 daysNo fasting needed | Vitamin D level in the blood. | Osteoporosis, bone pain, muscle weakness, or constant fatigue. Also for trouble absorbing nutrients, kidney problems, or limited sun exposure. |
Whether you need to fast depends on the lab and which tests are ordered. Confirm what you need when you book.
Financial Assistance for Blood Testing in Houston
Blood test costs vary depending on your insurance, the lab, and what’s being tested. If you’re worried about a bill, the labs’ own financial hardship programs, plus state and federal options, can lower or eliminate it.
You can also ask the lab about self-pay pricing or a payment plan before testing.
Texas
- Texas Medicaid. Covers preventive and diagnostic lab testing for eligible Texas residents who meet income and category requirements.
National
- Labcorp Patient Financial Hardship Program. Income-based discounts on Labcorp bills based on federal poverty guidelines. Call 800-845-6167 after receiving a bill to request an application.
- Quest Diagnostics Financial Assistance Program. Discounts up to 100% for patients at or below 200% of the federal poverty level. Partial discounts available up to 600% FPL with extenuating circumstances. Apply through patientbill.questdiagnostics.com or call 1-844-698-1022.
- Ryan White HIV/AIDS Program. Federally funded free HIV testing, treatment, and care for low-income people regardless of insurance status. Find local providers through the HRSA locator.