Walk-in Lab Locations in San Francisco
Most Labcorp patient service centers (PSCs), or patient service centers, in San Francisco accept walk-ins, though same-day appointments are usually faster. Labcorp and Quest Diagnostics both operate walk-in patient service centers in San Francisco, and these lab locations often offer weekday availability with shorter wait times when you book ahead.
- Quest DiagnosticsAddress: 2198 15th St, San Francisco, CA 94114Number: (415) 431-8723Hours: Mon-Fri 12:30pm-4pm, Closed Sat-Sun
- LabcorpAddress: 490 Post St, San Francisco, CA 94102Number: 415-837-0782Hours: Mon-Fri 7am-3pm, Closed Sat-Sun
- Quest DiagnosticsAddress: 450 Sutter St Ste 2540, San Francisco, CA 94108Number: (415) 398-2410Hours: Mon-Fri 1pm-4pm, Closed Sat-Sun
- Quest DiagnosticsAddress: 2201 Post St, San Francisco, CA 94115Number: (415) 931-6492Hours: Mon-Fri 1pm-4:30pm, Closed Sat-Sun
Mobile Phlebotomy in San Francisco
For added convenience, a mobile phlebotomist can come to your home in San Francisco. Getlabs offers mobile phlebotomy, an in-home blood draw service, across much of the area, though coverage varies by ZIP code and appointments include an additional convenience charge.
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
- Flexible scheduling for busy days
- Helpful for limited mobility or anyone who prefers privacy
For added convenience, 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 San Francisco
In San Francisco, community health centers, which are local clinics that provide primary and preventive care, serve patients with and without insurance. Many accept Medicaid, Medicare, and self-pay on a sliding scale. Some draw blood on-site, while others work with a nearby lab, so call to confirm lab availability, hours, and costs in San Francisco County.
- API Wellness at San Francisco LGBT Center, 1800 Market St, San Francisco, CA 94102, 415-292-3400 x750
- Haight Ashbury Integrated Care Center, 1563 Mission St, San Francisco, CA 94103, (415) 746-1940
- HealthRIGHT 360 Integrated Care Center, 1563 Mission St, San Francisco, CA 94103, (415) 746-1940
- Lyon-Martin Community Health Services, 1735 Mission St, San Francisco, CA 94103, (415) 565-7667
- NORTH EAST MEDICAL SERVICES – POLK, 650 Polk St, San Francisco, CA 94102, (888) 500-1886
- SMHC Pharmacy, 255 7th St, San Francisco, CA 94103, (628) 230-6166
Common Blood Tests in San Francisco
These are common blood panels for routine and preventive care, with the tests most relevant to San Francisco’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 |
|---|---|---|
| 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. |
| 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. |
| 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 San Francisco
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.
California
- Medi-Cal. California’s Medicaid program covers preventive and diagnostic lab testing for eligible residents.
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.