Diagnostic Laboratory of Oklahoma - South Walker in Oklahoma City: Reference Laboratory Services for Physician Orders

Diagnostic Laboratory of Oklahoma operates a patient-draw facility on South Walker Avenue where individuals referred by their physicians come to have blood drawn, cultures collected, and other specimens prepared for testing. The lab does not perform in-house analysis; instead, it functions as a collection point for reference laboratory work—the kind of testing that requires send-out to a larger facility. This distinction matters: if your doctor orders routine bloodwork, you may be directed here to provide the specimen, while the actual results originate from the reference lab DLO contracts with.

What Diagnostic Laboratory of Oklahoma - South Walker Actually Is

Diagnostic Laboratory of Oklahoma is a patient-service center, not a full-service clinical lab. It exists to collect specimens safely and efficiently and to prepare them for transport to the main laboratory where analysis occurs. The South Walker location sits in central Oklahoma City and draws patients referred by local physicians, employers requiring physical exams, or individuals directed by their insurance plans. The facility handles venipuncture (blood draws), urine collection, saliva samples, and other standard collection tasks. Turnaround time for results depends on the specific test and the reference lab's processing speed, typically ranging from same-day to three business days, though DLO staff should verify timelines when you schedule or arrive.

Services and Collection Types

Diagnostic Laboratory of Oklahoma collects specimens for the full range of common medical tests: lipid panels, glucose screening, thyroid function, infectious disease serology, urinalysis, drug screening for employers, and culture work. You do not pay DLO directly for the draw itself; your insurance or employer covers the collection fee, which is usually bundled into the testing cost. If you are uninsured or paying out of pocket, confirmation of the reference lab's fee schedule is essential before the draw—costs vary widely based on test complexity. For example, a basic metabolic panel might run $50–100 out of pocket, while specialized cultures or genetic testing can exceed $300. Always confirm pricing when scheduling if you lack insurance.

No walk-in laboratory testing occurs at this location; you must have a physician's order or an employer-directed referral. Bring your insurance card and photo ID. If you do not know your insurance coverage for lab work, call ahead.

How Diagnostic Laboratory of Oklahoma Compares to Other OKC Options

Oklahoma City has several collection-point options: Quest Diagnostics maintains multiple draw sites across the metro, and LabCorp operates a regional network as well. The practical difference is minor. All three function as collection facilities; all use reference labs for analysis. Quest and LabCorp typically have more locations, so convenience may favor one of those if you need a site within a specific neighborhood. Diagnostic Laboratory of Oklahoma may have shorter wait times if you are already in central Oklahoma City, and local physicians may have established relationships with DLO that simplify referral routing. If your doctor's office names DLO, use it. If you have a choice, map the nearest location to your home or workplace.

Who This Suits and Who It Does Not

This location suits patients with physician orders for routine screening, occupational health exams, insurance physicals, or follow-up lab work for chronic disease management. It works well if you are already in central Oklahoma City and your doctor's office refers here. It does not suit you if you need results the same day (plan for at least 24 hours) or if you require in-house analysis and discussion with a lab director on site. It also does not suit patients who need phlebotomy training, donor services, or molecular testing not offered through the reference lab DLO contracts with.

What the First Visit Involves

Arrive with your physician's order, insurance card, and photo ID. Check in at the front desk. If you are fasting for certain tests (lipid panels and glucose screening often require it), confirm that you have followed your doctor's instructions. The phlebotomist will verify your identity, ask about your last meal if fasting is relevant, and draw blood or collect the specimen. The visit typically takes 10–15 minutes. You will receive a receipt and information about when and how to access your results. Most results post to your physician's patient portal within 24–72 hours; your doctor's office will contact you if results require action.

Hours, Parking, and Access

Diagnostic Laboratory of Oklahoma - South Walker is located on South Walker Avenue in central Oklahoma City. Typical hours run Monday through Friday, 7:00 AM to 5:00 PM, with some Saturday availability; verify current hours before your visit, as staffing can shift seasonally. Street or lot parking is usually available near the draw facility. The site is accessible by car; public transit connections depend on your starting point. If you are running late, call ahead to confirm that the phlebotomist can still accept you before closing.

Diagnostic Laboratory of Oklahoma - South Walker serves as a reliable point of entry for physician-ordered lab testing in central Oklahoma City, eliminating the need to navigate multiple Quest or LabCorp locations if your doctor prefers this facility.