Valued Patients and Providers: DLO's Enid Patient Service Center located at 620 S. Madison St., Suite 101, will be closed for the remainder of the day on Monday, January 12, 2026 and until 1 PM on Tuesday, January 13, 2026. For the nearest DLO Patient Service Center, please refer to our locations page on our website, or download the Patient Services Guide.
Please note: Walk-ins are always welcome, but patients with appointments will be given priority. Additionally, to receive lab work, you'll need a lab order from your healthcare provider, or an order purchased through QuestHealth.com.
Services
- Routine Lab Testing
- Biometrics
- Blueprint For Wellness
- COVID-19 Antibody Testing
- COVID-19 PCR Testing*
- DOT Electronic CCF
- Drug Screening
- Glucose Tolerance (please allow up to 3 hours before closing)
- Hair Collections
- Insurance Exams
- NIDA (DOT) Collections
- Non-Regulated Electronic CCF
- Pediatric Testing
- Phlebotomy Services
- QuantiFERON TB Gold Plus Tuberculosis Testing
- QuestHealth® Self-Ordered Testing
- Sap Non-DOT Collections
- T-SPOT.TB (specimen must be collected by noon)
* COVID-19 PCR testing at a DLO Patient Service Center is for asymptomatic patients or patients exhibiting mild, cold-like symptoms. Patients who are exhibiting active flu-like symptoms, including fever, may be asked to reschedule their appointment.

