Jefferson Chamber of Commerce The Urgent Care-Westbank/Laplace Share: Hospitals / Medical Services The Urgent Care-Westbank/Laplace Visit Website 148 Wall Blvd. Gretna, LA 70056 (504) 393-2273 Hours: We are open weekdays from 9AM-8PM and weekends from 9AM-5PM. We are even open on holidays! About About We are a walk-in urgent care medical clinic, located in Gretna. We provide patients with services such as in-house X-rays, labs, testing, ultrasounds. We treat most non-emergent medical conditions.