Best Urgent Care clinics in Costa Mesa, CA.

Xpress Urgent Care is a private urgent care provider with two Costa Mesa/Tustin locations, offering walk-in urgent care, physicals (including pre-employment and immigration), vaccinations, and employer/workplace services (drug screening, work-related injuries). No appointment is needed; walk in during business hours or register online to speed visits. Founded in 2011, headquartered in Tustin, CA, with 5 US offices (Costa Mesa and Tustin among them). Contact: Costa Mesa location at costamesa@xurgentcare.com or phone numbers listed on their site. Key point for your query: they operate a Costa Mesa walk-in clinic open daily for same-day urgent care without prior appointments.

Exer Urgent Care is a private urgent care provider with 20+ Southern California locations, including Costa Mesa. Key points for Costa Mesa: - Services: ER-level care with on-site X-ray and labs; stabilizes and treats most daily emergencies quickly and cost-effectively. - Availability: Open 7 days a week from 8:00 am to 8:00 pm. - Offering: On-site labs, X-ray, medical weight loss, and options for insurance or self-pay. - Scale: Part of a larger network of clinics (headquartered in El Segundo, CA) with ~60+ clinics nationwide in the broader group; employs hundreds and emphasizes rapid, walk-in access.