Urgent Care in Costa Mesa, CA
37 verified clinics · Walk-ins welcome · No appointment needed
37 clinics found
Urgent Care | Kaiser Permanente Harbor-MacArthur Medical Office
3401 S Harbor Blvd 1st Floor, Santa Ana, CA 92704
AFC Urgent Care Rancho Santa Margarita
30465 Avenida de las Flores A, Rancho Santa Margarita, CA 92688
MemorialCare Urgent Care - Huntington Beach (Adams)
9122 Adams Ave, Huntington Beach, CA 92646
AltaMed Urgent Care – Santa Ana Bristol
2720 S Bristol St suite 110, Santa Ana, CA 92704
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Urgent Care in Costa Mesa, CA — Overview
Costa Mesa is a major city in California. This directory covers verified urgent care clinics across the Costa Mesa metropolitan area.
Healthcare in Costa Mesa includes national urgent care chains (MinuteClinic, AFC, Concentra), plus regional health system urgent care centers. Walk-in care is widely available 7 days a week.
This directory covers urgent care locations across Costa Mesa proper and surrounding suburbs. Whether you need same-day care or after-hours walk-in treatment, you'll find the nearest verified option.
Common questions about urgent care in Costa Mesa
Quick answers before you visit.
What insurance do urgent care clinics in Costa Mesa, CA accept?
Most urgent care clinics in Costa Mesa accept major commercial plans (Blue Cross Blue Shield of California, Aetna, Cigna, UnitedHealthcare, Humana), Medicare, California Medicaid, and TRICARE. Specific in-network coverage varies by clinic — check the individual clinic page for the most accurate list, or call the clinic directly to confirm before your visit.
Which urgent care networks are strongest in Costa Mesa?
The largest walk-in care networks in the Costa Mesa area include the major regional health systems. See the 'Local networks' section on this page for a description of each — their typical services, affiliated hospitals, and FAQs about insurance acceptance.
Is urgent care cheaper than the ER in Costa Mesa?
Yes — significantly. A typical urgent care visit in Costa Mesa costs $25–$75 with insurance (copay), or $100–$200 cash-pay for a basic visit. An ER visit averages $1,500–$2,500 even for non-emergency issues. Urgent care is appropriate for fevers, flu, UTIs, pink eye, minor injuries, strep, and most same-day concerns — reserve the ER for chest pain, stroke symptoms, severe bleeding, or trouble breathing.
Do Costa Mesa urgent care clinics take walk-ins, or do I need an appointment?
All Costa Mesa urgent care clinics accept walk-ins — that's their core business. Many large chains (MinuteClinic, AFC Urgent Care, Concentra, and Solv-partnered clinics) also let you reserve a time slot online to skip the waiting room. Wait times are typically posted live on each clinic's website.
Are there pediatric urgent care options in Costa Mesa?
Most adult urgent cares in Costa Mesa see children age 1 and older. For infants under 12 months or complex pediatric presentations, look for dedicated pediatric urgent care — PM Pediatric Care, children's-hospital-affiliated walk-in centers, or pediatric-specific clinics. Check individual clinic pages for pediatric availability and age ranges.
How late are urgent care clinics open in Costa Mesa?
Most Costa Mesa urgent care clinics are open 8 AM to 8 PM, 7 days a week. Some major-chain locations (MinuteClinic, AFC Urgent Care, Concentra) offer extended or weekend hours, and a handful operate 24/7. Check the 'hours' line on each individual clinic page for current operating times — clinic schedules change, so we recommend confirming before travel.