Urgent care centers and walk-in clinics in Mercer Island, WA

Mercer Island, WA has 5 urgent care centers listed on UCL.

2 of the 5 urgent care centers listed in Mercer Island list Saturday hours and 2 list Sunday hours. Hours are not listed for 1, so call it to check. Holiday hours are often shorter; confirm with the clinic before a holiday visit.

1 center lists weekday hours past 7 PM. They are named in the "Open late, weekends and 24 hours" lists on this page. Hours change, so call before a late visit.

Swedish Primary Care - Mercer Island is the listed urgent care center closest to the center of Mercer Island, about 0.9 mi away. The list above shows verified clinics first, then the rest by distance from the city center.

On our listings, the networks named most often by Mercer Island urgent care centers are Cigna (4), Aetna (2) and Premera BC (2), with the number of clinics in brackets. 4 of the 5 list at least one network. Call the clinic to confirm it takes your plan.

Most urgent care centers accept walk-in patients without an appointment, though some offer optional online check-in. Call the clinic or check its listing to confirm its policy.

Out-of-pocket urgent care costs in WA typically range from $100–$250 for an uninsured visit, depending on services; visits that include X-rays, lab tests, or minor procedures (stitches, splints) usually run $200–$400. With insurance, the visit cost is usually a copay of $25–$75. These are typical ranges, not quotes; verify with each facility before visiting.

Go to urgent care for non-life-threatening illness or injury: fevers, sprains, infections, minor cuts, mild asthma, UTIs, flu, rashes. Go to the ER for chest pain, severe abdominal pain, difficulty breathing, sudden weakness or numbness, severe head injury, heavy bleeding, severe burns, or any potentially life-threatening symptom. When in doubt with a serious symptom, call 911.

Most urgent care centers treat patients of all ages, including children, and some are pediatric-only; call ahead to check a clinic's minimum age. For infants under 6 months with a high fever, contact a pediatrician or the ER directly.

Many urgent care centers offer on-site X-rays, basic lab tests (strep, flu, COVID, mono, UTI), IV fluids, sutures, and splints, but not all do. More advanced imaging (MRI, CT) typically requires a hospital. Call the clinic to confirm before you go.

Yes. Urgent care providers can prescribe antibiotics for bacterial infections (strep throat, UTIs, sinus and ear infections, skin infections) when clinically appropriate. They follow CDC stewardship guidelines, so they will not prescribe antibiotics for viral illness like the common cold or most cases of bronchitis.

Some urgent care centers offer telehealth visits for non-emergency issues like cold and flu symptoms, prescription refills, rashes, or follow-up care. In-person visits are still required for X-rays, lab tests, and physical exams. Ask the clinic whether it offers telehealth.