From Darien, IL, Cass Avenue leads north to Urgent Care Center of Westmont. Walk in seven days a week for illness, minor injuries, insect stings, physicals, lab tests and X-ray at our main clinic.
Darien, IL residents have one of the simplest routes to our door: Cass Avenue. It crosses I-55 in Darien and runs north into Westmont, IL, where Urgent Care Center of Westmont sits at 29 N Cass Ave, Ste A. Darien's center is about 3.1 miles south of the clinic (straight-line).
We see Darien families for fevers, ear infections, poison ivy after a hike, tick and insect bites, and sprains. A board-certified physician-led team handles your care, and X-ray is on site at the Cass Ave clinic. Walk in or check in online.
Key facts
Darien, IL had 22,011 residents in the 2020 Census, and about 1 in 4 is 65 or older (U.S. Census Bureau estimate).
Waterfall Glen Forest Preserve is partly in Darien, IL, and the DuPage forest preserve district says tick risk is greatest in spring, when young black-legged ticks become active.
The Illinois Department of Public Health says a ring-like red rash shows up in about 70 to 80% of Lyme disease cases, 3 to 32 days after the bite.
Darien, IL has two I-55 interchanges, at Cass Avenue and at Lemont Road, according to the City of Darien.
Coming from Darien, IL?
Our main clinic is at 29 N Cass Ave, Ste A, Westmont, IL. Darien is about 3.1 miles south of the clinic (straight-line).
Cass Avenue: drive north from anywhere along Cass in Darien. Stay on Cass into downtown Westmont, IL. The main clinic is just north of the railroad tracks; keep going north to Ogden Avenue for our Jewel-Osco clinic.
From I-55, exit at Cass Avenue and head north.
From the east side of Darien, Route 83 (Kingery Highway) north to Ogden Avenue, then west to Cass, also works.
Darien is in DuPage County, in Downers Grove Township, with ZIP code 60561. Its main roads include Cass Avenue, 75th Street, Plainfield Road and Route 83.
Outdoor season and everyday care
The south edge of Darien borders Waterfall Glen Forest Preserve, and trail users there may run into stinging insects, ticks and poison ivy. Care we provide:
We are open Monday to Friday from 9 AM to 6 PM, and Saturday and Sunday from 9 AM to 5 PM. Coming up Cass from Darien, you reach the main clinic first. It is the one with X-ray. The Immediate Care Center of Westmont inside Jewel-Osco at 4 E Ogden Ave is a little farther north. Call (630) 324-6825 with questions.
What your visit costs
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Most major insurance is accepted, including BCBS PPO, BCBS Advocate Good Samaritan HMO, Meridian and Medicare. Please call to verify. You can review the insurance plans we accept. Self-pay visits use flat, upfront pricing, beginning at $125 for a general visit, as shown on the self-pay pricing page.
Emergency warning signs
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Go to the nearest emergency room or call 911 for chest pain, trouble breathing, stroke signs, a seizure, or bleeding that will not stop. After a sting, swelling of the lips, tongue or throat, or wheezing, can mean a severe allergic reaction. Call 911. See MedlinePlus: recognizing medical emergencies.
Darien, IL community facts (U.S. Census Bureau and City of Darien)
Fact
Darien, IL
Residents, 2020 Census
22,011
Age 65 and older (2020 to 2024 estimate)
About 24%
Under age 18 (2020 to 2024 estimate)
About 19%
No health insurance (2020 to 2024 estimate)
About 7.4%
I-55 interchanges in the city
Cass Avenue and Lemont Road
Large city parks named by the city
Darien Community Park and Westwood Park
Two numbers shape many Darien, IL visits. About one resident in four is 65 or older, so Medicare questions and fall injuries are common. And about 7.4% of residents have no health insurance. Medicare is on our list of accepted plans, and our self-pay urgent care prices are posted up front, with a general visit from $125. Read do you need insurance to go to immediate care? if you are unsure.
Lyme disease basics for Waterfall Glen hikers from Darien, IL
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The City of Darien notes that Waterfall Glen Forest Preserve is partly inside city limits, with trails for walking, biking and picnics. The Forest Preserve District of DuPage County explains that young black-legged ticks, called nymphs, become active in spring, which is when people face the greatest risk. They are tiny and easy to miss.
Before the trail: the district suggests insect repellent with 20 to 30% DEET on clothing, light-colored clothes and pants tucked into socks
After the trail: check yourself thoroughly every time you have been in tick habitat, including kids and dogs
If you find one: grasp it close to the skin with fine tweezers and pull straight out, slowly and firmly. Do not burn it or cover it in oil
If part stays in the skin or the bite looks infected: see our tick bite care
The Illinois Department of Public Health says Lyme disease spreads through the bite of an infected deer tick, also called the black-legged tick. A ring-like red rash appears in about 70 to 80% of cases, starting 3 to 32 days after the bite. It may be joined by fever, chills, headache, tiredness or joint aches. IDPH advises seeing a doctor for a rash or an unexplained fever after a tick bite. Our clinicians can examine the rash, review your risk and recommend treatment, which may include prescription medicine when appropriate. Compare other causes on our rash page.
Weekend games at Darien, IL parks
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Darien Community Park and Westwood Park are two of the larger parks the city names, and Saturday games bring their share of rolled ankles and scraped knees. Here is how to sort a sports injury.
Test the weightIf your child cannot take four steps, or the bone itself is tender, have it checked. Moving the toes does not rule out a break. See can you wiggle your toes if your ankle is broken?
Pick the right clinicPossible breaks go to 29 N Cass Ave, the only one of our two clinics with X-ray. Coming north on Cass from Darien, IL, it is the first one you reach.
Check the tetanus dateDeep scrapes and cuts on dirt or turf raise the tetanus question. Our tetanus shot guide explains when a booster is due.
The Illinois Department of Public Health describes a ring-like red rash that spreads over days or weeks and often clears in the center, like a bull's-eye. It shows up in about 70 to 80% of cases, 3 to 32 days after the bite. See a clinician if you notice it, and mention the bite.
How should I remove a tick after a hike near Darien, IL?
Use fine-tipped tweezers. Grasp the tick as close to the skin as you can and pull straight out with slow, steady pressure. Do not twist it, burn it or cover it in oil. Wash the area and your hands, then watch the spot for a few weeks.
Do you see older adults from Darien, IL who have Medicare?
Yes. Medicare is on our list of accepted plans, and we see adults of all ages for illness and minor injuries. Medicare Advantage plans vary, so call (630) 324-6825 to confirm your plan. Bring your card and a list of your medicines.
“Appreciated the quick service, friendliness, and knowledge of the medical staff. We have now been here multiple times because of great experiences.”
carrie f. · January 2026 · Google★★★★★
“Seen immediately late on a Saturday. Great staff. In and out in less than 30 minutes.”
Susan D. · July 2025 · Google★★★★★
“I called the night before and made an appointment. I was seen right away. The workers at the reception desk were efficient. The medical team was excellent! They spent quite a lot of time explaining my medical condition and how to take my meds. I will definitely use them again when I visit my daughter in Hinsdale.”
