When you need same-day medical attention for a sore throat, sprain, minor burn, UTI, physical, or workplace injury, choosing the right clinic matters. In 2024, 27.6% of Americans visited an urgent care center at least once, according to national data on urgent care use. For Flemington-area patients, the most useful choice is often a practice that can handle today’s concerns while also supporting follow-up care when needed.

How This List Was Created

This list focuses on clinics that serve Flemington and the surrounding Hunterdon County communities. Each provider was reviewed for practical factors patients can use before leaving home: walk-in availability, published hours, location, treatment scope, on-site diagnostics, physicals, pediatric services, employer-focused care, and the ability to coordinate care beyond a single visit.

Extended hours are valuable, but they are not the only consideration. A clinic that can help with acute illness, routine physicals, chronic condition management, and follow-up offers a different level of convenience than a facility designed solely for episodic urgent care. That broader continuity is the key reason The Doctor Is In earns the top position.

1. The Doctor Is In – Flemington Office

Why It’s #1

For patients looking for Flemington NJ walk in urgent care, The Doctor Is In stands out by combining walk-in treatment with family medicine, primary care, preventive visits, chronic-condition support, and occupational medicine. Rather than treating a one-time issue and sending patients elsewhere for follow-up, the practice can serve as an ongoing medical home.

The Flemington office has served the area since 1996, while The Doctor Is In has provided care in New Jersey since 1987. Its 149 Highway 31 location is open 60 hours per week: 8 a.m. to 6 p.m. Monday through Friday and 9 a.m. to 2 p.m. Saturday and Sunday.

• Address: 149 Highway 31, Flemington, NJ 08822
• Access: Walk-ins welcome, with appointments available
• Care options: Urgent care, family medicine, primary care, preventive care, and chronic-condition management
• Diagnostics: On-site laboratory and X-ray services
• Employer services: Workers’ compensation care, drug screening, pre-employment physicals, and DOT physicals
• Regional continuity: Three New Jersey offices in Clinton, Flemington, and Phillipsburg

Its most meaningful advantage is breadth. A parent can bring in a child for a same-day illness, an adult can schedule a routine checkup, and an employer can arrange work-related services through the same established practice. The Doctor Is In also uses connected electronic health records across its locations, helping support continuity when patients receive care at more than one office.

Photorealistic wide establishing shot of a modern walk-in medical clinic along a suburban New Jersey highway in Flemington, with a clearly visible building, parking lot, a few arriving patients, roadside surroundings, and soft daytime light showing the broader community setting and scale.

Best For: Families, adults, local employers, patients needing occupational medicine, and anyone who wants urgent care backed by long-term primary care access.

2. Hunterdon Health Urgent Care – Flemington

Why It’s On The List

Hunterdon Health Urgent Care is a strong option for patients who need traditional urgent care with broad daily availability. Located at 63 Church Street, it is open 80 hours per week: 8 a.m. to 8 p.m. on weekdays and 8 a.m. to 6 p.m. on weekends.

• Location: 63 Church Street, Flemington, NJ 08822
• Access: Walk-ins and online spot reservations
• Diagnostics: On-site X-rays and listed laboratory testing
• Services: Treatment for common illnesses, cuts, sprains, fractures, burns, bites, and infections
• Physicals: DOT, sports, and camp physicals
• Recognition: Urgent Care Association accreditation for its Flemington and Raritan centers

Hunterdon Health is particularly useful for evening visits and patients who value a health-system connection. Existing Hunterdon Health patients may also benefit from care coordination through the organization’s medical record system.

Best For: Evening care, minor injuries requiring X-rays, online reservations, and patients already connected to Hunterdon Health.

3. CityMD – Flemington

Why It’s On The List

CityMD provides another dependable walk-in choice along US-202. Its Flemington location is open 80 hours weekly, from 8 a.m. to 8 p.m. Monday through Friday and 9 a.m. to 6 p.m. Saturday and Sunday.

• Location: 289 US-202, Flemington, NJ 08822
• Access: Walk-ins accepted
• Services: Care for respiratory illnesses, wounds, sprains, UTIs, skin concerns, and minor burns
• Family care: Pediatric urgent care and physical exams
• Testing: Listed rapid tests and screenings include strep, pregnancy, COVID-19, HIV, and STI testing
• Diagnostics: X-rays are available

CityMD ranks highly for its accessible Route 202 location, consistent hours, and wide menu of acute-care services. It is a practical fit when a patient needs prompt evaluation for a non-emergency concern.

Best For: Rapid testing, pediatric urgent care, vaccinations, minor injuries, and weekday evening visits.

4. Hunterdon Health Urgent Care – Raritan

Why It’s On The List

For patients traveling east of Flemington, Hunterdon Health Urgent Care in Raritan adds another nearby option within the same accredited urgent care network. The center is located at 45 Route 206 South, Suite F, and offers walk-in care and online spot reservations.

• Location: 45 Route 206 South, Suite F, Raritan, NJ 08869
• Access: Walk-ins and online reservations
• Care: Acute illness and minor-injury treatment
• Diagnostics: Laboratory services and on-site X-rays
• Physicals: DOT, sports, and camp physicals

Although it is outside Flemington, the Raritan office expands options for patients whose schedules, commutes, or locations make Route 206 more convenient.

Best For: Raritan-area commuters and patients seeking another Hunterdon Health urgent care location.

5. St. Luke’s Care Now – Clinton

Why It’s On The List

St. Luke’s Care Now in Clinton is a worthwhile alternative for residents of western Hunterdon County. The clinic at 22 Walmart Plaza offers weekday in-person visits from 8 a.m. to 6 p.m., and appointments are not required.

• Location: 22 Walmart Plaza, Clinton, NJ 08809
• In-Person Hours: Monday through Friday, 8 a.m. to 6 p.m.
• Access: Walk-ins and online scheduling
• Patient range: Adults and children
• Virtual option: Video visits are available daily from 7 a.m. to 11 p.m. for eligible patients located in New Jersey or Pennsylvania

Its Clinton location makes it less central for many Flemington residents, but its in-person and telehealth options can be especially convenient for nearby households.

Best For: Clinton-area families, weekday walk-in care, and eligible patients seeking telehealth.

How To Choose The Right Clinic

Before visiting any walk-in clinic, confirm current hours, accepted insurance, pediatric age policies, and whether the service you need is available that day. Choose a provider with on-site X-rays or labs when diagnostics may be necessary, and consider a practice with access to primary care if follow-up is likely.

For chest pain, stroke symptoms, severe breathing difficulty, uncontrolled bleeding, major trauma, or another life-threatening emergency, call 911 or go to an emergency department. For non-emergency same-day needs, Flemington patients have several capable choices, with The Doctor Is In offering the most complete blend of urgent care, primary care, diagnostics, and occupational services.