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Please note that our San Antonio area clinic locations will be closing early at 7pm on December 9th for a team event.  Our Houston and Austin area clinics remain open until 9pm.  All locations will resume their regular operating hours on December 10th.  

Sienna Urgent Care

We’re open from 9 AM to 9 PM, 7 days a week, offering fast, affordable urgent care for patients of all ages in Sienna.

Urgent care walk-ins are always welcome! You can also easily schedule your visit from home.

8720 Hwy 6
Missouri City, Texas 77459
(281) 783-8162

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Next Level Urgent Care in Sienna provides convenient, affordable, and high-quality medical care to families throughout the Missouri City and south Houston area. Our clinic treats a wide range of minor illnesses and injuries, offering a faster, more accessible option than a traditional ER. Explore all the conditions we treat on our patient care page. The Sienna clinic is open seven days a week from 9 AM to 9 PM, with walk-ins and online appointments available.

Walk-In Urgent Care in Sienna, Missouri City

Our urgent care clinic in Sienna — located at 8720 Hwy 6 — offers same-day appointments for a wide range of urgent healthcare needs. Walk-ins are always welcome, and our care team works efficiently to ensure fast, compassionate service. As part of the Next Level Urgent Care network, we are dedicated to delivering high-quality, affordable medical care to the Sienna and Missouri City communities. Patients may call to schedule or use our Next Level App to reserve a time or get in line before arriving.

Affordable, High-Quality Urgent Care for Your Medical Needs

Next Level Urgent Care Sienna provides quick, dependable treatment for a broad range of urgent medical concerns. Our visit costs and copays are often significantly lower than emergency room fees—sometimes as little as one-tenth of the price. For individuals without insurance or with high-deductible plans, we offer clear, affordable self-pay pricing when payment is made at the time of service. Our clinic treats non-life-threatening injuries such as sprains, minor fractures, cuts, and abrasions, as well as illnesses including sinus infections, allergies, sore throats, and ear or eye infections. We also provide cost-effective sports, employment, and DOT physicals. Additional prescription savings are available through our pharmacy discount card.

Curious about what we treat?

  • Food allergy treatment
  • Seasonal allergy care
  • Blood pressure checks
  • High Blood Pressure and Hypertensive urgencies
  • Palpitations
  • Blood sugar checks
  • Insect bites and stings
  • Minor burns
  • Minor frostbite injuries
  • Plant dermatitis (poison ivy)
  • Ear pain
  • Eye redness
  • Eye pain
  • Minor corneal scratches or abrasions
  • Minor nosebleeds
  • Ocular foreign bodies
  • Sinusitis and sinus infections
  • Sore throats
  • Constipation
  • Gastroenteritis
  • Mild dehydration
  • Minor abdominal pain
  • Nausea
  • Vomiting and diarrhea
  • Rectal bleeding from hemorrhoids and fissures
  • Reflux
  • Swallowed foreign bodies (no respiratory distress)
  • Bartholin’s abscess
  • Mastitis (Breast infection)
  • Minor breast abscess treatment
  • Minor pelvic pain in the non-pregnant patient
  • Pelvic inflammatory disease
  • Pregnancy tests
  • Sexually transmitted disease
  • Vaginal bleeding in the non-pregnant patient
  • Vaginitis
  • Common viral infections
  • Infectious diarrhea
  • Sexually transmitted diseases
  • Tetanus shots
  • Back and neck strain
  • Bursitis and tendonitis
  • Finger or toe dislocations
  • Joint sprains and strains
  • Minor closed fractures
  • Sports injuries
  • Broken bones
  • Minor headaches and migraines
  • Motion sickness
  • Vertigo
  • Drug screening
  • Occupational Health Issues
  • Work related injuries
  • Ear and throat infections
  • Fevers
  • Foreign bodies of the ears and nose
  • Mild croup
  • Minor asthma and bronchiolitis (lower respiratory tract infection in children)
  • Rashes
  • Urinary tract infections
  • Vomiting and diarrhea
  • Bronchitis
  • Cold and flu symptoms
  • Cough evaluation
  • Mild asthma exacerbations
  • Mild community-acquired pneumonia
  • Whooping Cough (Pertussis)
  • Dysuria (painful urination)
  • Hematuria (blood in urine)
  • Mild kidney infections
  • Sexually transmitted diseases
  • Urinary tract infections
  • Hives
  • Minor rash evaluation
  • Parasite infestation
  • Shingles
  • Abrasions
  • Abscess treatment
  • Animal and insect bites
  • Finger and nail injuries
  • Laceration repair and post-repair care
  • Puncture wounds
  • Soft tissue foreign bodies
  • Wound packing

A Patient-Centered Urgent Care Experience in Sienna

Next Level Urgent Care Sienna is committed to providing a smooth, comfortable, and efficient patient experience. Our modern clinic is clean, welcoming, and designed to support quick check-ins and high-quality care. Our friendly staff works to minimize wait times while offering thorough, compassionate service. With the Next Level App, available for both iOS and Android, you can schedule appointments, check in, and manage your medical records from your mobile device.

Insurance and Convenient Payment Options

Next Level Urgent Care Sienna accepts most major insurance plans, and the full list is available here. For patients without insurance, we offer transparent self-pay pricing starting at $190. If you have questions about copays, coverage, or payment policies, please contact us here.

Serving Sienna, Missouri City, and the Fort Bend Community

In addition to our Sienna clinic, Next Level Urgent Care serves the broader Fort Bend County area with nearby locations in Sugar Land, Richmond | Long Meadow, and Rosenberg. With more than 45 clinics across Texas—including Houston, Austin, Beaumont, and San Antonio—we remain committed to expanding access to high-quality urgent care statewide.

Sienna Urgent Care FAQs

What insurance plans do you accept at the Sienna clinic?
We accept most major insurance carriers. View the full list here.

Can I walk in without an appointment?
Yes, Next Level Urgent Care Sienna welcomes walk-ins with minimal wait times. You can also schedule through our mobile app.

Do you treat children at this location?
Yes, we provide pediatric care for conditions including fever, infections, rashes, and minor injuries. You can view the full list of conditions we treat here.

How does your pricing compare to an ER?
Our urgent care services are often a fraction of ER costs. Insurance copays typically range from $25 to $100, while uninsured visits start at $190.

Where else can I find a Next Level clinic nearby?
We operate more than 45 clinics across Texas, including several throughout Fort Bend County and the Houston metro area. Find another location here.

Visit Our Sienna Urgent Care Clinic Today

Our Sienna clinic is located at 8720 Hwy 6, Missouri City, Texas 77459, and is open daily from 9 AM to 9 PM. Walk-ins are always welcome, and you may also schedule a visit using our mobile app. Our Highway 6 location is easy to access from Sienna Parkway and surrounding neighborhoods, and we offer convenient parking. We provide fast, high-quality healthcare for individuals and families in the Sienna and Missouri City area.
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Make Holiday Magic at Next Level!

The elves are opening Santa’s official letter station and you’re invited!

Bring your little ones to write their Letters to Santa, create their own Reindeer Food to take home, and enjoy a warm cup of hot cocoa while they craft!

*Available at select locations December 2-5.

Click Here to View Participating Locations and RSVP
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New Year's Eve Early Closure

All Next Level clinics will close early on December 31 at 7pm to allow our team to enjoy the New Year’s Eve festivities. 

We will reopen at our regular hours tomorrow at 9am.  

Wishing everyone a healthy and happy New Year! 

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Next Level Clinics Closing Early,
Wednesday, December 24th

In order to allow our staff time with their families, Next Level clinics will close at 7pm on Wednesday, December 24th.  Clinics will re-open at 9am on Friday, December 26th. 

Wishing everyone a safe and healthy holiday! 

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