Same-Day Service for Your Healthcare Needs

Affinity Urgent Care is your source for urgent care, occupational health, physicals, on-site radiology, and other quality medical services.

Schedule an Appointment
Get in touch with us to ask for more info about our services or to schedule an appointment
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Contact Us
Comprehensive Care Under One Roof

Urgent Care and Other Medical Services From Experienced Practitioners

When visiting an urgent care center becomes necessary, finding a reliable walk-in clinic that can quickly meet your medical needs is often easier said than done. Designed to bridge the gap between pricey emergency rooms and primary care physicians with week-long waits, Affinity Urgent Care’s clinics are one-stop shops for comprehensive diagnostics and immediate medical treatment. With three convenient locations in Alvin, Galveston, and La Marque, Texas, receiving same-day medical attention is as simple as finding the urgent care location nearest you.

Our Medical Services

Urgent Care

Our dedicated team of medical professionals provide immediate treatment of non-life-threatening illnesses and injuries, including cold and flu, sprains and strains, sinus infections, broken bones, ear infections, minor wounds, and other conditions.

COVID-19 Testing

Whether you’re experiencing symptoms or need to ensure a clean bill of health before returning to work or traveling, Affinity Urgent Care can help. Our COVID-19 testing services are safely performed inside our clinic in accordance with Centers for Disease Control and Prevention (CDC) guidelines.


We offer several types of physical examinations to meet the varying needs of our patients. Visit us for school physicals, sports physicals, certified Department of Transportation (DOT) physicals, and work-related physicals.

Occupational Medicine

Whether you need drug screening, immediate treatment for an on-the-job injury, or work-related physicals for your employees, we are here to help you meet Occupational Safety & Health Administration (OSHA) requirements and boost your employees’ overall health and safety.

STD Testing

Staying on top of your sexual health is incredibly important. We offer STD testing for genital herpes, gonorrhea, chlamydia, syphilis, HIV/AIDS, and trichomoniasis, all performed with the utmost confidentiality.

On-Site Services

Affinity Urgent Care offers on-site services for injuries, bronchitis, and other ailments requiring urgent care, sparing patients from having to visit multiple medical care facilities.
Your Health Is Our Priority

Why Choose Affinity Urgent Care?

At Affinity Urgent Care, we go above and beyond traditional walk-in clinics by offering a broad spectrum of healthcare services, including on-site radiology and lab testing, for adults and children of all ages. Our compassionate providers will help you get well and stay well. Visit one of our locations today!

Walk-Ins Welcome

We offer same-day service at each of our three locations, no appointment necessary.

Fast Treatments

Our friendly, personable staff will help you feel better so you can get on with your life.

Competitive Self-Pay Rates

We make medical care affordable with some of the best self-pay rates available.

Multiple Locations

With three conveniently located clinics, access to immediate care has never been easier.

Pay Your Bill
Accepted Insurances

Meet Our Team

Affinity Urgent Care is staffed by leading healthcare providers who are dedicated to helping our patients get well and stay well.

Josh Clark
Michael Nelson
Michelle Hruska
Catelyn Knowlton
Abigail Harang
We’re Ready to Help

Medical Care Made Convenient

With extended hours seven days a week and walk-in availability, Affinity Urgent Care makes it easy to get the care you need at a time that works best for you. You can swing by our walk-in clinic during your lunch break, on the weekend, or whenever life throws you a curveball—no appointment necessary! Plus, we take all major credit cards, accept most major insurances (including Medicare, Medicaid, Tricare, and VA benefits), and offer some of the most affordable self-pay rates in the area.

Contact us today if you have questions about our medical care services or payment options. Otherwise, stop by Affinity Urgent Care in La Marque, Alvin, or Galveston, TX, for quick and convenient medical care when you need it most.

100% Dedicated to Quality Healthcare

Read Reviews From Our Happy and Healthy Patients

Take a moment to review testimonials from patients who have experienced our compassionate care, then visit one of our walk-in clinics to receive the treatment or service you need.
"We have a special needs daughter who needed her foot looked at. Thankful that Affinity accepted her Medicaid first of all. Staff was nice, did not have a long wait, doctor was knowledgeable and understanding with our daughter, which means a lot. She was able to get x-rays done on her foot and received the results before we left. A great place to go on short notice."
"Facility was very clean. Very short wait. The doctor and x-ray tech were great!!"
"Fast and friendly. Was in and out in about an hour, and the PA and nurses were great. Much better experience than the ER."
"The Affinity care clinic in Galveston was wonderful. I walked in Memorial Day (without an appointment) and was seen by a very courteous and helpful staff. I highly recommend them."
"My experience at this urgent care facility was a pleasant one. I brought my daughter in due to an allergic reaction. The staff members there were awesome!"