Welcome to Our Practice

Marshall K. Warren, D.D.S., Your Dentist in New Braunfels, TX

At Great Oaks Dentistry, we value our patient relationships, making it our priority to deliver the gentle compassionate care that you deserve. We work hard to make you feel at ease by providing exceptional patient care in a relaxed, convenient atmosphere. We strive to develop lifelong relationships with our patients by combining the latest dental technology with a professional and compassionate staff. The result is a beautiful, healthy smile that lasts a lifetime. We also believe that patients should have sufficient information to make educated decisions about their oral health, treatment options and choice of dentist in New Braunfels. You’ll find all of this important information on our website, including directions to our New Braunfels office, service descriptions, patient forms, patient education resources and more.

Not only are we a leading and experienced dentist in New Braunfels, we are a customer service centered practice providing for all of your family’s dental needs.

Our services include:

Should you ever need additional information about our practice, we are always available to answer your questions. Let us care for your entire family! We look forward to meeting you.

Meet the Doctor

Learn Who We Are

  • Marshall K. Warren, D.D.S.

    Dr. Marshall Warren is proud to have served our New Braunfels neighbors since 1988.  His friendly nature combined with his many years of experience in dentistry is reflected in a dental practice whose focus is on building relationships and providing top-notch professional services. 


Contact Us

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Our Location

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Hours of Operation

Our Regular Schedule

Marshall Warren DDS


8:00 am-5:00 pm


8:00 am-5:00 pm


7:00 am-5:00 pm


7:00 am-5:00 pm


8:00 am-12:00 pm






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COVID-19 is in the news everywhere and we are closely monitoring the situation.

As a daily practice, Dr. Warren and our entire team at Great Oaks Dentistry use universal precautions as outlined by the CDC (Center for Disease Control and Prevention) and OSHA standards of infection control so that your safety in never compromised.

In an effort to further protect our patients and our team, we are implementing the following additional protocols:

1. In compliance with the recommendations for public health, any patient or team member with a cough or fever will be required to stay home and not be allowed in our facility.

2. Only the patient being seen will be allowed in our waiting room. Children may be accompanied by their parents or guardian only.

3. We have encouraged anyone on our staff feeling ill to stay home.

4. Each patient will be given a personal hand sanitizer. You will be directed to sanitize your hands upon entering our facility and upon leaving the clinical area.

At this time, our office will maintain our regular business hours. We will continue to monitor all releases from the CDC and make adjustments accordingly.

Dr. Marshall Warren