Proudly serving dentistry to O'Fallon

 

$59 New Patient Special

Your journey to a healthier, happier you begins here.

 
 
 
 
 

Halie Gulley

 

Dentist DDS

 

I love traveling and visiting new places. I also love being outside. I enjoy hiking, kayaking, and exploring the great outdoors with my husband Michael and our golden retriever Cooper. I love animals and hope to start fostering abandoned dogs in my free time.

https://1.smilegeneration.com/uploadedimages/staff/29837.png Halie  Gulley

Office Address

 

3009 Hwy K , O'Fallon, MO 63368

 

We are located at Highway K and Route N, in front of Schnucks; next to Firestone

Google map of O'Fallon Modern Dentistry
Google map of O'Fallon Modern Dentistry

What Our Patients Say About Us

5.0

I’ve been going to this dentist for a while now, and honestly, my teeth have never been in better shape. Every visit is super smooth, everyone’s friendly, and they actually take the time to explain what’s going on without making it feel complicated. It’s the first time I’ve felt like my long‑term dental health is really being looked after, not just whatever’s happening that day. If you’re looking for a place that’s consistent, easy to work with, and actually cares, this is the one.

5.0

After starting the week with a very negative and painful experience at a different dentist, O"Fallon Modern Dentisty came to my rescue and helped restore my confidence. I can't thank Dr. Salbo enough for her expertise, professionalism and attention to detail. She helped put my mind at ease and my root canal went quickly with no pain. On top of that, Dr. Gulley really came through for me after learning I had been misled on the original timetable of how many visits it would take to complete the crown process from my previous dentist. I can say she was truly there to make things right for me and I was able to get my new crown installed immediately after my root canal, which saved me additional visits and time. I also have to give a huge thanks to Sam, Chloe and Annie who who were extremely kind and helpful by answering any questions I had and also for making sure I was comfortable throughout my entire procedure.

5.0

Overall, I never know what to expect when I go to the dentist office. I have severe anxiety when it comes to all things dental— so much so that at the age of 30, I had to have a full dental extraction, and that was a scary experience. From November 2024 to present day (Feb 2026), there has been one staff member who consistently makes me feel at ease, not ignorant, she’s empathetic, she’s a real human too and she understands how to navigate real humans and their real emotions. All of this to say, if it weren’t for Chloe popping in, checking on me, going the extra mile, offering her knowledge and experience along the way, I truly believe I would NOT enjoy my time in the office, nor leave without crippling anxiety, if it weren’t for Miss Chloe. So big, big shout outs to Chloe— thank you, friend. I appreciate you so much more than words could ever express!!

Let's get you scheduled for your dental appointment!

 
Schedule Header
 

For a dental emergency, please call us at 636-379-7552

 

*Regular value of at least $290. In absence of gum (periodontal) disease. New patients only. Cannot be combined with any other offers. Limit 1 per patient. May be covered by insurance, subject to insurance restrictions; cannot be applied to insurance co-payments or deductible. Not valid for Tricare or Medicare Advantage members. AZ, CO, ID, and NM Delta Dental members: valid toward cosmetic dentistry only. Not valid for appointments with pediatric dentist. ADDITIONAL SERVICES MAY BE REQUIRED AT AN ADDITIONAL FEE. Valid only when appointment is booked prior to 06/17/2026. No cash or credit value.THE PATIENT AND ANY OTHER PERSON RESPONSIBLE FOR PAYMENT HAS AS RIGHT TO REFUSE TO PAY, CANCEL PAYMENT, OR BE REIMBURSED FOR PAYMENT FOR ANY OTHER SERVICE, EXAMINATION OR TREATMENT THAT IS PERFORMED AS A RESULT OF AND WITHIN 72 HOURS OF REPSONDING TO THE ADVERTISEMENT FOR THE FEE, DISCOUNTED FEE OR REDUCED FEE SERVICE, EXAMINATION OR TREATMENT. May be covered by insurance. Subject to plan restrictions Services rendered by a General Practitioner. Minh Chi Nguyen DMD 106195