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O'Fallon Modern Dentistry

★★★★4.2(433 reviews)

Ranked #5 of 5 dentists in O'Fallon

✓ Accepting new patients

WHAT WE KNOW ABOUT THIS PRACTICE

LOCATION3009 State Hwy K, O'Fallon, MO 63368, O'Fallon, MO
CONTACT PATHSphone, website, directions
REVIEW SIGNAL4.2 stars from 433 reviews
CATEGORY SIGNALSGeneral Dentistry
BUSINESS HOURS5 days with published hours

HOW IT COMPARES IN O'FALLON

RANKDENTISTRATINGREVIEWS
#5O'Fallon Modern Dentistry YOU'RE HERE4.2433

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Review Highlights

B

"DO NOT GO HERE!! DO NOT GO HERE!! After moving, my daughter & I went here for one of our yearly cleanings. The moment w…"

in 6 reviews
CY

"Went for my first visit to this office. Told them i needed a simple cleaning and general check-up for an up coming surge…"

in 6 reviews

About the Business

O'
O'Fallon Modern Dentistry
Business Owner

Location & Hours

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3009 State Hwy K, O'Fallon, MO 63368
O'Fallon, MO 63368
Get directions
SundayClosed
Monday8:00 AM – 6:00 PM
Tuesday7:00 AM – 4:00 PM
Wednesday7:00 AM – 6:00 PM
Thursday8:00 AM – 5:00 PM
Friday8:00 AM – 1:00 PM
SaturdayClosed

Amenities and More

Accepting new patients
Appointments available
Verified dental practice
Phone consultations

Recommended Reviews

Your trust is our priority, so reviews shown here reflect genuine patient experiences. Businesses cannot pay to alter or remove their reviews.

4.2
★★★★
433 reviews
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Showing top 6 of 433 reviews

B
Brooke
☆☆☆☆June 3, 2026
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DO NOT GO HERE!! DO NOT GO HERE!! After moving, my daughter & I went here for one of our yearly cleanings. The moment we walked in the door they were demanding money. They charged me $100+ saying that I needed to meet a deductible. When I asked for more reason because of it just being a cleaning the girl at the counter cut me off immediately saying it was the deductible. They got me in the chair for my cleaning & then had another lady come in & tell me that I had a gun disease & they wouldn’t touch my mouth unless I paid $4,000 for a cleaning. I was in tears because how!? I got another opinion at a family owned dentist & was told the opposite. I didn’t have to pay nothing towards a deductible because it was a cleaning!!!!!!! & that I needed no such treatment like Modern had stated. Do not go here. Do not go here. They are a scam & will take your money for no reason. If you trust this office you’re either naive or too rich to care.

CY
Clayton Y
☆☆☆☆March 5, 2026
···

Went for my first visit to this office. Told them i needed a simple cleaning and general check-up for an up coming surgery. They ended up telling me I would not be cleared for surgery because I had multiple tooth infections that required root canals, extractions, and substantial gingivitis. They come back with an estimate of over $7000 dollars out of pocket, after my Anthem insurance coverage. Mean while I had zero tooth pain or issues before this visit, I only went to be certain I would be ok for surgery. Declined all their recommend work at the time, and they didnt even do a general cleaning. All the work they did was test my saliva and measure my gums. Come time for the hospital to do all there final checks they did all the xrays and such...Humm fully cleared with no issues found. And now im getting a bill from this office for 2 separate "new patient visits" 1. Fully covered by insurance for $324. And 2. Part coverage of $94.60, and I owe $50.40.... I will never be back.

SM
Sarah Merritt
★★★★★February 19, 2026
···

Everyone here is friendly and professional! I accidentally showed up 30 minutes before my appointment time and I was seen right away!! I had my first fillings done here and the doctor and staff made me feel SO comfortable. Very clean and great atmosphere. My husband and I love this office and recommend to anyone needing a new dentist!

CR
Cindy Roberts
★★★★★February 19, 2026
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My family has been coming here for years! We all love Dr Gulley! The staff is so welcoming and their enthusiasm for their jobs shows how much they care. Kristin is so friendly and attentive. She makes my daughter feel comfortable at every appointment!

SN
Samantha Nelli
★★★★★February 10, 2026
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Dr Conover is the BEST! And not just her but the whole team from the front desk, to the dental hygienist, and even the oral surgeon they brought in when I needed my tooth removed! All of the team gave A+ service! Would recommend no matter what you need and they definitely work with you whether you have no, cruddy, or the best insurance! I never feel pressured to do anything I don’t want to do. Even the office staff who work with the insurance and finance companies bent over backwards to help me see how low I can get my cost and how I can best split up things so I can pay over time and not just go without because my issuance didn’t cover something I needed! They are patient, kind, and make sure you feel your best! I switch myself and my two kids over to be seen here. If you need a dentist or are looking to switch Ofallon Modern Dentistry with Dr Conover is the place to check out! They accept great insurance and even savings plans most offices didn’t take! So happy I found them! Thank you for being an incredible team that makes patients feel not just seen but also heard!

KD
Kiara D
★★★★★November 12, 2025
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Allison & Dr. Conover were amazing! The environment & atmosphere was very clean and welcoming. Both ladies were very professional and informative. Dr. Conover listened, explained and was so friendly. As a first time visitor I felt heard, welcomed and will definitely return. Thanks Allison & Dr. Conover your customer service, attentiveness to details & just passion definitely radiates through.

Frequently Asked Questions

How do I contact O'Fallon Modern Dentistry?+

Call O'Fallon Modern Dentistry at (636) 379-7552. For more information, visit https://www.ofallonmoderndentistry.com/?sc_cid=GBP%3AO%3AGP%3A809%3AOrganic_Search%3AGeneral%3Ana&_vsrefdom=organic_gbp&y_source=1_MTE5NDE1Mi03MTUtbG9jYXRpb24ud2Vic2l0ZQ%3D%3D.

Where is O'Fallon Modern Dentistry located?+

O'Fallon Modern Dentistry is located at 3009 State Hwy K, O'Fallon, MO 63368, USA, O'Fallon, MO 63368.

Does O'Fallon Modern Dentistry have a website?+

Yes. The website for O'Fallon Modern Dentistry is https://www.ofallonmoderndentistry.com/?sc_cid=GBP%3AO%3AGP%3A809%3AOrganic_Search%3AGeneral%3Ana&_vsrefdom=organic_gbp&y_source=1_MTE5NDE1Mi03MTUtbG9jYXRpb24ud2Vic2l0ZQ%3D%3D.

What rating does O'Fallon Modern Dentistry have?+

O'Fallon Modern Dentistry has a 4.2-star rating from 433 reviews.

What are O'Fallon Modern Dentistry's business hours?+

Business hours: Monday 8:00 AM – 6:00 PM; Tuesday 7:00 AM – 4:00 PM; Wednesday 7:00 AM – 6:00 PM; Thursday 8:00 AM – 5:00 PM; Friday 8:00 AM – 1:00 PM.

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