Dr. Nathan Williamson
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Every patient deserves a carefree smile and a happy, healthy mouth. We facilitate this by providing all our patients with accessible, top-notch dental care. Our mission is to empower all of our patients to take their dental wellness into their own hands by educating them about proper at-home care and offering accessible, judgment-free dentistry.

Growing up in Belleville, IL, Dr. Williamson admired his family dentist and knew that one day he would work in the medical field. He graduated from Illinois Wesleyan University with his Bachelor of Arts in mathematics. He then went on to attend dental school at Southern Illinois School of Dental Medicine, where he received his Doctorate of Dental Medicine.
Services
At Williamson Dental, our team of experienced Festus dentists can treat patients of all ages with preventive dentistry. Schedule your next bi-annual cleaning and oral exam with Williamson Dental today! Save Time & Money- Regular dental visits are usually covered by insurance. Even if you don't have insurance coverage, preventive care is affordable and helps you avoid more costly visits for issues like gum disease and cavities.
Damaged or missing teeth don't have to affect your self-esteem, your bite, or your day-to-day life. Our experienced team uses the latest technology and techniques to provide you with a beautiful, natural smile. If you're located in Festus, MO or Columbia, IL, schedule your consultation today!

Functionality & Aesthetics- We focus on both functionality and aesthetics at our practice, ensuring your smile looks great and feels natural when biting, chewing and smiling.Customized Treatment- No two mouths are the same, which is why we offer customized restorative dentistry plans for all of our patients.
The team at Williamson Dental is experienced in cosmetic dentistry. If you're located in Festus or Columbia and are self-conscious about your smile due to issues like gaps, stains, or crooked and misshapen teeth, we're here to help. Customized Treatment Plans -Your smile is unique, so we'll work with you to develop a customized smile treatment plan that will provide you with a beautiful smile.
Need a family dentist in Festus or Columbia? At Williamson Dental, we treat children and adults of all ages and provide the dental care you need to for lifelong wellness. All Ages Welcome- Whether you're new to Festus or are just looking for a new family dentist, our friendly doctors are here to help.
Dental implants are life changing for patients with missing teeth. These long-lasting tooth replacements give you your smile and your confidence back. With implants, you can restore your smile permanently while protecting the health and strength of your jaw bone. Replace Missing Teeth With Dental Implants- Dental implants are the best way to replace one or more missing teeth.
Reviews (9)
Allison Easton
Allison Easton
Jan 21, 2022
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They were willing and eager to take on my 2 crazy boys. They made the visit bearable. I highly recommend Dr Williamson and all staff for pediatric dentistry. I’m very very pleased with our experience. Thank you all for the exceptional car of all 4 of my monsters!
Brittany Thomas
Brittany Thomas
Sep 25, 2021
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Dr. Williamson is the type of dentist everyone hopes to have. His staff is incredibly kind, patient and caring and its clear they truly want the best dental care for each of their patients. From the hygienist to the dental assistants right to the top with Dr himself, you know you're in good hands. I had severe dental phobia and needed quite a bit of work. I now come in and leave with a genuine smile because I know this office will not hurt me, overcharge me, or make me feel like I don't matter. 100 out of ten for Dr and his office of stellar tooth professionals.
Britnee Gould
Britnee Gould
Apr 30, 2021
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I had a rootcanal scheduled on a Monday morning and the night before I broke a different tooth. I went in for my appointment the next day and he did both rootcanals on me that day to make sure I wasn't in pain. I will never go to another dentist. These people are amazing and the staff is wonderful! Best experience.
Joey Litteral
Joey Litteral
Dec 17, 2020
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Sitting here in the emergency room with my husband. Took him to this so called dentist , gave them $100 for them to tell me exactly what I already told them over the phone
They prescribed him antibiotics, duh, its blatantly obvious he has an infection
But told him, a diabetic who hasn't been able to eat for 2 days to continue rotating ibuprofen and Tylenol
Well blood pressure sky high and sugar plummeting
This place needs shut down
Its obvious that ducking ibuprofen and Tylenol aren't working
But we get it. He has bad teeth so there for must be a dope phene
Didn't even so much as offer a
Ashley Laiben
Ashley Laiben
Jan 26, 2020
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I absolutely despise going to the dentist, but this team made it as easy on me as they could. This was my first visit with them, and I will not be going anywhere else! Receptionist, hygienist and doc were all very kind and informative!
Susie Que
Susie Que
Nov 14, 2019
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Dr. Williamson is a kind, patient and skilled dentist! I always feel appreciated and welcome at his office! He was able to help me with a painful toothache that I had suffered from for years! Each of my previous dentists had told me that the pain was “normal” or that it would “eventually “ go away! It didn’t! After switching to Dr. Williamson, I told him what was happening. He took a look and did some quick shaping changes on the tooth! I’ve had NO MORE PAIN for years!!! He’s amazing!
(P.S. - His staff is wonderful, too! )
Chris Pool
Chris Pool
Dec 15, 2018
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Dr. Williamson and staff have always been amazing! I had an emergency on a Friday and even though Dr. W was out of the office Rita did an unbelievable job at getting me in to see Dr. Harmon who did a fantastic job too. Highly Recommend *****
Liz Phi
Liz Phi
Sep 29, 2018
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I hadn't been to the dentist in a long time because I was so afraid of being judged. I finally went in to Williamson Dental and I am so glad I did! They are amazing and you don't have to wait months to get an appointment with them! I highly recommend Williamson Dental to anybody!
Perry D.
Perry D.
Aug 20, 2018
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Gave them 3 stars because I had an emergency and they were able to squeeze me in same day. Receptionist was kind, friendly and willing to explain things. Doc seemed a little rushed. Explained my issue which he didn’t seem interested in hearing about. He took a quick glance at my teeth and took 2-tooth xrays. The outcome of the X-ray and a quick glance was a 1900$ root canal and crown on a tooth that wasn’t bothering me at all and that’s with insurance. Went to a secondary dentist explained my situation and was informed I have TMJ issue which I believe isn’t tooth related. I have an appointment