Dental Horizons is the 2019 Times-Call Readers’ Choice


Welcome to Dental Horizons, Your Dentist in Longmont, CO.

Quality family & cosmetic dentistry at affordable prices

A top-rated dentist in Longmont based on Google reviews!

We accept most dental insurances, just give us a call to check on yours

No insurance? No problem! We offer an in-house dental plan to help with costs!

Doctor Kelson is a top-rated dentist that truly cares about his patients


At Dental Horizons, we understand and cater to the varying and individualized needs of patients, which explains why we see ourselves as a one-of-a-kind Longmont dental practice. We serve the community of Longmont, Boulder and the surrounding area, not only as health care providers but as a positive influence in our community. Longmont dentist,  Dr. Andrew Kelson sees the creation of value as an ongoing process. It starts with your First Visit and continues with you every time life gives you reason to smile. Through your input and our staff’s commitment to stay on top of the latest and best in new oral health practices, we continually add value so we can offer you the best possible path to oral health care. If you see many smiling faces, our office may be nearby! So whether you are looking for a Longmont dentist or a  dentist in Boulder, we would love to serve you. 

The care we provide is comprehensive, quality, predictable and long-lasting to achieve your optimal oral health.

We believe a healthy smile is often the vanguard of a healthy body and attitude. Your smile is the ever-present product of our efforts.

Dental Implants

We Are a Dental Clinic Serving Longmont, CO and the Surrounding Area

Same day apppointments available for emergencies

Doctor Kelson provides healthy smiles & happy visits

We are a local dental clinic supporting the Longmont, CO community

Get the smile you’ve always wanted

Meet The Doctor

Andrew Kelson, DDS

Dr. D. Andrew Kelson grew up in Portland, Oregon. He studied Business Information Systems at Brigham Young University and then moved to Ohio to earn his dental degree at The Ohio State University. In 2005, he graduated cum laude while working with two faculty members on dental research projects. He then finished an Advanced Education in General Dentistry at the University of Michigan where he gained significant experience while applying comprehensive care to complex cases. He enjoys the outdoors, reading, computers, and is a self-proclaimed nerd. Dr Kelson and his wife stay busy with their two children.

Andrew Kelson, DDS

Our Professional Memberships Include


“Everyone is competent and made me feel I was in good hands and gave me good news = no cavities! Thank you!”


I’ve been very happy with the service and people for myself and my kids for nearly ten years.

Neil R.

I really love how friendly and supportive all of the staff is at Dental Horizons!

Julie B.

Everyone at the office is always friendly and knowledgeable. From the moment you arrive you feel welcome and comfortable.

Rebecca W.

The care we provide is comprehensive, quality, predictable and long-lasting

Schedule your visit Now

Dental Horizons is located in Boulder County where they continue to set high dentistry standards for Longmont, CO

“Dental Horizons” is located in Longmont but you can also find us at Yelp, Birdeye, BBB, Health Grades, and Superpages. If you prefer a more personal experience you can call us at (303) 835-0985, or stop in our office at 600 S Airport Rd, Longmont between the hours of M-F 8am to 5pm. We are located near the St. Vrain State Park, Boulder Creek, and the Vance Brand Airport.

To get from the Vance Brand Airport (LMO) to our office, its quite possible the easiest drive ever. Leaving the Airport you want to head east on St Vrain Road towards Airport Road. You will turn right onto the 1st cross street onto Airport Road. Follow the road for about a mile then you’ll turn left on Staghorn Drive. Once you turn onto Staghorn Drive turn left into our parking lot.