Are you looking to safeguard your spectacular smile? John A. Simpson, DDS and Nathan A Catmull, DDS, is the answer. We offer everything from cosmetic and family dentistry to implants, Lumineers, Sapphire Whitening, ClearCorrect and more. So when you're ready to get the expert dental care you deserve from friendly dental professionals that care, give us a call!

Our Goals list

  • 100%
    Patient Satisfaction
  • 100%
    Patient Comfort

Meet the Team users

  • Dr. John Simpson DDS

  • Dr. Nathan Catmull DDS

  • Ainslie

    read more…AinslieAinslie was born and raised in Paul, Idaho. She attended Minico High School and ISU where she attended the dental hygiene program. She graduated in 2012 and has worked for us since. She is married to her husband, Adrian and they have a beautiful little girl, Holly and 2 fun puppies. Ainslie enjoys spending time with family, being outdoors, hunting, skiing, golfing and being on the family farm.×

  • Alice

    read more…AliceAlice is our office manager and is a certified Dental Assistant. She grew up in Rupert and met her husband of 40 years while attending ISU. She has 4 great children, 1 wonderful daughter-in-law and a super son-in-law. She especially enjoys time with her 9 grandchildren. We have such a fun group of employees that makes coming to work so enjoyable and our patients are fabulous.

  • Bea

    read more…BeaBea - Coming soon!×

  • Dawn

    read more…DawnDawn has been cleaning smiles for over 30 years. She loves her work, meeting new people and caring for long time friends. She is married to her husband, Bruce, of 35 years. They have raised two great boys, have 3 1/2 grandchildren, 2 grand­dogs, and 4 grand­cats. Dawn has commuted from Pocatello to work in our office for over 15 years now.×

  • Suzanne

    read more…SuzanneMeet Suzanne! "I was born and raised in California and received my dental assisting training in Modesto, CA. I have been a registered dental assistant for 20 years. I moved to Idaho to be by my family. One daughter was born in 1992, another one in 1992, and my son in 1999. They are the highlight of my life. Dr. John Simpson and Dr. Nathan Catmull are the best you will find in Southern Idaho. They truly strive to give the best comprehensive care possible while providing a comfortable environment for their patients. I am honored to be part of their team."×

  • Therisa

    read more…TherisaTherisa is a Certified Dental Assistant and has worked in our practice for 19 years. She is possibly the most experienced assistant we have had; she is a real asset to our practice. Therisa has 3 boys and her oldest son, who is in the military got married this summer. She loves to travel and spend time with family and friends.×

Services Provided layers

+ Cosmetic Dentistry

At Dr. Simpson & Dr.Catmull, we are committed to helping each patient attain excellent oral health and to look their very best. We provide cosmetic dentistry to help you achieve your best self. Take pride in your smile with the help of our many services, including dental implants, cosmetic bonding, Lumineers, porcelain veneers, teeth whitening and more!

+ Implants

A dental implant is actually a root replacement, and unlike the root of a tooth, it is actually fused to the bone of the jaw. A crown is attached to the implant and becomes a stand­alone tooth, functioning and appearing just like the natural tooth you have lost. By contrast, a fixed bridge is a tooth restoration that is fixed in place by attaching to the natural adjacent teeth, which provide support on either side.

+ LumiBrite and KöR® Whitening

KöR® Whitening Deep BleachingTM is the most effective whitening system in the world today. KöR Whitening is the only system recognized to significantly whiten even difficult tetracycline stained teeth within a short time.

+ Fast Braces/Clear Correct

Clear Correct provides a way to get the straight teeth you want without the hassle of wearing unattractive metal braces. Clear Correct uses a series of custom fitted, clear plastic aligner trays to gradually shift your teeth into the desired position. After wearing one aligner for 2-4 weeks, you will receive a new aligner, which will be slightly tighter in order to make your teeth move. This method is very similar to Invisalign, the main difference being the price-Clear Correct is more affordable but just as effective! We know you’ll be happy with your results after using Clear Correct!

+ Preventative Dentistry

The American Dental Association recommends that you see your dentist every six months. Doing so will give you the best chance of preventing serious dental diseases. At your regularly scheduled examination, your teeth will be cleaned by a professional who will remove all of the built-up plaque and calculus that your own toothbrush can’t reach. Other protective measures that we provide include:

  • Fluoride treatments
  • Sealants
  • Oral cancer screenings
  • Treatments for teeth grinding and headache
If you haven’t been seeing a dentist regularly, don’t wait another day to make an appointment! Your health and your smile are worth it!

Location & Hours map

502 8th Street
Rupert ID 83350
(208) 436-4747
8:30 am - 5:00 pm
8:30 am - 5:00 pm
8:30 am - 5:00 pm
8:00 am - 4:30 pm
9:00 am - 12:00 pm

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