Education:

  • Master of Science in Dentistry (1997), St Louis University Department of Graduate Endodontics, St Louis, MO
  • Certificate/Advanced Education in General Dentistry (1993), Wilford Hall USAF Medical Center, San Antonio, TX
  • Certificate/Advanced General Dentistry (1984), University of Minnesota School of Dentistry, Minneapolis, MN
  • Doctor of Dental Surgery (1983), University of Minnesota School of Dentistry, Minneapolis, MN
  • Passed the American Board of Endodontics written examination 1997
  • Passed the Federal Services Board for General Dentistry written examination 1994
  • Passed the Academy of General Dentistry Fellowship Exam 1993

Special Professional Interests

I have found dentistry to be an extremely rewarding career, which I have enjoyed in a variety of settings.  From the great foundation I received at the University of Minnesota, to my wonderful years as a general dentist in the United States Navy, to narrowing my focus to endodontic specialty care since 1995, I have found dentistry to be a joy and a privilege.  I love practicing as an endodontist; diagnosing and treating complex cases to help patients save their natural teeth, and trying to make the experience as pleasant and comfortable as possible.

Professional Activities

American Association of Endodontists Life Member

Verified Patient Reviews

4.9 out of 5 (37 Reviews) (13 Comments)

Overall patient ratings are based on the average score given by The Dental Specialists patients who voluntarily complete a satisfaction survey from Press Ganey, a nationally recognized firm dedicated to improving patient experience. Click to learn more about our patient ratings.

5 out of 5
July 25, 2025
Dr, Johnson was Wonderful
5 out of 5
July 25, 2025
All of the staff were so nice and professional
5 out of 5
July 11, 2025
Very articulate and methodical in explaining each step.
5 out of 5
June 6, 2025
Overall the entire procedure experience was better and less painful than I could have anticipated and I really appreciate that the dentist was patient, explained things to me, and made me feel comfortable. I felt like the dentist sincerely cares about my health and wellness.
5 out of 5
May 21, 2025
Dr.Mary Johnson is the best dentist I have ever gone to.
5 out of 5
March 27, 2025
J was very well informed of every step of my dental proceedure and give opportunity to ask questions.
5 out of 5
March 25, 2025
I really appreciated Dr. Johnson's honesty, and conservative decisions.
5 out of 5
March 25, 2025
I really appreciated the knowledge of the front desk staff.
5 out of 5
February 9, 2025
Doctor Johnson was very thorough in explaining the pros and cons of going ahead with the root canal. She also communicated very well with my dentist.
5 out of 5
January 12, 2025
Dr.Johnson was wonderful. She explained everything in detail and was so kind and professional. Thankyou so much!!
5 out of 5
December 10, 2024
The team that worked on me were excellent! I would gladly recommend them to anyone.
5 out of 5
December 10, 2024
Wonderful
5 out of 5
December 10, 2024
Wonderful