About Northside Family Dentistry

Dr. Tandi Mulherin

Meet Dr. Tandi Mulherin

Dr. Tandi Mulherin is a dedicated and compassionate dentist with over six years of experience in delivering top-notch dental care. She earned her degree from the University of Missouri – Kansas City School of Dentistry and spent the first five years of her career practicing alongside her father.

Having recently relocated, Dr. Mulherin has quickly established a reputation for excellence in general dentistry. She is committed to continuous education, staying updated with the latest dental innovations and techniques to ensure her patients receive the most effective treatments possible. Dr. Mulherin is a firm believer in a patient-centered approach, prioritizing the concerns of each patient and crafting personalized treatment plans to promote optimal oral health. Known for her gentle touch and warm demeanor, she creates a welcoming and comfortable environment for patients of all ages.

Outside of the clinic, Dr. Mulherin enjoys spending quality time with her husband, Craig, and their three children: Finley, McCoy, and Jase.

Meet Dr. Edward Logan

Dr. Logan is a graduate of the University of Washington School of Dentistry, where he acquired his Doctorate of Dental Surgery. Prior to that, Dr. Logan graduated Phi Beta Kappa from the University of Missouri as an undergraduate.

It is Dr. Logan’s goal to listen and respond to your concerns, while providing state-of-the-art care, a gentle touch, and a compassionate spirit.

Dr. Logan

Meet Our Team

Dr. Logan Katie Logan

Katie Logan

Registered Dental Hygienist

Katie is a graduate of the University of Southern Indiana where she received her Bachelor’s of Science degree through the university’s accredited Dental Hygiene Program.

Prior to college, Katie grew up on a small farm in southern Indiana. Her Hoosier roots still run deep as she enjoys watching college basketball. Katie enjoys staying fit by running, doing Cross Fit, and cycling. She worked as a dental hygienist in Evansville, IN before making the move to St. Louis where she played an integral part in helping her husband, Dr. Logan, start his practice. Katie and Dr. Logan now live in St. Paul, MO with their three children. They enjoy being an active family by taking advantage of all the beautiful parks and trails St. Charles county has to offer. Katie and her family are also active members of Morning Star Church in Dardenne Prairie.  

Kirstie K.

Expanded Functions Dental Assistant

Kirstie has been in the dental field since 2011. She received her certificate in Dental Assisting from Missouri College. Shortly after, Kirstie went on to take continuing education courses to make her an Expanded Functions Dental Assistant. She loves the variety of procedures she assists in and developing relationships with her patients! Kirstie, her husband and 3 boys just built their forever home in Old Monroe. Outside of the office, she loves reading, being outside and spending time with her family and friends!

kirstie- Meet The Team
danielle - Meet The Team

Danielle A.

Front Desk Administrator

Danielle has been in the dental field since 2012. She started out working as a dental assistant and transitioned to front desk in 2018. Danielle has one daughter, Noella, and one dog and three cats. She enjoys spending time outside, doing activities with her daughter and spending time with her boyfriend, Tom.

Tiffany W.

Registered Dental Hygienist

Tiffany is a dental hygienist who has been in dentistry for 11 ½ years. She attended Missouri College, where she finished at the top of her class. She got married in 2012 and has three kids and lots of animals. Her hobbies and activities include boating on the Mississippi, gardening, and being a mom.

Tiffany Wolf - Meet The Team

About Our Practice

The search for a new dentist can bring up feelings of stress and dental anxiety. At Northside Family Dentistry, it is our mission to alleviate any concerns you may have about your upcoming appointment and to provide you with all of the information you need to help you relax and become a partner in your own dental care. From your first phone call to our office, we make every effort to help toward this goal. Our priority is to provide top quality, gentle dental care to well-informed patients in a convenient and comfortable setting.


Financial considerations should not be an obstacle in receiving the care you need and deserve. That is why we offer a wide range of payment options available to you. Feel free to discuss any financial concerns that you might have with our staff, and we will help to work out an arrangement best suited to your needs.

As a courtesy, our office will file your insurance for you and we accept most major dental insurances. If your insurance requires a copay, it will be collected at the time of service. For your convenience, Dr. Logan accepts Mastercard, Discover and Visa.

If you do not have dental insurance, Dr. Logan offers an in house discount dental plan.

Please take note of the following:

  • All payments are due AT TIME OF SERVICE to receive the discount. Any services received that are not paid for at the time of service will be billed at the usual, higher fee.
  • If you choose to extend your payment for treatment by paying through Care Credit, the restorative treatment discount is reduced to 10% due to merchant fees.
  • This offer cannot be combined with any other offers.
  • This is not a dental insurance plan.
  • Plan fees are valid only when paid at time of enrollment.


Call 636-431-8600 for more information.

In Office Discount Plan

We are excited to offer the following Discount Dental Membership Plan to patients who do not have dental insurance.

Membership Benefits:

  • Initial comprehensive exam, x-rays and routine cleaning.
  • Six month check up with exam and routine cleaning.
  • All dental treatment completed within 12 months of enrollment will be discounted by 15% if paid in full at time of service. This included elective cosmetic procedures like teeth whitening and veneers.


Annual Cost: Individual Plan: $345

Annual Cost for each additional family member: $249

Care Credit

Our dental office offers zero interest financing through Care Credit, a medical credit card company. Care Credit provides financing for a myriad of medical, dental, cosmetic, and veterinary procedures. If you don’t qualify for zero interest financing or you would like smaller monthly payments over a longer duration, Care Credit also offers extended payment plans with a fixed interest rate.

We will make any necessary financial arrangements with you before any treatment is completed. If you have any general financial questions prior to your first appointment please Contact Us.


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