972-771-4000 | Rockwall Dentist | 1306 Summer Lee Dr., Rockwall, TX 75032.


The Fisher & Zitterich Dentistry Team is here to help and serve you in any way they can. Their goals are to help you feel welcome, make your visit enjoyable, and to exceed your expectations.
Team - Cindy Smith

Pam Kovar

Practice Administrator

Pam is a Registered Dental Assistant in the state of Texas and an Expanded Functions Dental Assistant in the state of Missouri. Pam joined our practice in 2019 shortly after she moved to Texas and is our Practice Administrator. She has nearly 2 decades of front and back office experience. Pam is 1 of 6 national speakers for Align Technology (the makers of Invisalign) and The Academy of Chairside Assisting. 

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In 2015 she had the honor to speak at the national meeting of the American Academy of Cosmetic Dentistry. When she is not in our office or teaching dental teams across the country, she is a busy mom of 4 kids. Married to her high school sweetheart, Bryan, together they have Kannon, Kinley, Kourtlyn, and Kamdyn. Pam and Bryan coach their kids’ sports teams and are very active in kids ministry at the church in Wylie, TX.

Kelsey McClaran

Theresa Pursel, RDH

Theresa has been a registered dental hygienist for 26 years, she loves her patients and provides the absolute best care for them as if they were her own family. She and her husband Randy have 3 daughters and 7 grandkids! Theresa has been a Girl Scout troop leader for 16 years starting with her own daughters and now she is a troop leader for her granddaughter. 

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When she takes a break from caring for her patients or isn’t leading a Girl Scout Troop, she loves to travel, ski, and spend time outdoors. She also has served in the youth group at her church for 18 years and has completed multiple mission trips with her church serving children in orphanages.

Hannah Derbonne, RDA

Hannah is a Registered Dental Assistant and assists Drs. Fisher and Zitterich with all aspects of your care, treating every patient as family.  She has a four-year old son named Payton, and loves basketball, reading, history, and spending time with her own family.


Chelsea Little, RDA

Chelsea has been an RDA for seven years! She and her husband Charlie, who is originally from the Forney area, recently moved back to Texas from her home state of Nebraska. We are excited to have Chelsea as part of our team! She enjoys hanging out with her family and friends, sporting activities, and being outside on the lake.

Cayley Fisher

Marketing & Referral Coordinator

Cayley is our patient treatment and referral coordinator and coordinates our community support outreach. She makes sure all the right information gets to the right people, in the most efficient way possible! She lives in Rockwall with her husband Landon and their daughter Charlotte Ruth who was born in the summer of 2017. In addition to being a wife and a mother, Cayley enjoys baking and spending time with her family.


Patti O’Shea

Insurance Coordinator

Patti is an important part of our front office team with 12 years of experience in dentistry! She and her husband Brian, have four children, Amanda (29), Aaron (27), Taylor (24), and Hunter (18), and two grandchildren, Colten (5) and Max (1). Patti spends almost all of her free time in the bleachers watching her youngest son play baseball and cheering him on!

Carla Fisher

Carla is not just Dr. Fisher’s wife of nearly 29 years, she is our office’s expert bookkeeper.  She knows her husband’s expertise lies in dentistry, not bill paying, so she sees to it that the behind-the-scenes responsibilities are taken care of.   With Michael they have an ever-growing family, Landon and his wife Cayley, and Monica.   Landon will be starting Baylor Law School soon after graduating from Texas A&M University, and Monica will be starting at Texas A&M this fall in preparation for dental school and ultimately joining the family practice.