About Us page art for Pediatric Dentist Dr. John Howe in Missouri City, TX.
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About Us

Our Staff

Tabitha - RDH, BS

Billing Specialist

My name is Tabitha and I am the Registered Dental Hygienist at Sienna Pediatric Dentistry. I graduated from Jackson State University with a Bachelor of Science degree in Biology and then graduated from the University of TN Health Science Center with a Bachelor of Science in Dental Hygiene. I have been a practicing registered dental hygienist for 6 years and enjoy working with children. I love the ability to give my patients and their parents a pleasant experience while providing them with the best preventive dental care and knowledge.
In my spare time I enjoy traveling, shopping and spending time with my husband David and dog Zoey.


Samecia – Practice Manager

Billing Specialist

My name is Samecia and I am the practice manager at Sienna Pediatric Dentistry. I am new to the pediatric dental field and have enjoyed every minute of it. Dr. Howe and staff strive to create a great experience from sign in to checking out which makes for a great environment. I am currently in school majoring in Biology to eventually become a Dental Hygienist.
In my free time I am studying, spending time with my family or skimming through Pinterest for another craft to tackle.


Elizabeth - RDA

Billing Specialist

My name is Elizabeth, and I have 15 years of dental experience and 8 years working for Dr. Howe as a Dental Assistant. My experience at Sienna Pediatric Dentistry has given me the ability to grow professionally in every way. I truly enjoy the interaction with kids and parents and then receiving that big smile at the end as positive feedback always gives me pride in my work.
When I leave work I go home to my husband Melvin and our fun loving dog named Romeo. I thank you for trusting us with your child’s dental needs and look forward to serving you.


Doris - Insurance and Billing Specialist

Billing Specialist

My name is Doris and as your insurance and billing specialist, I am here to assist you with the understanding of your insurance benefits and dental claims. I enjoy working with you on all the financial aspects of your dental needs. I've been with Sienna Pediatric Dentistry since June of 2016 and I appreciate how positive the environment and how attentive doctor Howe is to all of his patients. We all work extremely well together to provide the best service for you.
I am also the proud mother of two lovely girls who brighten my every day. In my free time I enjoy doing makeup and going to the gym.


Norma - RDA

Billing Specialist

My name is Norma and I recently graduated from Everest Institution with my Dental Assistant certification. I enjoy assisting Dr. Howe with the children and love to see them leave the office with a smile.
Outside of work I love to spend time with my husband, my dog Robin and will take any opportunity to travel.