About Us

General, Cosmetic, and Restorative Dentistry

 

Superior Dental Care

Welcome to Post Oak Dental, offices of J. Chris Gowan, D.D.S., P.A. and Byron J. Hall, Sr., D.D.S., Inc. We are here to provide each and every patient with the best possible dental care in the most supportive and nurturing manner. Whether you are new to our practice or a long-time patient, our professional staff will make you feel welcome and comfortable as we strive to provide the highest standard of personalized dental care in the most gentle and efficient way possible. 

Dental Care for The Whole Family
  • Adult Care
  • Child Care

Our Team

DR. J. CHRIS GOWAN, D.D.S., P.A.

A native Houstonian, Dr. Chris Gowan pursued his undergraduate studies at the University of Texas at Austin and Houston Baptist University. He earned his Doctor of Dental Surgery degree from the University of Texas Dental Branch in Houston in 1994. He is a member of the Academy of General Dentistry, American Academy of Cosmetic Dentistry, Texas Dental Association, American Dental Association and the Greater Houston Dental Society. Dr. Gowan believes that “perfection is our goal; excellence is our standard.”

DR. BYRON J. HALL, SR., D.D.S.

Dr. Hall is a third generation Texan. He is a graduate of the University of Texas Dental Branch in Houston, graduating in 1962. Dr. Hall is a member of the Greater Houston Dental Society, the Texas Dental Association and American Dental Association. He has fellowships in the Academy of General Dentistry, American College of Dentistry and International College of Dentistry.

VICKI WILLIS, RDH

Vicki, a native of Shreveport, Louisiana, graduated from Northeast Louisiana University in 1976 with a BA in French and a minor in Math and then received her dental hygiene degree in 1977.

After practicing for a year in Louisiana, she married and moved to Houston. Vicki has been a hygienist with our practice since 1978 and has cleaned the teeth of four generations of some families! She values the relationships and friendships she has developed with her patients over the years.

Vicki enjoys playing Pokeno and Bunco, going to the movies, dining out with friends and attending sporting events. She is passionate about the Texans, the Astros, and the Longhorns. However, the greatest joy comes from spending time with her family and eight grandchildren.

DILLY NARVAEZ, RDH

Dilly Narvaez is a native Houstonian and completed her undergraduate studies at the University of Houston. She received her dental hygiene degree from the University of Texas Dental Branch in 1996. She has practiced at our office since first receiving her dental hygiene degree.

Dilly and her husband, Jaime, have three children and working part-time allows her to volunteer at their schools and enjoy their many sports events and activities, including traveling all over with their son’s AAU basketball league.

VICKI CAILLET, RDH

Vicki was born and raised in Houston and has been in the dental field since 1998. She received her Associate’s Degree in dental hygiene from Wharton County Junior College.

Vicki is passionate about her work and believes that good dental hygiene is important not only for her patients’ smiles but for their overall health, as well.  She likes to keep abreast of the latest dental technologies and research and pass them on to her patients. Vicki’s friendly attitude and light touch are what keep patients looking forward to their dental appointments.

Vicki enjoys spending time with her husband Darren, her dog, Hank, her friends and her family. In her spare time, she loves sports, traveling, cooking and shopping.

HUONG NGUYEN PORTMANN, RDH

Originally from Vietnam, Huong immigrated with her family to the United States in 1977.

With more than 23 years of experience in the dental field, Huong started as a dental assistant and went on to graduate as a hygienist from the University of Texas Dental Branch in 1996. Huong is passionate about her work and finds personal satisfaction and joy by treating, educating and building lasting relationships with her patients. Her goal is to have patients that truly enjoy coming to the dentist! She is excited to be part of the Post Oak Dental Team, where comprehensive dentistry is practiced at the highest level.

Huong has two children – Connor and Camden – and she enjoys spending time with her large, close-knit family and friends, as well as cooking, shopping, photography, and camping.

ADELINA CASTRO, RDA

Adelina Castro is a Registered Dental Assistant, with a career in the dental industry spanning 25 years, and has spent the last seven years with Dr. Gowan and Dr. Hall. She enjoys her work with patients and wants them to have a positive and comfortable experience while they are in our office.

Adelina enjoys reading, being outdoors and spending time with her family in her spare time.

LAURA HANG, RDA

Laura Hang, a registered dental assistant, emigrated from Cambodia in the early ’80s and has been in the dental industry for more than 10 years. Laura enjoys assisting the doctors and caring for her patients at Post Oak Dental.

She has a beautiful teenage daughter and in her spare time, Laura enjoys spending time with her family, jogging, and shopping.

LESLIE DEVILLIER
PRACTICE MANAGER

Another native Houstonian, Leslie brings more than 32 years of marketing, public relations and non-profit experience to our practice. No stranger to a dental office (her father was a Houston dentist), as our Practice Manager, Leslie meets with our vendors, handles marketing, purchasing and various special projects to keep our office moving forward.

She is an active community volunteer with the Houston BARC Foundation, the Salvation Army, and the Girl Scouts and enjoys reading, cooking, and camping. Leslie and her husband are getting used to being empty-nesters with the kids off in college!

MARGARITA RODRIGUEZ
FRONT OFFICE ASSOCIATE

Margarita Rodriguez is knowledgeable in all aspects of the front office. She enjoys meeting new patients and walking them through their insurance questions and taking care of their accounts.

Margarita has three lovely daughters – Carmen, Christina and Mary Isabel – and five active grandchildren. You will often find her in the garden or busy with her church’s many activities, including the Legion of Mary.

Our Office

General Cleaning

Implants & Restoration