South Texas Sinus Institute

South Texas Sinus Institute We solve sinus problems, allergies and other ear, nose and throat conditions in South Texas. 👃👂👄
Call us @956-661-8200

4865 N Mccoll Rd
Mcallen,TX 78504
Phone: (956) 661-8200, toll free (855) 99-SINUS
Fax: (956) 661-8205

At South Texas Sinus Institute we have a team of experts ENT staff, including physicians and clinicians who are dedicated to providing you with the highest quality of care. You’ll find that all of our physicians are board-certified in Otolaryngology. Our clinicians have extensive training in ENT

and meet all of the highest education standards. If you are looking for a sinus doctor in South Texas to provide you with relief from sinusitis, snoring, or even sleep apnea, please do not hesitate to give South Texas Sinus Institute a call. Our team of experienced ENT surgeons and physicians are ready to help.

08/25/2026

🎉🌟Celebrating Eloy, our Billing & Medical Records Supervisor! Cheers to five years of dedication, growth, and keeping things moving behind the scenes. From tackling the details to helping keep our billing department on track, your hard work does not go unnoticed.
Thank you for rolling with the punches, stepping up, and being a TEAM player. Here’s to 5 years strong and many more! 💪🎉

08/21/2026

HAPPY BIRTHDAY ELOY! 🧁🎂🎉⛳️ enjoy your trip around the sun 🌞 wish big!

STSI WOULD LIKE TO GIVE A LITTLE BACK-TO-SCHOOL LOVE FOR A FEW RGV FAMILIES!🎒✨A new school year means new routines, new ...
08/14/2026

STSI WOULD LIKE TO GIVE A LITTLE BACK-TO-SCHOOL LOVE FOR A FEW RGV FAMILIES!🎒✨

A new school year means new routines, new memories, and plenty of back-to-school expenses! 📚✏️ And this year, we want to help make the season a little brighter for one special family in our Rio Grande Valley community. 🫶🏼

We’re giving RGV families the chance to win our Back-to-School Family Giveaway! 🎉

🏡 WHO CAN ENTER?
Families must currently reside in the Rio Grande Valley to be eligible.

📅 ENTER AUGUST 14 – SEPTEMBER 9, 2026

Entering is easy! 💫
Simply complete our official Family Giveaway Form below:

🔗 https://tinyurl.com/STSI-FAM-Giveaway

Whether it’s your family, a friend, a neighbor, or someone you know who could use a little extra sunshine this school year — share this post and help us reach families throughout the RGV! 💕

Here’s to backpacks packed, pencils sharpened, and a beautiful new school year ahead! 🎒🍎✨

*No purchase necessary. Eligibility requirements apply. Winner will be contacted using the information submitted on the official entry form.*

RGV TEACHERS — THIS ONE’S FOR YOU!✏️🍎Back-to-school season is here, and we want to show some love to the incredible educ...
08/14/2026

RGV TEACHERS — THIS ONE’S FOR YOU!✏️🍎

Back-to-school season is here, and we want to show some love to the incredible educators who pour so much into our Rio Grande Valley students! 💙

We’re excited to kick off our Teacher Back-to-School Giveaway! 🎉

🍎 WHO CAN ENTER?
This giveaway is open to **certified teachers currently teaching in the Rio Grande Valley.**

📅 Giveaway Period:
August 14 – September 9, 2026

✨ HOW TO ENTER:
Complete the official Teacher Giveaway form using the link below! 👇
🔗 https://form.jotform.com/262244853868166

Please make sure all information submitted is accurate so we can contact our winner! 📚✏️

Help us spread the word by sharing this post or tagging an RGV teacher who deserves a little extra back-to-school love! 🫶🏼

Good luck to all of our amazing RGV educators! 🍎✨

*No purchase necessary. Eligibility requirements apply. Winner will be contacted using the information provided on the official entry form.*

08/14/2026

Happy Birthday to our Leo Queen & Boss Lady Claudia! ♌️🎂🎈🎉Your leadership, energy, and dedication keep us all moving forward. 💼💖
May you continue to shine everywhere you go — because a Leo never does anything quietly! 😆🔥

08/05/2026

Congratulations on 5 Years, Abby C, R.N. Marketing Queen! 🎉Five years of dedication, creativity, and heart! 💙
Keep shining, and thank you for your endless energy, attention to detail, and all of the behind-the-scenes work you do to make STSI a success. We truly appreciate everything you do 😊 Here's to many more years of success together!

07/27/2026

Today we are celebrating Joleen's 2-Year Work Anniversary! 🎉
Over the past two years, Joleen has grown into an invaluable member of our team. Thank you, Joleen, for your hard work, positive attitude, and willingness to always step up when needed. 👂🩺Cheers to many more years of success! 💜

Happy ! While everyone else is using 😂❤️🔥, we'll always be partial to one little emoji...👃
07/17/2026

Happy ! While everyone else is using 😂❤️🔥, we'll always be partial to one little emoji...
👃

07/10/2026

👃✈️⛱️Bon voyage ~Vacation mode: ON! but wait... Are your sinuses vacation-ready?✈️🏖️
Whether you're flying across the country or enjoying a weekend getaway, a little preparation can go a long way. Swipe through for simple tips to help keep congestion and sinus pressure from interrupting your summer plans. ☀️✈️💙

07/09/2026

🎉👏🩻⚕️Congratulations to our CT Technologist, Abby T., on 8 years with South Texas Sinus Institute.🎉🩻
As a valued member of our team, Abby assists with providing CT imaging that supports our providers in delivering quality patient care. We appreciate her dedication and commitment over the past eight years. Thank you for being part of the STSI family.

Address

4865 N McColl Road
McAllen, TX
78504

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

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