- On September 1, 2021
You can now receive your Pfizer or Moderna COVID-19 vaccine at South Texas Sinus Institute.
STSI is now scheduling appointments for first, second or booster (third) doses of both the Pfizer and Moderna vaccines.
These appointments are only available on Fridays and must be scheduled in advance (no walk-ins).
You can request a vaccination appointment here and our staff will contact you promptly to confirm the date and time.
We are excited to be able to help serve our community in this critical time. If you have any questions, please give us a call at 956-661-8200 or send us a message online.