We are very pleased to welcome you to our office following Dr Roger Harden’s retirement. Dr Harden and I have been colleagues since 1992 and close neighbors at Twelve Oaks Medical Center since October of 2016. I hope my staff and I can continue the excellent medical care Dr Harden has provided.

As you know, we will be transferring your charts to our office. You are welcome to a copy of your chart at any time and are free to choose another allergist if you so desire. To request a copy of your records, click here.

For those of you on allergy shots, we will transfer your extract to our office and you can begin getting your shots with us starting October 29th. We use the same supplier for extract and we do not anticipate any major changes in your shot regimen. We utilize a computerized system for tracking shots and will take a photo of you and provide you with a swipe card that you can use in the office to sign in to receive a shot. We require patients to wait for 30 minutes after each injection per National Guidelines and Dr Harden’s usual practice.

You can receive your shots anytime we are open, no appointment is required. I hope to see you as a patient within a month or two of your transfer if you are on shots.

Our office hours are:

  • Monday and Wednesday: 9 AM to 6 PM
  • Tuesday: 7:30 AM to 4 PM
  • Thursday: 9 AM to 4 PM
  • Friday: 9 AM to Noon

We might extend our hours from time to time to accommodate additional appointments.

Our phone number is: 512-345-7635

Fax: 512-345-1649

If you wish to become our patient, please complete this two and a half page questionnaire to help us get to know you.


William C Howland and the staff at Allergy and Asthma Center of Austin