Patient Information

Emergency Information for Current Patients

If you are having a medical emergency outside of our normal operating hours, Dr. Cook or his on-call doctor can be reached through the Medical Exchange at 467.5057. If a life threatening emergency occurs, go immediately to the nearest hospital, or call EMS (911).


For established visit and new patient visit cancellations, please give at least 24 hour notice to avoid a $50 cancellation fee. For skin test appointments, please notify us at least three days in advance so that another patient can discontinue his/her antihistamines and be tested in your place and to avoid a $100 cancellation fee.

Insurance Information

We belong to many of the major health insurance plans including: AETNA, Blue Cross Blue Shield, Cigna, Fedselect, First Health, Healthselect, HMO Blue, Humana, Medicare, Seton Health Plan, United Healthcare, and UT Select. We also belong to a number of physician associations including: PHCS, Seton Physician Hospital Network (SPHN), and St. David's Capital Area Providers (CAP). Through these IPAs, we are able to provide in-network services for a large number of payors. If you are considering scheduling an appointment with Dr. Cook, please call the 800 number located on your insurance card to verify that he is an in-network provider. For all patients with HMO or POS plans, please make sure you obtain an appropriate referral from your primary care physician, if your plan requires it. Please note that any time you change primary care physicians, you will need to obtain a new referral.

We also request that you contact your insurance company to find out what your benefits are for allergy testing, injections and serum.

Prescription Refills

For prescription refills, it is best to request refills from your pharmacy. The pharmacist will call us for verification. Call our office directly, however, for refills on antibiotics or steroid (cortisone type) medications so that we may get additional information from you. For your health and safety, Dr. Cook will not extend refills if he has not seen you for an office visit within the past year. Please schedule an appointment for a check-up at least one month before your prescription expires. Unless it is a medical emergency, refills are only given during regular business hours. If you contact Dr. Cook for a non-emergent refill through the Medical Exchange after hours, you will be billed a $25 fee which is not covered by insurance.

Hospital Affiliations

Dr. Cook has privileges at Brackenridge, Dell Children's Medical Center, Seton Medical Center, St. David's Hospital, and the Heart Hospital of Austin.

Languages Spoken

We speak English and Spanish / Se habla español.


Central Texas Allergy and Asthma Center offers and maintains this website to provide information of a general nature about the practice and conditions requiring the services of an allergist. The information is provided with the understanding that Central Texas Allergy and Asthma Center is not engaged in rendering surgical or medical advice or recommendations via this website. Any information in the publications, messages, postings or articles on this website should not be considered a substitute for consultation with your physician to address individual medical needs. Individual facts and circumstances will determine the treatment that is most appropriate for you.