Appointments: (972) 253-4280

Visit one of our board-certified ear, nose, and throat doctors.


Coronavirus Information


About coronavirus COVID-19 testing

The CDC and local health departments have put out guidelines for who should be tested for coronavirus.  As it stands now in the DFW area, there are several places where patients can be tested.  We do not have the facilities or supplies in our office to be able to perform the test. 

The current criteria for testing includes these symptoms:

Fever greater than 99.5 degrees F


Cough or shortness of breath.

For the latest Dallas County updates go to:


Using Telemedicine Services

Now more than ever we will be relying on telemedicine to provide services for our patients.  We want to continue to provide continuous care to the greatest extent possible.  You can schedule a telemedicine visit by calling our office number just as you would for scheduling a regular visit.  Our medical receptionists will provide an appointment date and time and will take your insurance information if you are a new patient to our practice.  Medicare and commercial insurance plans consider telemedicine visits the same as regular visits in terms of co-pays, co-insurance, deductibles, etc.  Our medical receptionists will accept payment or make payment arrangements prior to your telemedicine visit. You will be given a website link that will activate your visit.  

When it is time for your visit you should be in a quiet private place to discuss your healthcare.  You will need to have a device such as a desktop computer, laptop, tablet, or smartphone that has both audio and video capabilities.

Important Information for Face-to-Face Visits

Starting March 30, 2020 we will be seeing face-to-face visits when necessary.  Face-to-face visits are those that require a hands-on exam or procedure to provide diagnosis or therapeutic benefit.  


--Moderate or severe ear pain with impacted wax or discharge that needs to be cleaned out by one of our doctors

--Hoarseness for more than 3 weeks that requires a scope exam to view the vocal cords

--Nose bleeding that may require nasal cauterization or packing

--Mouth or throat spot or bump that may require a biopsy

--Lump in neck that may require a biopsy

--Sudden hearing loss that requires an audiogram (hearing test)

--Abscess of throat that may require incision and drainage

Examples of Visits that we can do via Telemedicine

--Symptoms of acute sinus infections that may require prescriptions such as antibiotics

--Follow-up on CT scan or MRI results to discuss next steps in the treatment plan

--Dizziness or vertigo symptoms that may require ordering of tests or prescriptions

--Flare-up of allergy symptoms that may require prescription medication

--Follow-up on status of your health in relation to a previous treatment plan

Contact Us

The care you deserve.

Please send us a message, or call us for an appointment.

Fax any documents to (972) 739-3304

Metroplex ENT & Allergy

6750 N. MacArthur Blvd. Suite 300 Irving, Texas 75039



Monday - Friday: 8:00am - 12:00pm and 1:00pm - 5:00pm

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About Us

Compassionate Healthcare

Our mission is to provide you with personalized, high-quality care. We are dedicated to improving  your health and quality of life. 

Experienced Medical Professionals

Drs. Timothy Thomason and Constance Zhou offer a broad array of services including allergy and sinus disease, hearing loss, ear infections, thyroid/parathyroid surgery, snoring and sleep apnea treatments and much more. We know there is no such thing as one-size-fits-all cure, so we never use a one-size-fits-all approach to your diagnosis and treatment. 

A Personal Approach

Our goal is to improve and maintain your overall health and to empower you with an understanding of your condition and wellness plan. Let's get started today on  path to your life-long wellness.

How We Help


We offer allergy testing, sublingual drops for allergies, and allergy shots for long term control of allergy symptoms. 


Sinus Problems

We offer state-of-the-art treatments including balloon sinus dilation, nasal and sinus surgery, turbinate treatment, and a new procedure called cryoablation.

Hearing Health

You can rely on us for all of your hearing health needs.  We provide accurate hearing testing for adults and children.  Our audiologist, Mr. Stephen Lamson is an expert in current hearing aid technologies.


Pediatric ENT

We treat common pediatric ENT disorders such as ear infections, tonsil infections, and pediatric allergies.  Common surgeries include ear tube placement and removal of tonsils and adenoids.  

Head & Neck Surgery

We perform thyroid and parathyroid surgery as well as surgical removal of lumps and bumps in the face, scalp, and neck area.  We also perform surgery for complex head & neck cancer.

Snoring & Sleep Apnea

We have affordable home sleep studies and a variety of treatment options such as oral appliance therapy, CPAP, and surgical options.