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Institute of Lung and Sleep Disorder

Excellence in Healthcare

We hold ourselves to a very high level of excellence in providing Healthcare services to our patients. This motto runs through the entire operations of our facility from the initial screening, the equipment we utilize and adherence to the protocols of health and safety. We strive to improve your quality of life. We provide an optimal experience to each of our patients.

Specialist Physicians

Our physicians are board certified in their area of expertise and have completed extensive education and hands on specialized clinic training. They constantly upgrade their knowledge in their areas of expertise and are driven to professionalism.

Patient Education

Patient education is one of the most important part of the service that we provide as it plays a strong role in prevention of a health care problem from progressing. We urge our patient to research about their condition and to enquire us about how to prevent it from escalating into a healthcare issue.

Our Providers

We provide a wide range of healthcare services

Arshad Khalil, MD

Pulmonary, Critical Care And Sleep Specialist

Rakhshi Hydari, MD

Primary Care Physician

What We Do

We provide a wide range of healthcare services

Chronic Obstructive Pulmonary Disease/Asthma

COPD causes airway obstruction, difficulty breathing, cough, mucus production and shortness of breath/Asthma causes wheezing, breathlessness and chest tightness.

Lung Cancer Screening

It detects cancer at an early stage, while it can still be cured. Without screening, most cases are diagnosed after the cancer is so advanced it’s not treatable.

Pulmonary Function Test

Pulmonary function testing is essential for diagnosing the cause of symptoms such as shortness of breath, coughing, and wheezing.

Sleep Disorders

Sleep disorders are a group of conditions that affect the ability to sleep well on a regular basis. Whether caused by a health problem or severe depression, sleep disorders are becoming increasingly common in the US.

Interstitial Lung Diseases

Interstitial lung disease includes a large group of more than 200 conditions that permanently damage your lungs.

Pulmonary Hypertension

Pulmonary hypertension is an increase in blood pressure caused by blockages in the arteries in the lungs and along the right side of the heart.

Annual Physicals

Each year you should get a complete physical done so your doctor can get a general idea of your current health and how it has progressed.


The overall High Blood Pressure prevalence in Texas is 35.1%, we can help you manage and overcome your hypertension to reduce your risk of complications.

Geriatrics Medicine

Our Primary Care Geriatric Physician has specialized in treating conditions that affect older adults. Find preventive care and learn how to lower your risk of serious health issues in advanced age.

We Got You Covered

We accept most major insurance plans

united healthcare bluecross blueshield aetna cigna humana triwest cms
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Frequently Asked Questions

  • What is a sleep study?

    A sleep study is a diagnostic test utilized in the evaluation of patients with sleep disorders typically characterized by symptoms of excessive daytime sleepiness and/or fatigue, unrefreshing sleep, snoring, nocturnal movement disorders, and suspected sleep apnea. Sleep studies are an important addition to the comprehensive sleep evaluation because patients are not fully aware of what happens during sleep. During the sleep study, we monitor several physiological parameters including brain waves, eye movements and chin muscle tone to determine the stage of sleep and airflow, snoring, oxygen levels, electrical activity of the heart, arm and leg movements, and abdominal and chest movement to diagnose specific sleep disorders.

  • In patients with high likelihood of moderate to severe sleep apnea, home sleep testing is comparable to tests performed in the sleep lab. HSTs tend to underestimate the severity of obstructive sleep apnea (OSA) compared to an in-lab sleep test, but it does detect the presence of OSA.

  • Depending on your disease, sometimes you may feel short of breath even though your body is getting the oxygen it needs. It is important to use good breathing techniques, use your medications properly, and discuss with your healthcare provider your symptoms so your specific needs can be met. Exercise can be used to improve functional endurance and strength, so tasks become easier with less shortness of breath.

  • Pulmonary function tests (also called PFTs or lung function tests) help determine how well your lungs are functioning. The results of these tests determine how much air your lungs can hold, how quickly you can move air into and out of your lungs, and how well your lungs are able to use oxygen and get rid of carbon dioxide. The tests help your doctor determine if you have a lung disease, provide a measure of how significant your lung disease is, and can show how well the treatment for your lung disease is working.

  • Please arrive 30 minutes before your appointment to fill out the necessary paperwork (see our Forms Page). Your visit may take up to 90 minutes. Occasionally, delays do happen. As always, we will do everything we can to make sure that your visit runs smoothly and on time.

  • Most insurance companies, as well as Medicare and Medicaid, provide coverage for sleep studies. But patients should always verify their coverage benefits before a study is done by calling the member-benefits contact at their insurance company. The representative should be asked about outpatient sleep study coverage and coverage benefits under the CPT insurance codes of 95810 or 95811.