Houston, Texas

Pulmonary & Sleep Medicine

Millennium Physicians Respiratory & Sleep Disorder Specialists make up a team of 12 trained physicians in Pulmonary, Critical Care and Sleep Medicine. Our physicians have over 20 years of experience, diagnosing and treating a wide range of diseases and disorders of the respiratory tract.

Whether you have sleep apnea, unexplained shortness of breath, a respiratory disease, or a rare genetic disorder, our team of trusted, experienced, board certified pulmonary specialists can help you and your family members improve your health and overall quality of life.

Millennium Physicians Respiratory & Sleep Disorders Specialists are located at 5 convenient locations in North Houston, and two offices include our sleep center allowing physicians to evaluate and treat sleep disorders at one location. We provide a wide range of advanced services using a compassionate, patient-centered approach, supported by the state-of-the-art technology and caring, knowledgeable staff.

Pulmonary Diseases and Disorders Treated

  • Asthma
  • Chronic Bronchitis
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Emphysema
  • Lung Disease
  • Pneumonia
  • Pulmonary Fibrosis
  • Pulmonary Hypertension
  • Sarcoidosis
  • Sepsis
  • Shortness of Breath
  • Dyspnea
Millennium Physicians

Sleep Disorders Treated:

  • Hypersomnia
  • Insomnia and Fatigue
  • Narcolepsy
  • Excessive Daytime Sleepiness
  • Obstructive Sleep Apnea (OSA)
  • Parasomnias
  • Periodic Limb Movement Disorder (PLMB)
  • Restless Leg Syndrome (RLS)
  • Snoring

Pulmonary and Sleep Medicine Services

Millennium Physicians

most sleep disorders are easily treatable

Once your sleep study is completed and it is determined that you have sleep apnea, what are the next steps?

The good news is that most sleep disorders are easily treatable. Millennium Sleep Center offers patients with sleep apnea, access to Continuous Positive Airway Pressure (CPAP) devices that deliver air at a fixed pressure through the night to prevent airway obstruction. CPAP is the gold standard treatment for your sleep breathing disorder and is vital for your quality of life. CPAP therapy can prevent serious risks of obstructive sleep apnea such as myocardial infarction, diabetes, excessive urination at night, improve memory and cognitive functions, improve desired sleep, treat hypertension and control gastroesophageal reflux disease (GERD). CPAP is considered the most effective treatment for obstructive sleep apnea (OSA).

Whether you are a new patient to CPAP therapy or looking to upgrade your device, our clinical sleep specialists are experts in not only selecting the equipment and fitting CPAP masks specifically for you, but also to help resolve issues you may encounter with your device.

Devices We Use


  • SoClean is the world’s first automated CPAP cleaner and sanitizer
  • SoClean kills 99.9% of CPAP germs and bacteria – just drop the mask in, close the lid and walk away. It sanitizes the mask, hose and reservoir – hands-free!
  • Simple set-up and easy to use with cycle indicator lights
  • No harsh chemicals or water

Transcend 3 miniCPAP™

  • Transcend 3 miniCPAP™ is the perfect travel-size companion to your at-home CPAP machine. Small as a soda can, quiet as a whisper, and ultra-lightweight, Transcend 3 slips easily into your briefcase, purse, carry-on or backpack so you can sleep comfortably wherever life takes you.
  • Transcend 3 miniCPAP™ is designed for travelers, compatible with any CPAP mask and any CPAP hose, can unplug with power options to sleep anywhere and is designed to stay clean and dry, all the time.


Smaller and lighter than a smartphone, Flyp™ nebulizer delivers full-sized effectiveness with pocket-sized portability. It’s whisper-quiet, thanks to HypersoniQ™ technology. Its internal disk vibrates at an ultrasonic speed — 2,000 times faster than a hummingbird’s wings — creating a fine aerosol of medication. You'll find Flyp to be nimble, delivering a treatment in an average of 7 minutes. The internal battery houses enough charge for as many as 15 or more treatment and cleaning cycles, before requiring a recharge via Micro-USB. And Flyp is warrantied for three years. It’s the nebulizer engineered to fit into your life — making it easier to follow your prescribed treatment plan for asthma, COPD, and other respiratory conditions.


The Inogen One G5 offers the most oxygen per pound for a portable oxygen concentrator on the market today. With flow settings from 1-6, the Inogen One G5 is designed to dramatically increase independence for most users 24/7. The Inogen One G5's user interface has been designed with an easy-to-read LCD display and simple control functions. It can be charged at home or on the go - giving you the freedom of Oxygen. Anytime. Anywhere. The Inogen One G5 is your one solution, your single solution, for oxygen at home or away.

ResMed AirMini™

The AirMini self-adjusting system is indicated for the treatment of obstructive sleep apnea (OSA) in patients (female patients with mild to moderate OSA when using AutoSet for Her treatment mode) weighing more than 66 lb. (30 kg). It is intended for home and hospital use.

Meet Our Pulmonary & Sleep Medicine Team

Millennium Physicians

Amrew Al-Ahmad, MD

Millennium Physicians

Wael Asi, MD, FCCP, PA

Millennium Physicians

Mohsin K. Bajwa, MD, FCCP


Salah Fares, MD, FCCP

Millennium Physicians

Jefy M. Mathew, MD,

Millennium Physicians

Amarbir S. Mattewal, MD

Millennium Physicians

Hammad N. Qureshi, MD, MBBS

Millennium Physicians

William A. Rhoton, MD, FCCP

Millennium Physicians

Humberto C. Sasieta, MD, FCCP

Millennium Physicians

Ather J. Siddiqi, MD, MRCPI, FCCP, FAASM, FACP