Center for Sleep Disorders

The Center for Sleep Disorders at the New York Head and Neck Institute of North Shore-LIJ Health System offers world-class diagnosis and treatment of sleep disorders and loud snoring.

With expertise in minimally invasive procedures, the Center focuses on the use of endoscopic (a small fiberoptic telescope inserted through a natural body opening or small incisions) techniques for nasal surgery and laser surgery to treat the causes of obstructive sleep apnea (OSA) and loud snoring.

Our Physicians

At The Center for Sleep Disorders, our exceptionally knowledgeable staff is dedicated to offering patients everything they need to understand the treatments and procedures that they will be undertaking. Educated decisions are predicated on accurate information, and our friendly staff is communicative and always willing to help.

Our surgical team consists of multidisciplinary specialists with a focus on head and neck surgery and ear, nose and throat medicine/otolaryngology.

Yosef Krespi, MD, FACS, is the director, Center for Sleep Disorders, NYHNI associate director, Head & Neck Surgery service line, North Shore-LIJ.

Preparing for Your Visit


Monday - Friday
8:30am - 6:00pm EST

Patient Forms

You can save time by downloading the following forms, filling them out and faxing them to us at (212) 434-4597. You may also bring the forms to your next appointment. This will save you time on the day of your visit.

If you require assistance, please contact Kimberly Gross at (212) 434-4525 or via email.

Using Public Transportation

Bus Map
By Subway
4, 5, 6, 6x to 59th Street
N, Q, R to Lexington Avenue
Subway Map

Air Travel

For details on John F. Kennedy, LaGuardia or Newark Liberty Airports, visit the website for the Port Authority of New York and New Jersey at, or call (212) 435-7000. The website includes ground transportation options.


For hotels throughout New York City, visit or call (800) 356-1123.

Contact Us

110 East 59th St. #10A
New York, NY 10022
Ph: (212) 434 4500
Fx: (212) 434 4597
1 (800) NY-NYENT
Kimberly Gross
Office Manager/Surgical Administrative Assistant
(212) 434-4525

Frequently Asked Questions

Read through these frequently asked questions to determine whether you might have obstructive sleep apnea and should come in for an evaluation and consultation.

My partner says I snore. What can I do about it?

Snoring can be annoying for you and your bed partner. It can awaken those around you and put a strain on your relationships. Snoring can disrupt your sleep, but more importantly, it might be a sign of a more serious medical condition called OSA, or obstructive sleep apnea. Our doctors can determine whether your snoring warrants further tests and/or a sleep study. Learn more about snoring >>

My doctor says that I might have sleep apnea. What is sleep apnea?

Obstructive sleep apnea (OSA) can be serious. Apnea means your breathing may slow down or even stop for short periods of time during sleep, sometimes as frequently as 20 or 30 times an hour. To resume breathing, you wake up and repeat the cycle. This makes for a restless and poor night of sleep. It also means that you may never reach the deep level of sleep needed to refresh the body and mind.

More importantly, it can cause severe health problems, such as diabetes, high blood pressure, stroke and heart failure. Sleep apnea puts a strain on the heart: when you stop breathing, the drop in blood oxygen levels causes the right side of your heart to pump blood through high resistance in the blood vessels of the lungs during the episode. It is extremely important to be evaluated to determine whether you have sleep apnea. Learn more about sleep apnea >>

What are some of the signs of sleep apnea?

Depending upon the severity of their sleep apnea, patients will complain of fatigue, loss of sexual drive, depression, mood swings, anger outbursts and sometimes falling asleep at the wheel of a car or in public spaces. Learn more about sleep apnea >>

What causes sleep apnea?

Obstruction of the airway by tissue is a major cause of sleep apnea, and can occur anywhere from your nose to your vocal cords and trachea. The physical exam gives the doctor a good sense of where the obstruction is occurring. Some abnormalities of the airway that can cause obstruction in your breathing include:

  • Enlarged tonsils
  • Enlarged tongue
  • Excess soft palate and/or large uvula
  • Small, or set back jaw
  • Deviated nasal septum (the cartilage dividing the nose into nostrils)
  • Enlarged turbinates (scroll shaped boned on the side walls of the nose whose lining swells producing plugging the nose)
  • Enlarged adenoid tissue (tonsil tissue on the back wall of the throat above the soft palate, nasopharynx)
  • One very common, and major cause of apnea is being overweight, or being obese. Also people with shorter necks are often at risk for sleep apnea.

Learn more about sleep apnea >>

Should I be concerned about apnea?

If you snore, it’s a good idea to discuss this with your doctor. Even if you don’t have apnea, snoring can greatly affect your quality of life, and there are many treatment options for it. If you have any of the following symptoms, you may have apnea:

  • If you gasp or snort in your sleep
  • Wake up multiple times during the night
  • If you are still tired after a full night’s sleep
  • Fall asleep during the day without reason, including at the wheel of a car.
  • Wake up in the morning with a headache

Learn more about sleep apnea >>

What are the treatments for sleep apnea?

Depending on the cause, the doctor will determine your options, (both non-surgical and surgical) after the sleep study has been completed.

  • Weight loss has been shown to be a successful treatment.
  • A CPAP machine (continuous positive airway pressure), which aids in breathing during sleep
  • Multiple surgical options to remove the different forms of obstruction

Learn more about sleep apnea >>

What is a sleep study, and why do I need one?

In a monitored setting, you will stay overnight so a specially trained technician can monitor your sleep and measure different body and brain functions including:

  • Blood oxygen levels
  • Heart rate
  • The percentage of time you spend in each stage of sleep
  • Your rate of breathing
  • How often your breathing slows down or stops.

A sleep study is a time-proven, accurate way to determine whether you have sleep apnea, and how severe it is.

What will the sleep study be like?

You will have a private "bedroom" in a comfortable setting. Different sensors will be attached to your body by a trained sleep technician. Once asleep, your heart rate, breathing, oxygen level and other measurements will be monitored. A microphone and video camera will record your breathing and body movements. Surprisingly enough, most people are able get some sleep in spite of these sensors and monitors. Most people who are tested are sleep deprived to some degree. You leave the next morning early enough to go to work.

Do I need to prepare for the sleep study?

Just bring what you usually would to a friend's house or a hotel. Loose, comfortable sleeping clothes are best. No alcohol, sedatives or medications, other than prescription drugs, are allowed (check with the sleep lab).

I had the laser assisted uvula palatoplasty (LAUP) surgery and it didn't work. What do I do now?

Depending on how your surgery was done, there might be other options, but you need to come in for an examinationso we can work together to determine a course of action.

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In Manhattan:
    (212) 434-4500
In Long Island:
    (718) 470-7550
    (516) 470-7550
In Staten Island:
    (718) 226-6110
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Meet An Expert

Yosef Krespi, MD, FACS

Yosef Krespi, MD, FACS

Yosef Krespi, MD, FACS is the Director, Center for Sleep Disorders, NYHNI, Associate Director, Head & Neck Surgery Service Line, North Shore-LIJ.

Harly Greenberg, MD, FAASM, FCCP

Harly Greenberg, MD, FAASM, FCCP

Harly Greenberg, MD, FAASM, FCCP is Medical Director, North Shore-LIJ Sleep Disorders Center; Program Director, Hofstra-North Shore LIJ Sleep Medicine Fellowship Program; and Professor of Medicine, Hofstra-North Shore-LIJ School of Medicine.