Sleep Division

The Division of Sleep Medicine at Massachusetts General Hospital provides sophisticated diagnostic testing and comprehensive treatment options for people struggling with any kind of sleep problem.

The goal of the Division of Sleep Medicine consists of a four part mission, each part unique and equally important to the advancement of care in the emerging field of sleep medicine..

Our approach to treating sleep disorders encompasses both clinical work and research. As a leading teaching hospital, we have the following goals:

  • To clinically treat every patient with the considerable resources at our disposal
  • To train physicians who eventually will be caring for their own patients with sleep disorders
  • To research new techniques and devices that could help diagnose and treat sleep disorders
  • To educate patients and  the general public on common misconceptions about sleep

The sleep lab is housed within the hospital's neurology department. This arrangement creates numerous benefits for our division and our patients. However, our faculty include physicians trained in other specialties as well, including psychiatry, pulmonology, surgery, and dentistry.

*We also have affiliated faculty members in surgery, dentistry, and pediatric – please visit this site for further information.

Patient Testimonials

AdusumilliWhen his doctor couldn't find a solution to his ongoing sleep issues, Jon, 66, sought help from an expert- Dr. Josna Adusumilli, sleep expert at MGH Neurology.  After a sleep study and a consultation with Jon, Dr. Adusumilli was able to connect his medication for Restless Leg Syndrome to contributing to his sleep issues, as well as diagnosing a sleep disorder, sleep apnea.  Now off his RLS medication and enjoying sleep again with the help of a CPAP mask, Jon says, "the level of sophistication and comprehensive care I'm getting here at MGH is such a contrast to my former provider.  I'm really grateful. Dr. Adusumilli has been fantastic-such a great help.  She was the perfect person to see."

Originally lead by Dr. John Stakes, the founding director of the lab, MGH has offered clinical sleep medicine services for over 30 years. Under his leadership, the laboratory was initially based in the main hospital. In 2007 the Division of Sleep Medicine took a major step forward with the opening of our current 8-bed sleep laboratory at the Wyndham Hotel next to MGH.
We focus on patient experience to ensure that your night in the lab is both comfortable and informative. Each hotel room in our unit has a large bed and private bathroom. Each patient is cared for by a sleep technologist throughout the night. For FAQ’s click on the link below.

The MGH sleep division is headed by Matt Bianchi, MD, PhD. Each member of our group cares for patients over the full spectrum of sleep disorders. It is the mission of our sleep laboratory to provide the highest level of diagnostic and therapeutic services for sleep apnea, insomnia, and other sleep disorders. Our active ambulatory clinic provides consultation and chronic care for patients with a spectrum of sleep disorders. The division also hosts cutting edge clinical research in several areas including: sleep apnea, insomnia, restless leg syndrome, and beyond.

Patients seeking our services suffer from a variety of sleep disorders including:

  • Sleep apnea
  • Insomnia
  • Narcolepsy
  • Parasomnia (e.g. acting out dreams)
  • Restless legs syndrome
  • Circadian disorders

Patients who suspect they might have a sleep disorder should speak with their primary care physician, who might want to order a sleep study (see below) and/or a consultation from our staff of sleep experts.

The Division of Sleep Medicine's sleep laboratory features an eight-bed diagnostic center for testing outpatients. For comfort and convenience, it is located at the Wyndham Hotel, immediately next to Mass General. As we tell our patients, coming to the sleep lab is similar to checking in to a hotel.
This state-of-the-art facility allows us to safely and efficiently administer overnight testing in the form of sleep study called a polysomnogram. We also perform daytime testing, including the multiple sleep latency test, or MSLT, as well as mask fitting and desensitization clinic. All of our facilities are wheelchair-accessible.  We can accommodate children age 13 and above for overnight testing.

Our division conducts research  that produce significant breakthroughs in diagnosing and treating patients. For information about ongoing studies and the ability to participate, visit our website:


Referrals are accepted from primary care physicians and specialists by calling 617-724-7426. We require a completed Sleep Study Requisition form which can be downloaded as a PDF. Please print, complete and fax to 617-724-6513. For referring MDs, we require a typed clinical history note (please note, hand written records are not accepted).
Our Staff

Updated 4/16/15

Restless Legs Syndrome (RLS)

Restless legs syndrome (RLS) is a sleep disorder in which a person experiences unpleasant sensations in the legs.

Sleep Apnea

Sleep apnea is a serious breathing disorder that causes brief interruptions of breathing during sleep.


Snoring is the sound that occurs during sleep when flow of air is obstructed in the area where the tongue and upper throat meet the soft palate and uvula.

The following related clinical trials and research studies are currently seeking participants at Massachusetts General Hospital. Search for clinical trials and studies in another area of interest.

Sleep Research: Do Try This At Home

About 10 percent of Americans suffer from sleep apnea, a disorder of nighttime breathing that disrupts sleep but often goes undiagnosed. Apnea can lead to daytime drowsiness, which puts people at risk of accidents and injuries. Poor sleep due to apnea or other causes also raises the chances of developing high blood pressure, diabetes, depression, heart disease and stroke.

New year, better sleep

Better sleep is a resolution that should be on everyone’s list, according to Josna Adusumilli, MD, an MGH neurologist and sleep specialist. But when it comes to sleep, how much is enough and what is the best way to get restful sleep? Adusumilli explains.

The Division of Sleep Medicine Receives Program Accreditation

The Division of Sleep Medicine at Massachusetts General Hospital in Boston recently received program accreditation from the American Academy of Sleep Medicine (AASM).

Continuing Medical Education in Neurology

The Neurology Service at Mass General offers Continuing Medical Education through Harvard Medical School.

Partners Neurology Residency

Neurology residents, program graduates, faculty members, and the education director talk about training at Mass General Hospital and Brigham and Women’s Hospital.

Division of Sleep Medicine, Department of Neurology

Wang Ambulatory Care Center
Division of Sleep Medicine, Neurology
15 Parkman Street, Wang ACC 720
Boston, MA 02114

Phone: 617-724-7426
Fax: 617-724-6513

Public Transportation Access: yes
Disabled Access: yes

Adult Overnight Outpatient Testing Unit 

Massachusetts General Hospital
Division of Sleep Medicine, Department of Neurology
Wyndham Hotel
5 Blossom Street
Boston, MA 02114

Patient Frequently Asked Questions 

Download FAQ PDF

Q: What is your office contact information?
A: Phone: 617-724-7426
Fax: 617-724-6513

Q: Where is the clinic location?
A: Our clinics are at the following locations:
Wang Building, Floor 8, Suite 835
Wang Building, Floor 7, Suite 720
Wyndham Hotel 2nd Floor, 5 Blossom St. Boston MA 02114

Q: What is your mailing address?
A: Attn: Sleep Unit
Wang 720
55 Fruit Street
Boston, MA 02114

Q: What is required in order to schedule a new patient appointment?
A: Most recent office visit note from your referring doctor explaining why the patient needs to be seen and if it is for a consult for Sleep Study. (If for Sleep Study what kind: Diagnostic, Split or Titration Study).
We need copies of any prior Sleep Studies

Q: What is my doctor’s NPI number for an insurance referral?
A: Dr. Matt Bianchi: 1881715084
Dr. John Stakes: 1871570325
Dr. Kenneth Sassower: 1619968179
Dr. John Winkelman: 1619950045
Dr. Josna Adusumilli: 15686633789
Dr. Deirdre O’rourke: 1194092858

Q: How can I obtain a copy of my medical records from the Sleep Unit?
A: You will need to complete the MGH Release of Information form and either fax or mail it back to our office. The release form can be found here.

Q: Where do I have my PCP fax my insurance referral to?
A: Referrals Office fax: 781-960-1265

Q: How do I know if my insurance will cover my visit?
A: Please call your insurance company to verify that your appointment or test will be covered. You can also contact our Financial Access Unit at 617-726-6828.

Q: How do I update my demographic and insurance information?
A: Please contact our Registration and Referrals Center at 866-211-6588

Q: How long will it take for me to receive my test results and how will they be communicated to me?
A: For Sleep Study results it will take 2-3 weeks for the results to be ready.  Once they are ready they are sent to the patients referring doctor and they will need to contact the patient to review.

Next Steps: