Virtual visits now available. You may be able to schedule a virtual visit with your provider. For more information, call your doctor’s office.
Covenant Health is an innovative, Catholic regional delivery network and a leader in values based, not-for-profit health and elder care. We sponsor hospitals, nursing homes, assisted living residences and other health and elder care organizations throughout New England.

Sleep Disorders Center

Sleep problems interfering with your quality of life? At the St. Joseph Hospital Sleep Disorders Center, many disorders can be diagnosed in a single visit. We treat all sleep disorders, including:

  • Narcolepsy
  • Sleep apnea
  • Daytime drowsiness
  • Restless leg syndrome

Our state-of-the-art Center offers a private and comfortable setting where we can provide a diagnosis and treatment plan for your individual sleeping problems. Sleep studies are conducted when appropriate.

We accommodate our patients by providing home sleep studies, which are done in the privacy of your home, or in-lab sleep studies, which are done in our overnight state-of-the-art sleep center.  

Directed by William Stephan, M.D., FCCP, diplomat of the American Board of Sleep Medicine.

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166 Kinsley Street

Nashua, NH 03061-2013

Tel: (603) 598-3374


Park your car on the second level (yellow level) of the Medical Arts parking garage.  Upon entering the hospital, turn right and proceed into the Medical Arts Building East.  Go down the ramp and turn to the right at the end of the hall.  The Sleep Center/EEG Department is the first door on the right in Suite 202.