National Sleep Foundation

National Sleep Foundation is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Physicians & Surgeon Sleep Disorders
• Sleep Disorders Centers

North American Industry Classification System (NAICS) Categories:

• Offices Of Physicians (Except Mental Health Specialists) > Physicians & Surgeons Sleep Disorders
• All Other Outpatient Care Centers > Sleep Disorder Centers

Standard Industry Classification (SIC) Categories:

• Offices And Clinics Of Doctors Of Medicine > Physicians & Surgeons Sleep Disorders
• Specialty Outpatient Facilities, Nec > Sleep Disorder Centers