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Merit Center for Sleep Health of St. Charles, LLC

Sleep Disorder Diagnostic Clinic/Center in St Charles, IL · enumerated 2007 · authorized official William Stamer, Executive Director.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1134279169

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Registry record

Entity type Organization (Type 2)
Legal business name Merit Center for Sleep Health of St. Charles, LLC
Practice address 311 N 2nd St, Suite 203, St Charles, IL, 60174
Phone (630) 652-7900
Fax (630) 652-7999
Enumeration date Jan 11, 2007
Last updated in NPPES Jan 5, 2012

Taxonomy & classification

261QS1200X Sleep Disorder Diagnostic Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name William Stamer
Title Executive Director
Phone (630) 652-7900

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What type of organization is Merit Center for Sleep Health of St. Charles, LLC?
Merit Center for Sleep Health of St. Charles, LLC is registered in NPPES as a Sleep Disorder Diagnostic Clinic/Center (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-05.