Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Preferred Sleep Labs, LLC

Sleep Disorder Diagnostic Clinic/Center in Glenview, IL · enumerated 2007 · authorized official Michel Kretchmar, President.

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

National Provider Identifier

1114065257

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Preferred Sleep Labs, LLC

Practice address 2600 Lehigh Ave, Suite 438, Glenview, IL, 60026

Phone (847) 486-9773

Fax (847) 486-9767

Enumeration date Feb 1, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

261QS1200X Sleep Disorder Diagnostic Clinic/Center Ambulatory Health Care Facilities · License 261QS1200X (IL) Primary

Authorized official

Name Michel Kretchmar

Title President

Phone (847) 486-9773

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.

Read the full guide → Validate an NPI →

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.

Where is Preferred Sleep Labs, LLC located?

The practice location on file with NPPES is in Glenview, IL.

Providers at this address

Browse all →

Preferred Sleep Labs Specialist · Glenview, IL NPI 1366526717

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.