Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Contra Costa Sleep Center LLC

Sleep Disorder Diagnostic Clinic/Center in Walnut Creek, CA · enumerated 2006 · authorized official Michael Cohen, Ceo.

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

National Provider Identifier

1932217791

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Registry record

Entity type Organization (Type 2)

Legal business name Contra Costa Sleep Center LLC

Practice address 1700 Ygnacio Valley Rd, Suite 100, Walnut Creek, CA, 94598

Phone (925) 935-7667

Fax (925) 945-7667

Enumeration date Aug 29, 2006

Last updated in NPPES Jul 23, 2012

Taxonomy & classification

261QS1200X Sleep Disorder Diagnostic Clinic/Center Ambulatory Health Care Facilities · License 034478 (CA) Primary

Authorized official

Name Michael Cohen

Title Ceo

Phone (925) 935-7667

Other identifiers

Identifier	Type	State	Issuer
290015163	Other	CA	RR MEDICARE
ZZZ05580Z	Other	CA	BLUE SHIELD PIN #

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2012-07-23. Verify at npiregistry.cms.hhs.gov.

Where is Contra Costa Sleep Center LLC located?

The practice location on file with NPPES is in Walnut Creek, CA.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-23.