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Sleep Medicine Group LLC

Sleep Medicine (Family Medicine) Physician in Tigard, OR · enumerated 2011 · authorized official Joseph Zelk, Owner.

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

National Provider Identifier

1326317355

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Registry record

Entity type Organization (Type 2)
Legal business name Sleep Medicine Group LLC
Practice address 10220 Sw Greenburg Road, Suite 150, Tigard, OR, 97223
Phone (503) 255-1200
Fax (503) 408-6856
Enumeration date Dec 20, 2011
Last updated in NPPES Dec 20, 2011

Taxonomy & classification

207QS1201X Sleep Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Joseph Zelk
Title Owner
Phone (503) 255-1200

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 Sleep Medicine Group LLC?
Sleep Medicine Group LLC is registered in NPPES as a Sleep Medicine (Family Medicine) Physician (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 2011-12-20.