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Oak Tree Clinical Services, P.C.

Community/Behavioral Health Agency in Bloomingdale, IL · enumerated 2009 · authorized official Michael Lang, President.

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

National Provider Identifier

1598905713

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Registry record

Entity type Organization (Type 2)
Legal business name Oak Tree Clinical Services, P.C.
Practice address 129 Fairfield Way, Suite 208c, Bloomingdale, IL, 60108
Phone (630) 258-7866
Enumeration date Feb 27, 2009
Last updated in NPPES Sep 7, 2014

Taxonomy & classification

251S00000X Community/Behavioral Health Agency Agencies · License 180005451 (IL) Primary

Authorized official

Name Michael Lang
Title President
Phone (630) 258-7866

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 2014-09-07. Verify at npiregistry.cms.hhs.gov.
Where is Oak Tree Clinical Services, P.C. located?
The practice location on file with NPPES is in Bloomingdale, IL.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-09-07.