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Willow Tree Mental Health Center, LLC

Child & Adolescent Psychiatry Physician in O Fallon, MO · enumerated 2016 · authorized official Katie Wilson, Medical Director.

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

National Provider Identifier

1992254452

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Registry record

Entity type Organization (Type 2)
Legal business name Willow Tree Mental Health Center, LLC
Other name <Unavail>
Practice address 9979 Winghaven Blvd, Suite 202, O Fallon, MO, 63368
Phone (636) 695-2690
Enumeration date Sep 26, 2016
Last updated in NPPES Sep 26, 2016

Taxonomy & classification

101YP2500X Professional Counselor Behavioral Health & Social Service Providers Secondary
2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License 2011040150 (MO) Primary

Authorized official

Name Katie Wilson
Title Medical Director
Phone (636) 695-2690

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

Where is Willow Tree Mental Health Center, LLC located?
The practice location on file with NPPES is in O Fallon, MO.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2016-09-26. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-09-26.