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William E.P. Mcmiller, MD & Associates LLC

Child & Adolescent Psychiatry Physician in Oak Park, IL · enumerated 2016 · authorized official William Mcmiller, Owner.

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

National Provider Identifier

1487103453

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Registry record

Entity type Organization (Type 2)
Legal business name William E.P. Mcmiller, MD & Associates LLC
Other name <Unavail>
Practice address 18 Lake St, Oak Park, IL, 60302
Phone (708) 434-0336
Fax (708) 575-0180
Enumeration date Sep 30, 2016
Last updated in NPPES Sep 30, 2016

Taxonomy & classification

2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License 036-078553 (IL) Primary

Authorized official

Name William Mcmiller
Title Owner
Phone (708) 434-0336

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

Who is the authorized official for William E.P. Mcmiller, MD & Associates LLC?
NPPES lists William Mcmiller (Owner) as the authorized official for this organization.
What is the NPI number for William E.P. Mcmiller, MD & Associates LLC?
The NPI for William E.P. Mcmiller, MD & Associates LLC is 1487103453, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-09-30.