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Seth A. Eappen, MD Pllc

Child & Adolescent Psychiatry Physician in Oak Brook, IL · enumerated 2017 · authorized official Seth Eappen, Owner.

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

National Provider Identifier

1639610553

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Registry record

Entity type Organization (Type 2)
Legal business name Seth A. Eappen, MD Pllc
Practice address 600 Enterprise Dr Ste 220, Oak Brook, IL, 60523
Phone (844) 632-7736
Fax (888) 972-3621
Enumeration date Mar 10, 2017
Last updated in NPPES Jul 2, 2018

Taxonomy & classification

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians Secondary
2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians Primary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Secondary

Authorized official

Name Seth Eappen
Title Owner
Phone (844) 632-7736

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 Seth A. Eappen, MD Pllc?
Seth A. Eappen, MD Pllc is registered in NPPES as a Child & Adolescent Psychiatry 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 2018-07-02.