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Mary Oneafolu, Pllc

Q: What type of organization is Mary Oneafolu, Pllc?

Mary Oneafolu, Pllc is registered in NPPES as a Mental Health Counselor (its primary provider taxonomy).

Mental Health Counselor in Palatine, IL · enumerated 2026 · authorized official Mary Oneafolu, President/Therapist.

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

National Provider Identifier

1598692949

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Registry record

Entity type Organization (Type 2)

Legal business name Mary Oneafolu, Pllc

Practice address 579 N 1st Bank Dr Ste 150, Palatine, IL, 60067

Phone (847) 644-3639

Enumeration date May 7, 2026

Last updated in NPPES May 7, 2026

Taxonomy & classification

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Primary

Authorized official

Name Mary Oneafolu

Title President/Therapist

Phone (847) 644-3639

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is Mary Oneafolu, Pllc?

Mary Oneafolu, Pllc is registered in NPPES as a Mental Health Counselor (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 2026-05-07.