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Grief Recovery Group, Inc

Clinical Social Worker in Oak Park, IL · enumerated 2014 · authorized official Mary Hartnett, President.

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

National Provider Identifier

1356755334

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Registry record

Entity type Organization (Type 2)
Legal business name Grief Recovery Group, Inc
Practice address 1010 Lake Street, Suite 620, Oak Park, IL, 60301
Phone (708) 359-5225
Enumeration date Jun 17, 2014
Last updated in NPPES Oct 4, 2019

Taxonomy & classification

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 149.013125 (IL) Primary

Authorized official

Name Mary Hartnett
Title President
Phone (708) 359-5225

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 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.
What type of organization is Grief Recovery Group, Inc?
Grief Recovery Group, Inc is registered in NPPES as a Clinical Social Worker (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-10-04.