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Margaret Manor Inc.

Mental Illness Intermediate Care Facility in Chicago, IL · enumerated 2005 · authorized official Peter O'Brien, President.

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

National Provider Identifier

1417942384

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Registry record

Entity type Organization (Type 2)
Legal business name Margaret Manor Inc.
Other name <Unavail>
Practice address 1121 N Orleans St, Chicago, IL, 60610
Phone (312) 943-4300
Fax (312) 943-4304
Enumeration date Sep 15, 2005
Last updated in NPPES Apr 29, 2019

Taxonomy & classification

310500000X Mental Illness Intermediate Care Facility Nursing & Custodial Care Facilities · License 0011239 (IL) Primary

Authorized official

Name Peter O'Brien
Title President
Phone (312) 787-9400

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 the NPI number for Margaret Manor Inc.?
The NPI for Margaret Manor Inc. is 1417942384, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Margaret Manor Inc.?
NPPES lists Peter O'Brien (President) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-04-29.