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Guidestar Eldercare - Il Sc

Internal Medicine Physician in Schaumburg, IL · enumerated 2019 · authorized official Steven Posar, Ceo.

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

National Provider Identifier

1417591074

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Registry record

Entity type Organization (Type 2)
Legal business name Guidestar Eldercare - Il Sc
Other name <Unavail>
Practice address 1821 Walden Office Sq Ste 400, Schaumburg, IL, 60173
Phone (574) 546-1900
Fax (574) 546-1999
Enumeration date Nov 6, 2019
Last updated in NPPES Apr 24, 2025

Taxonomy & classification

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Secondary
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Secondary
363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Secondary
363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Secondary
363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Secondary

Authorized official

Name Steven Posar
Title Ceo
Phone (574) 546-1900

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

Where is Guidestar Eldercare - Il Sc located?
The practice location on file with NPPES is in Schaumburg, IL.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2025-04-24. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-24.