NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Geriatric and Primary Care Services S C

Geriatric Medicine (Internal Medicine) Physician in Marion, IL · enumerated 2006 · authorized official Gladstone Tucker, Owner.

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

National Provider Identifier

1174535900

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Geriatric and Primary Care Services S C
Practice address 1606 Castleberry Dr, Marion, IL, 62959
Phone (618) 997-9519
Fax (618) 993-0592
Enumeration date Aug 12, 2006
Last updated in NPPES Jul 25, 2012

Taxonomy & classification

207RG0300X Geriatric Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 036111926 (IL) Primary

Authorized official

Name Gladstone Tucker
Title Owner
Phone (618) 542-6152

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 is the NPI number for Geriatric and Primary Care Services S C?
The NPI for Geriatric and Primary Care Services S C is 1174535900, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Geriatric and Primary Care Services S C?
NPPES lists Gladstone Tucker (Owner) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-25.