NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Geriatric Professional Services Sc

Internal Medicine Physician in Naperville, IL · enumerated 2011 · authorized official Karim Tourk, President.

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

National Provider Identifier

1811266315

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Geriatric Professional Services Sc
Practice address 1755 Park St Ste 200, Naperville, IL, 60563
Phone (800) 353-4980
Fax (800) 356-2390
Enumeration date Dec 29, 2011
Last updated in NPPES Jul 7, 2025

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036102125 (IL) Primary

Authorized official

Name Karim Tourk
Title President
Phone (815) 671-2303

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

Who is the authorized official for Geriatric Professional Services Sc?
NPPES lists Karim Tourk (President) as the authorized official for this organization.
What is the NPI number for Geriatric Professional Services Sc?
The NPI for Geriatric Professional Services Sc is 1811266315, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

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