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GERIATRIC PROFESSIONAL SERVICES SC
NPI 1811266315
Internal Medicine in Naperville, IL

Active since December 29, 2011
1755 PARK ST STE 200, NAPERVILLE, IL 60563(800) 353-4980(800) 356-2390 Get Directions Write a Review

NPPES record last updated: July 7, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Geriatric Professional Services Sc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GERIATRIC PROFESSIONAL SERVICES SC (NPI 1811266315) is a healthcare organization registered as an internal medicine in Naperville, Illinois and active in the NPI registry since December 2011. The organization lists Karim Tourk, President, as its authorized official.

NPPES Registry Identity

NPI1811266315
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameGERIATRIC PROFESSIONAL SERVICES SC
Location Address1755 PARK ST STE 200Naperville, IL 60563-8404
Mailing Address1755 Park St Ste 200Naperville, IL 60563-8404 · (800) 353-4980 · Fax (800) 356-2390
Phone(800) 353-4980
Fax(800) 356-2390
Organization SubpartNo
Authorized OfficialKarim TourkPresident · (815) 671-2303
Enumeration DateDecember 29, 2011
Last NPPES UpdateJuly 7, 2025
NPPES CertifiedJuly 7, 2025
✔ NPI 1811266315 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036102125
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1755 PARK ST STE 200, Naperville, IL 60563
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Geriatric Professional Services Sc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Geriatric Professional Services Sc, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Karim Tourk, M.D.
Internal Medicine
NPI 1679569347
1755 PARK ST STE 200
Naperville, IL 60563
(800) 353-4980
✔ PECOS✔ Accepts MedicareSame address
Amanda Jenkins, APN
Nurse Practitioner
NPI 1801341136
310 N HAMMES AVE STE 202
Joliet, IL 60435
(815) 741-2285
✔ PECOS✔ Accepts Medicare19 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Geriatric Professional Services Sc's NPI number?

The NPI number for Geriatric Professional Services Sc is 1811266315. It was assigned to this organization in the NPPES registry on December 29, 2011.

Where is Geriatric Professional Services Sc located?

Geriatric Professional Services Sc is located at 1755 Park St Ste 200, Naperville, IL 60563. The listed phone number is (800) 353-4980.

What is Geriatric Professional Services Sc's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Geriatric Professional Services Sc enrolled in Medicare?

Yes. Geriatric Professional Services Sc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Geriatric Professional Services Sc?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Geriatric Professional Services Sc, in Internal Medicine and Nurse Practitioner. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Geriatric Professional Services Sc accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Geriatric Professional Services Sc as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Geriatric Professional Services Sc was last updated on July 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.