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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

FUNCTIONAL IMMUNOLOGY, PLLC
NPI 1508715491
General Practice in North Aurora, IL

Active since January 24, 2026
838 COLUMBIA CIR, NORTH AURORA, IL 60542(630) 448-0545(630) 326-8652 Get Directions Write a Review

NPPES record last updated: August 12, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Aug 12, 2026, Jan 24, 2026 (2 updates tracked since 2026).

About Functional Immunology, Pllc NPPES

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

FUNCTIONAL IMMUNOLOGY, PLLC (NPI 1508715491), doing business as The Young Clinic, is a healthcare organization registered as a general practice in North Aurora, Illinois and active in the NPI registry since January 2026. The organization lists Stanley Mathew, Owner, as its authorized official.

NPPES Registry Identity

NPI1508715491
Entity TypeOrganization
Primary Taxonomy208D00000X
Legal Business NameFUNCTIONAL IMMUNOLOGY, PLLC
Location Address838 COLUMBIA CIRNorth Aurora, IL 60542-1812
Mailing Address855 A Ave Ne Ste 105Cedar Rapids, IA 52402-5060 · (646) 531-1151 · Fax (319) 369-8251
Phone(630) 448-0545
Fax(630) 326-8652
Organization SubpartNo
Authorized OfficialStanley MathewOwner · (646) 531-1151
Enumeration DateJanuary 24, 2026
Last NPPES UpdateAugust 12, 20262 updates tracked since enumeration
NPPES CertifiedAugust 12, 2026
✔ NPI 1508715491 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians
Taxonomy Code208D00000X
Definition
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee
838 COLUMBIA CIR, North Aurora, IL 60542
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Other Names 2

Doing Business AsThe Young Clinic
Doing Business AsThe Young Clinic Functional Medicine

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HALEY YOUNG PA-C
Physician Assistant
838 COLUMBIA CIR
NORTH AURORA, IL 60542
Kane County (630) 448-0545

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 Functional Immunology, PLLC's NPI number?

The NPI number for Functional Immunology, PLLC is 1508715491. It was assigned to this organization in the NPPES registry on January 24, 2026. The provider is doing business as The Young Clinic and The Young Clinic Functional Medicine.

Where is Functional Immunology, PLLC located?

Functional Immunology, PLLC is located at 838 Columbia Cir, North Aurora, IL 60542. The listed phone number is (630) 448-0545.

What is Functional Immunology, PLLC's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

When was this NPI record last updated?

The NPPES record for Functional Immunology, PLLC was last updated on August 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 days 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.