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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.

CATHLEEN M CREGIER APN
NPI 1245227271
Internal Medicine in Naperville, IL

Active since October 04, 2005
120 SPALDING DR, SUITE 310, NAPERVILLE, IL 60540(630) 527-7780(630) 527-7777 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Cathleen M Cregier Apn NPPES

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

CATHLEEN M CREGIER APN (NPI 1245227271) is an individual internal medicine provider in Naperville, Illinois and active in the NPI registry since October 2005.

NPPES Registry Identity

NPI1245227271
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameCATHLEEN M CREGIERCredential: APN
Location Address120 SPALDING DR, SUITE 310Naperville, IL 60540-6508
Mailing Address120 Spalding Dr, Suite 310Naperville, IL 60540-6508 · (630) 527-7780 · Fax (630) 527-7777
Phone(630) 527-7780
Fax(630) 527-7777
Sole ProprietorNo
Enumeration DateOctober 4, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1245227271 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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.
120 SPALDING DR, Naperville, IL 60540
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Other Providers at the Same Location NPPES 20

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

JAMES R DAVIS MD
Specialist
120 SPALDING DR, SUITE 307
NAPERVILLE, IL 60540
Dupage County (630) 355-1102
SHEILA TREFTZ APN
Nurse Practitioner (Acute Care)
120 SPALDING DR, SUITE 401
NAPERVILLE, IL 60540
Dupage County (630) 416-4501
JOSEPH KASH MD
Internal Medicine (Hematology & Oncology)
120 SPALDING DR, SUITE 111
NAPERVILLE, IL 60540
Dupage County (630) 527-3788
MRS. WENDY ANN PAWELSKI LCPC,CADC
Counselor (Professional)
120 SPALDING DR, MOB II SUITE 408
NAPERVILLE, IL 60540
Dupage County (630) 527-5484
EDWARD HEALTH VENTURES
Psychiatry & Neurology (Neurology)
120 SPALDING DR, STE 207
NAPERVILLE, IL 60540
Dupage County (630) 527-7730
KRISTIN R. WATKINS APN-CNP
Nurse Practitioner
120 SPALDING DR
NAPERVILLE, IL 60540
Dupage County (630) 369-7700
JAMES W WIELGOLEWSKI MD
Surgery
120 SPALDING DR, SUITE 100
NAPERVILLE, IL 60540
Dupage County (630) 961-0423
HASSAN PERVEZ M.D.
Internal Medicine (Hematology & Oncology)
120 SPALDING DR, SUITE 111
NAPERVILLE, IL 60540
Dupage County (630) 527-3788

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 Cathleen Cregier's NPI number?

The NPI number for Cathleen Cregier is 1245227271. It was assigned to this individual provider in the NPPES registry on October 4, 2005.

Where is Cathleen Cregier located?

Cathleen Cregier practices at 120 Spalding Dr Suite 310, Naperville, IL 60540. The listed phone number is (630) 527-7780.

What is Cathleen Cregier's specialty?

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

When was this NPI record last updated?

The NPPES record for Cathleen Cregier was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 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.