Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karen Ann Kowalczyk, APN-CNP

Nurse Practitioner in Addison, IL · enumerated 2009.

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

National Provider Identifier

1316189343

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Karen Ann Kowalczyk

Credential APN-CNP

Sex Female

Practice address 303 W Lake St Ste 200, Addison, IL, 60101

Phone (331) 221-9001

Fax (331) 221-3971

Enumeration date Apr 6, 2009

Last updated in NPPES Apr 9, 2026

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209007542 (IL) Primary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209.007542 (IL) Secondary

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

Is NPI 1316189343 active?

Yes, as of the latest NPPES snapshot, NPI 1316189343 is active (record last updated 2026-04-09).

How do I verify Karen Kowalczyk's NPI record?

Cross-check NPI 1316189343 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Emmanuel Linchangco Internal Medicine Physician · Addison, IL NPI 1922095546 Vineet Singla Family Medicine Physician · Addison, IL NPI 1740228840 Laura Boyd Family Medicine Physician · Addison, IL NPI 1427251503 Ricardo Martinez Family Medicine Physician · Addison, IL NPI 1033307863 Anastasia Munoz Family Medicine Physician · Addison, IL NPI 1053766840 Kezia Philips Nurse Practitioner · Addison, IL NPI 1659854198 Joanna Rios Nurse Practitioner · Addison, IL NPI 1720547383 Agim Jusufi Internal Medicine Physician · Addison, IL NPI 1366001232

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-09.