Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Aleksandra Wiak, REGISTERED DIETITIAN

Registered Dietitian in Chicago, IL · enumerated 2015.

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

National Provider Identifier

1346630514

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Aleksandra Wiak

Credential REGISTERED DIETITIAN

Sex Female

Practice address Chicago, IL, 60621

Phone (773) 651-3629

Fax (773) 322-1599

Enumeration date Jan 27, 2015

Last updated in NPPES Jan 27, 2015

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 164006284 (IL) Primary

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

How do I verify Aleksandra Wiak's NPI record?

Cross-check NPI 1346630514 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1346630514 active?

Yes, as of the latest NPPES snapshot, NPI 1346630514 is active (record last updated 2015-01-27).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-01-27.