Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Katheryn Aukstik, PA-C

Surgical Physician Assistant in Chicago, IL · enumerated 2007.

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

National Provider Identifier

1851421820

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Registry record

Entity type Individual (Type 1)

Name Mary Katheryn Aukstik

Credential PA-C

Sex Female

Practice address 2211 N Oak Park Ave, Chicago, IL, 60707

Phone (773) 622-5400

Enumeration date Mar 7, 2007

Last updated in NPPES May 30, 2019

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 070014405 (IL) Secondary

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 085003587 (IL) Secondary

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 085003587 (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 Mary Aukstik's NPI record?

Cross-check NPI 1851421820 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1851421820 active?

Yes, as of the latest NPPES snapshot, NPI 1851421820 is active (record last updated 2019-05-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-05-30.