Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Allison Jean Simek, APN, FNP-C

Family Nurse Practitioner in Plainfield, IL · enumerated 2021.

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

National Provider Identifier

1275206583

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Registry record

Entity type Individual (Type 1)

Name Allison Jean Simek

Credential APN, FNP-C

Sex Female

Practice address 24600 W 127th St Ste 335, Plainfield, IL, 60585

Phone (815) 676-6716

Enumeration date Aug 1, 2021

Last updated in NPPES Aug 1, 2021

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209.022040 (IL) Primary

Other identifiers

Identifier	Type	State	Issuer
209.022040	Other	IL	ADVANCED PRACTICE REGISTERED NURSE

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 1275206583 active?

Yes, as of the latest NPPES snapshot, NPI 1275206583 is active (record last updated 2021-08-01).

How do I verify Allison Simek's NPI record?

Cross-check NPI 1275206583 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Mikaela Shapiro Physician Assistant · Plainfield, IL NPI 1497587414

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-01.