Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

HANNAH LYNN ONNEN
NPI 1255144168
Counselor - Mental Health in Frankfort, IL

Q: What is Hannah Onnen's NPI number?

The NPI number for Hannah Onnen is 1255144168. It was assigned to this individual provider in the NPPES registry on January 27, 2025.

Q: What is Hannah Onnen's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Q: When was this NPI record last updated?

The NPPES record for Hannah Onnen was last updated on August 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.

Active since January 27, 2025

20550 N LAGRANGE RD STE 115&210, FRANKFORT, IL 60423(708) 614-6860 Get Directions Write a Review

NPPES record last updated: August 17, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

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About Hannah Lynn Onnen NPPES

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

HANNAH LYNN ONNEN (NPI 1255144168) is an individual mental health provider in Frankfort, Illinois and active in the NPI registry since January 2025.

NPPES Registry Identity

NPI1255144168

Entity TypeIndividualFemale

Primary Taxonomy101YM0800X

Provider Legal NameHANNAH LYNN ONNEN

Location Address20550 N LAGRANGE RD STE 115&210Frankfort, IL 60423-1397

Mailing Address1406 Cook BlvdBradley, IL 60915-2629 · (815) 662-7221

Phone(708) 614-6860

Sole ProprietorNo

Enumeration DateJanuary 27, 2025

Last NPPES UpdateAugust 17, 2026

NPPES CertifiedAugust 17, 2026

✔ NPI 1255144168 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers

Taxonomy Code101YM0800X

20550 N LAGRANGE RD STE 115&210, Frankfort, IL 60423

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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 Hannah Onnen's NPI number?

The NPI number for Hannah Onnen is 1255144168. It was assigned to this individual provider in the NPPES registry on January 27, 2025.

Where is Hannah Onnen located?

Hannah Onnen practices at 20550 N Lagrange Rd Ste 115&210, Frankfort, IL 60423. The listed phone number is (708) 614-6860.

What is Hannah Onnen's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Hannah Onnen was last updated on August 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.