MR. COREY JOHN GRAHN NP-C
NPI 1336474212
Nurse Practitioner in Ionia, MI

Q: What is Corey Grahn's NPI number?

The NPI number for Corey Grahn is 1336474212. It was assigned to this individual provider in the NPPES registry on October 9, 2009.

Q: What is Corey Grahn's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Corey Grahn was last updated on February 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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 October 09, 2009

1342 W MAIN ST, IONIA, MI 48846(616) 527-2500 Get Directions Write a Review

NPPES record last updated: February 14, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Mr. Corey John Grahn Np-c NPPES

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

MR. COREY JOHN GRAHN NP-C (NPI 1336474212) is an individual nurse practitioner in Ionia, Michigan, licensed in Michigan (4704177461) and active in the NPI registry since October 2009.

NPPES Registry Identity

NPI1336474212

Entity TypeIndividualMale

Primary Taxonomy363L00000X

Provider Legal NameMR. COREY JOHN GRAHNCredential: NP-C

Location Address1342 W MAIN STIonia, MI 48846-1923

Mailing Address1728 W Bluewater HwyIonia, MI 48846-8553 · (616) 527-2500

Phone(616) 527-2500

Sole ProprietorNo

Enumeration DateOctober 9, 2009

Last NPPES UpdateFebruary 14, 2025

NPPES CertifiedFebruary 14, 2025

✔ NPI 1336474212 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in MI · 4704177461

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

1342 W MAIN ST, Ionia, MI 48846

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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 Corey Grahn's NPI number?

The NPI number for Corey Grahn is 1336474212. It was assigned to this individual provider in the NPPES registry on October 9, 2009.

Where is Corey Grahn located?

Corey Grahn practices at 1342 W Main St, Ionia, MI 48846. The listed phone number is (616) 527-2500.

What is Corey Grahn's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

When was this NPI record last updated?

The NPPES record for Corey Grahn was last updated on February 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.