Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mr. Corey John Grahn, NP-C

Individual provider Nurse Practitioner · NPI 1336474212

Mr. Corey John Grahn, NP-C is a Nurse Practitioner in Ionia, Michigan. Licensed in Michigan. Registered with an NPI since 2009.

Licensed in
MI
In the registry since
2009
What do these letters mean?
NP-C — Nurse Practitioner, Certified
A nurse practitioner certified by the AANP.

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Practice location Address checks out

1342 W Main St
Ionia, MI 48846-1923
Phone: (616) 527-2500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 4704177461 (MI)

Record details

NPI number1336474212
Entity typeIndividual (Type 1)
GenderMale
Credentials NP-C
Sole proprietorNo
NPI enumeratedOctober 9, 2009
Last updated in NPPESFebruary 14, 2025
Certification dateFebruary 14, 2025

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