Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Stacey Diemer

Case Manager/Care Coordinator in Grand Rapids, MI · enumerated 2016.

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

National Provider Identifier

1336592534

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Registry record

Entity type Individual (Type 1)

Name Stacey Diemer

Sex Female

Practice address Grand Rapids, MI, 49548

Phone (616) 248-5156

Enumeration date Jul 22, 2016

Last updated in NPPES Jul 22, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

171M00000X Case Manager/Care Coordinator Other Service Providers 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

What is the NPI number for Stacey Diemer?

The National Provider Identifier (NPI) for Stacey Diemer is 1336592534, a Type 1 (individual) record in the CMS NPPES registry.

Where does Stacey Diemer practice?

The practice location on file with NPPES is in Grand Rapids, MI. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-07-22.