Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Heidi Gritzmaker

Case Management Registered Nurse in Adrian, MI · enumerated 2022.

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

National Provider Identifier

1871219592

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Registry record

Entity type Individual (Type 1)

Name Heidi Gritzmaker

Sex Female

Practice address 770 Riverside Ave Ste 104, Adrian, MI, 49221

Phone (734) 222-7160

Enumeration date Oct 14, 2022

Last updated in NPPES Oct 14, 2022

Taxonomy & licenses

163WC0400X Case Management Registered Nurse Nursing Service Providers · License 284236 (OH) 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.

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Frequently asked questions

How do I verify Heidi Gritzmaker's NPI record?

Cross-check NPI 1871219592 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1871219592 active?

Yes, as of the latest NPPES snapshot, NPI 1871219592 is active (record last updated 2022-10-14).

Other providers at this practice address

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Catherine Steele Case Management Registered Nurse · Adrian, MI NPI 1740904317

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-14.