Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Trisha Lynn Greff, CNA

Q: What is the NPI number for Trisha Greff?

The National Provider Identifier (NPI) for Trisha Greff is 1922866516, a Type 1 (individual) record in the CMS NPPES registry.

Nurse's Aide in Box Elder, MT · enumerated 2024.

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

National Provider Identifier

1922866516

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Registry record

Entity type Individual (Type 1)

Name Mrs. Trisha Lynn Greff

Credential CNA

Sex Female

Practice address 6850 Upper Box Elder Rd, Box Elder, MT, 59521

Phone (406) 395-4486

Enumeration date Mar 8, 2024

Last updated in NPPES Mar 8, 2024

Taxonomy & licenses

376K00000X Nurse's Aide Nursing Service Related Providers · License 324816 (MT) 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 Trisha Greff?

The National Provider Identifier (NPI) for Trisha Greff is 1922866516, a Type 1 (individual) record in the CMS NPPES registry.

Where does Trisha Greff practice?

The practice location on file with NPPES is in Box Elder, MT. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-08.