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

Monica Jean Greis

Q: What is the NPI number for Monica Greis?

The National Provider Identifier (NPI) for Monica Greis is 1215424726, a Type 1 (individual) record in the CMS NPPES registry.

Speech-Language Pathologist in Hartford, WI · enumerated 2018.

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

National Provider Identifier

1215424726

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Registry record

Entity type Individual (Type 1)

Name Monica Jean Greis

Sex Female

Practice address Hartford, WI, 53027

Phone (414) 745-1436

Enumeration date Apr 19, 2018

Last updated in NPPES Apr 19, 2018

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

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 4620-154 (WI) 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 Monica Greis?

The National Provider Identifier (NPI) for Monica Greis is 1215424726, a Type 1 (individual) record in the CMS NPPES registry.

Where does Monica Greis practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-04-19.