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

Mr. Dennis Read Greer, ATC

Q: What is the NPI number for Dennis Greer?

The National Provider Identifier (NPI) for Dennis Greer is 1124227681, a Type 1 (individual) record in the CMS NPPES registry.

Specialist in West Salem, WI · enumerated 2007.

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

National Provider Identifier

1124227681

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Registry record

Entity type Individual (Type 1)

Name Mr. Dennis Read Greer

Credential ATC

Sex Male

Practice address West Salem, WI, 54669

Phone (608) 786-0995

Enumeration date Jul 15, 2007

Last updated in NPPES Jul 15, 2007

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

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 874-039 (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

Where does Dennis Greer practice?

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

What is the NPI number for Dennis Greer?

The National Provider Identifier (NPI) for Dennis Greer is 1124227681, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-15.