Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Greg L Hall, M.S., CCC-A

Q: What is the NPI number for Greg Hall?

The National Provider Identifier (NPI) for Greg Hall is 1790937639, a Type 1 (individual) record in the CMS NPPES registry.

Audiologist-Hearing Aid Fitter in Denver, CO · enumerated 2008.

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

National Provider Identifier

1790937639

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Registry record

Entity type Individual (Type 1)

Name Mr. Greg L Hall

Credential M.S., CCC-A

Sex Male

Practice address 3030 E 2nd Ave Ste 104, Denver, CO, 80206

Phone (303) 377-1217

Enumeration date Oct 22, 2008

Last updated in NPPES Oct 22, 2008

Taxonomy & licenses

237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License 132 (CO) 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 Greg Hall practice?

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

What is the NPI number for Greg Hall?

The National Provider Identifier (NPI) for Greg Hall is 1790937639, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-22.