Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gregory N Day DDS Oral Surgury PC

Oral and Maxillofacial Surgery (Dentist) in Pueblo, CO · enumerated 2008 · authorized official Gregory Day, Owner/Oral Surgeon.

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

National Provider Identifier

1528237641

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Registry record

Entity type Organization (Type 2)

Legal business name Gregory N Day DDS Oral Surgury PC

Practice address 3902 Sandlewood Ln, Suite 110, Pueblo, CO, 81005

Phone (719) 561-2440

Fax (719) 561-0612

Enumeration date Feb 22, 2008

Last updated in NPPES Feb 29, 2008

Taxonomy & classification

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License 6563 (CO) Primary

Authorized official

Name Gregory Day

Title Owner/Oral Surgeon

Phone (719) 561-2440

Other identifiers

Identifier	Type	State	Issuer
08328544	Medicaid	CO	-

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 current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-02-29. Verify at npiregistry.cms.hhs.gov.

Where is Gregory N Day DDS Oral Surgury PC located?

The practice location on file with NPPES is in Pueblo, CO.

Providers at this address

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Gregory Day Oral and Maxillofacial Surgery (Dentist) · Pueblo, CO NPI 1780749176

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-29.