Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lance C Guyett, ACNP

Q: What is the NPI number for Lance Guyett?

The National Provider Identifier (NPI) for Lance Guyett is 1598748774, a Type 1 (individual) record in the CMS NPPES registry.

Nurse Practitioner in Williamsville, NY · enumerated 2005.

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

National Provider Identifier

1598748774

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Registry record

Entity type Individual (Type 1)

Name Lance C Guyett

Credential ACNP

Sex Male

Practice address 6460 Main St, Williamsville, NY, 14221

Phone (716) 634-5100

Fax (716) 634-5134

Enumeration date Nov 22, 2005

Last updated in NPPES Apr 7, 2008

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F430229 (NY) Primary

Other identifiers

Identifier	Type	State	Issuer
00027207101	Other	NY	UNIVERA
000560947001	Other	NY	BLUE CORSS COMM BLUE
9512945	Other	NY	INDEP HEALTH

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 Lance Guyett?

The National Provider Identifier (NPI) for Lance Guyett is 1598748774, a Type 1 (individual) record in the CMS NPPES registry.

Where does Lance Guyett practice?

The practice location on file with NPPES is in Williamsville, NY. 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 2008-04-07.