Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Heidi H Welnak, OD

Optometrist in Manchester Center, VT · enumerated 2020 · practices at Advanced Eyecare, PC.

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

National Provider Identifier

1609484179

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Registry record

Entity type Individual (Type 1)

Name Heidi H Welnak

Credential OD

Sex Female

Practice address 5222 Main St, Manchester Center, VT, 05255

Phone (802) 366-8050

Fax (802) 366-8045

Enumeration date Jul 21, 2020

Last updated in NPPES Oct 22, 2020

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 030.0133931 (VT) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
030.0133931	Other	VT	VT LICENSE

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Heidi Welnak?

Heidi Welnak is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Advanced Eyecare, PC Eyewear Supplier · Manchester Center, VT NPI 1386832756

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-22.