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

Marcia A. Dion, MS

Audiologist-Hearing Aid Fitter in Montpelier, VT · enumerated 2006.

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

National Provider Identifier

1295846590

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Registry record

Entity type Individual (Type 1)

Name Marcia A. Dion

Credential MS

Sex Female

Practice address Montpelier, VT, 05602

Phone (802) 229-5868

Fax (802) 229-0630

Enumeration date Aug 31, 2006

Last updated in NPPES May 2, 2019

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

Taxonomy & licenses

237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers Primary

Other identifiers

Identifier	Type	State	Issuer
2922109	Other	VT	CIGNA PROVIDER ID
29385	Other	VT	BC/BS PROVIDER ID
1005883	Medicaid	VT	-

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 specialty is Marcia Dion?

Marcia Dion is registered in NPPES with the primary taxonomy of Audiologist-Hearing Aid Fitter. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-05-02.