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

Mary Etna R. Haac, MPH, PHD, CD(DONA)

Q: What is the NPI number for Mary Haac?

The National Provider Identifier (NPI) for Mary Haac is 1255095303, a Type 1 (individual) record in the CMS NPPES registry.

Doula in Sharon, VT · enumerated 2021.

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

National Provider Identifier

1255095303

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Registry record

Entity type Individual (Type 1)

Name Mary Etna R. Haac

Credential MPH, PHD, CD(DONA)

Sex Female

Practice address Sharon, VT, 05065

Phone (703) 447-9894

Enumeration date Oct 25, 2021

Last updated in NPPES Oct 25, 2021

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

Taxonomy & licenses

174H00000X Health Educator Other Service Providers Secondary

374J00000X Doula Nursing Service Related Providers · License 10945 (VT) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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 Mary Haac practice?

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

What is the NPI number for Mary Haac?

The National Provider Identifier (NPI) for Mary Haac is 1255095303, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-25.