Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Heather Page Duffey, CNM

Advanced Practice Midwife in Idaho Falls, ID · enumerated 2012.

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

National Provider Identifier

1578839221

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Registry record

Entity type Individual (Type 1)

Name Heather Page Duffey

Credential CNM

Sex Female

Practice address 3450 Potomac Way, Idaho Falls, ID, 83404

Phone (208) 557-2900

Enumeration date Mar 27, 2012

Last updated in NPPES Jul 13, 2023

Taxonomy & licenses

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License APRN11020183 (FL) Secondary

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License CNM-87A (ID) Primary

CNM · Certified Nurse Midwife: An advanced practice nurse specializing in pregnancy, childbirth, and reproductive care. About the CNM 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.

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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 Heather Duffey?

Heather Duffey is registered in NPPES with the primary taxonomy of Advanced Practice Midwife. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-13.