Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Heather Estby

Diagnostic Radiology Physician in Anchorage, AK · enumerated 2017.

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

National Provider Identifier

1861924201

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Registry record

Entity type Individual (Type 1)

Name Heather Estby

Sex Female

Practice address 4315 Diplomacy Dr, Anchorage, AK, 99508

Phone (855) 482-4382

Enumeration date Apr 3, 2017

Last updated in NPPES Aug 8, 2023

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 205878 (AK) Primary

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

Where does Heather Estby practice?

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

What is the NPI number for Heather Estby?

The National Provider Identifier (NPI) for Heather Estby is 1861924201, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-08.