NPI Portal NPI Lookup & Verification

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

Ms. Tammy Sunvold

Registered Nurse First Assistant in Scottsdale, AZ · enumerated 2015 · practices at Arizona Breastnet, LLC.

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

National Provider Identifier

1235524463

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Registry record

Entity type Individual (Type 1)
Name Ms. Tammy Sunvold
Sex Female
Practice address Scottsdale, AZ, 85260
Enumeration date Apr 3, 2015
Last updated in NPPES Apr 3, 2015

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

Taxonomy & licenses

163WR0006X Registered Nurse First Assistant Nursing Service Providers · License RN0091582 (AZ) 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

Is NPI 1235524463 active?
Yes, as of the latest NPPES snapshot, NPI 1235524463 is active (record last updated 2015-04-03).
How do I verify Tammy Sunvold's NPI record?
Cross-check NPI 1235524463 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-03.