Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Holly Anne Hammerstrom, M.S., CCC/A

Audiologist in Grand Junction, CO · enumerated 2006.

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

National Provider Identifier

1235298415

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Registry record

Entity type Individual (Type 1)

Name Ms. Holly Anne Hammerstrom

Credential M.S., CCC/A

Sex Female

Practice address 425 Patterson Rd, Suite 503, Grand Junction, CO, 81506

Phone (970) 245-2400

Fax (970) 242-9092

Enumeration date Dec 6, 2006

Last updated in NPPES Jan 16, 2009

Taxonomy & licenses

237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License 7936 (MN) Secondary

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 532 (CO) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1235298415 active?

Yes, as of the latest NPPES snapshot, NPI 1235298415 is active (record last updated 2009-01-16).

How do I verify Holly Hammerstrom's NPI record?

Cross-check NPI 1235298415 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 2009-01-16.