What is Holly Hammerstrom's NPI number?

Holly Hammerstrom's National Provider Identifier (NPI) is 1235298415, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Holly Hammerstrom's specialty?

Holly Hammerstrom is listed in the NPPES registry with a primary specialty of Audiologist (Speech, Language and Hearing Service Providers).

Where is Holly Hammerstrom located?

Holly Hammerstrom's practice location on file with NPPES is 425 Patterson Rd, Grand Junction, CO 81506.

What is Holly Hammerstrom's phone number?

The practice phone number listed in the NPPES registry for Holly Hammerstrom is (970) 245-2400.

Is Holly Hammerstrom's NPI active?

Yes — Holly Hammerstrom's NPI (1235298415) is active in the NPPES registry as of the last update on 2009-01-16.

IndividualActive

Holly Hammerstrom, M.S., CCC/A

NPI 1235298415 · Audiologist · Grand Junction, CO

Holly Hammerstrom, M.S., CCC/A is a Audiologist provider in Grand Junction, CO (NPI 1235298415).

Provider details

NPI number: 1235298415
Entity type: Individual
Primary specialty: AudiologistSpeech, Language and Hearing Service Providers
Credential: M.S., CCC/A
Sex: Female
Sole proprietor: No
License: 7936 (MN)

Practice location

425 Patterson Rd

Suite 503

Grand Junction, CO 81506

Phone: (970) 245-2400

Fax: (970) 242-9092

Approximate (ZIP-level) locationGet directions

More CO providers

Mailing address

425 Patterson Rd

Grand Junction, CO 81506

Specialties & taxonomies

AudiologistPrimary231H00000XLicense 532 (CO)
Speech, Language and Hearing Service Providers
Audiologist-Hearing Aid Fitter237600000XLicense 7936 (MN)
Speech, Language and Hearing Service Providers

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
19 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Enumerated: 2006-12-06
Last updated: 2009-01-16

Frequently asked questions

What is Holly Hammerstrom's NPI number?: Holly Hammerstrom's National Provider Identifier (NPI) is 1235298415, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Holly Hammerstrom's specialty?: Holly Hammerstrom is listed in the NPPES registry with a primary specialty of Audiologist (Speech, Language and Hearing Service Providers).
Where is Holly Hammerstrom located?: Holly Hammerstrom's practice location on file with NPPES is 425 Patterson Rd, Grand Junction, CO 81506.
What is Holly Hammerstrom's phone number?: The practice phone number listed in the NPPES registry for Holly Hammerstrom is (970) 245-2400.
Is Holly Hammerstrom's NPI active?: Yes — Holly Hammerstrom's NPI (1235298415) is active in the NPPES registry as of the last update on 2009-01-16.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions