Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Brooke Day, D.C.

Chiropractor in Boulder, CO · enumerated 2013.

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

National Provider Identifier

1417394008

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Registry record

Entity type Individual (Type 1)

Name Dr. Brooke Day

Credential D.C.

Sex Female

Practice address 4150 Darley Ave, Suite 6, Boulder, CO, 80305

Phone (303) 499-5000

Fax (303) 499-4962

Enumeration date May 23, 2013

Last updated in NPPES May 12, 2015

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 38MC00708700 (NJ) Secondary

111N00000X Chiropractor Chiropractic Providers · License CHR.0007278 (CO) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Brooke Day?

Brooke Day is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-12.