Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Aaron M Casselman, D.C.

Chiropractor in Highlands Ranch, CO · enumerated 2006.

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

National Provider Identifier

1275587164

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Registry record

Entity type Individual (Type 1)

Name Dr. Aaron M Casselman

Credential D.C.

Sex Male

Practice address 4185 E Wildcat Reserve Pkwy, Suite 220, Highlands Ranch, CO, 80126

Phone (303) 683-5060

Enumeration date May 22, 2006

Last updated in NPPES Mar 4, 2008

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 7668 (AZ) Secondary

111N00000X Chiropractor Chiropractic Providers · License 5899 (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 Aaron Casselman?

Aaron Casselman 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 2008-03-04.