Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Brian P Maddox, AA

Anesthesiologist Assistant in Greenwood Village, CO · enumerated 2018.

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

National Provider Identifier

1780177188

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Brian P Maddox

Credential AA

Sex Male

Practice address 8000 E Maplewood Ave Ste 200, Greenwood Village, CO, 80111

Phone (303) 438-3999

Fax (720) 439-9500

Enumeration date Jun 11, 2018

Last updated in NPPES Apr 19, 2023

Taxonomy & licenses

367H00000X Anesthesiologist Assistant Physician Assistants & Advanced Practice Nursing Providers Primary

Other identifiers

Identifier	Type	State	Issuer
2018019394	Other	MO	MO LICENSE

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 Brian Maddox?

Brian Maddox is registered in NPPES with the primary taxonomy of Anesthesiologist Assistant. 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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-19.