Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Martin M. O'Bryan

Emergency Medicine Physician in Englewood, CO · enumerated 2005.

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

National Provider Identifier

1821074949

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Registry record

Entity type Individual (Type 1)

Name Martin M. O'Bryan

Sex Male

Practice address 501 E Hampden Ave, Englewood, CO, 80113

Phone (303) 788-6911

Fax (303) 306-7753

Enumeration date Dec 20, 2005

Last updated in NPPES Jul 18, 2015

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 37734 (CO) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License DR.0037734 (CO) Primary

Other identifiers

Identifier	Type	State	Issuer
04989881	Medicaid	CO	-
930084883	Other	CO	RAILROAD MEDICARE

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 1821074949 active?

Yes, as of the latest NPPES snapshot, NPI 1821074949 is active (record last updated 2015-07-18).

How do I verify Martin O'Bryan's NPI record?

Cross-check NPI 1821074949 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 2015-07-18.