NPI Portal NPI Lookup & Verification

Daniel O'Leary, CSA

Daniel O'Leary is a Surgery Physician provider (Surgery) practicing in Aurora, CO, registered in the NPPES registry with NPI 1508977737 since 2006.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1508977737
Entity type Individual (Type 1)
Name Daniel O'Leary
Credential CSA
Sex Male
Practice address Aurora, CO, 80012
Phone 3036952600
Enumeration date 2006-08-31
Last updated in NPPES 2007-07-08

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208600000X Surgery Physician Primary 91100 CO
Copy-ready billing details
Provider: Daniel O'Leary, CSA
NPI: 1508977737
Taxonomy: 208600000X (Surgery Physician)
Address: Aurora, CO, 80012

Other providers at this practice address

NPI Name Type Specialty Location
1083697783 Paige Archey Individual Emergency Medicine Physician Aurora, CO
1063495778 Neal O'Connor Individual Emergency Medicine Physician Aurora, CO
1497738066 George Sassu Individual Emergency Medicine Physician Aurora, CO
1922081439 Heather Naiman-Crysel Individual Emergency Medicine Physician Aurora, CO
1760467831 Steven Furer Individual Emergency Medicine Physician Aurora, CO
1750366720 Lisa Floyd Individual Emergency Medicine Physician Aurora, CO
1417933789 Frank Lansville Individual Emergency Medicine Physician Aurora, CO
1104802974 James Sutton Individual Emergency Medicine Physician Aurora, CO

Verify this record

Cross-check NPI 1508977737 against the authoritative CMS record: view Daniel O'Leary on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

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.
What specialty is Daniel O'Leary?
Daniel O'Leary is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.