Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

James G Horgan, M.D.

Pediatric Radiology Physician in Denver, CO · enumerated 2006.

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

National Provider Identifier

1558372391

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name James G Horgan

Credential M.D.

Sex Male

Practice address Denver, CO, 80204

Phone (303) 914-8800

Fax (303) 716-3777

Enumeration date Aug 10, 2006

Last updated in NPPES Mar 5, 2008

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

Taxonomy & licenses

2085P0229X Pediatric Radiology Physician Allopathic & Osteopathic Physicians · License 27860 (CO) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
01278605	Medicaid	CO	-

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 1558372391 active?

Yes, as of the latest NPPES snapshot, NPI 1558372391 is active (record last updated 2008-03-05).

How do I verify James Horgan's NPI record?

Cross-check NPI 1558372391 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-05.