Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Nicholas D Kortan, D.O.

Rheumatology Physician in Denver, CO · enumerated 2007.

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

National Provider Identifier

1407052483

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Nicholas D Kortan

Credential D.O.

Sex Male

Practice address 777 Bannock St # Mc3240, Denver, CO, 80204

Phone (303) 436-6000

Enumeration date Jun 26, 2007

Last updated in NPPES Aug 1, 2023

Taxonomy & licenses

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License 646 (NE) Secondary

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License DR.0068078 (CO) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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

Where does Nicholas Kortan practice?

The practice location on file with NPPES is in Denver, CO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Nicholas Kortan?

The National Provider Identifier (NPI) for Nicholas Kortan is 1407052483, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-01.