NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Karen Ann Giglio, RN

Registered Nurse in Centennial, CO · enumerated 2017.

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

National Provider Identifier

1356850663

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mrs. Karen Ann Giglio
Credential RN
Sex Female
Practice address 5555 E Arapahoe Rd, Centennial, CO, 80122
Phone (303) 338-4545
Enumeration date Sep 29, 2017
Last updated in NPPES Sep 29, 2017

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 183898 (CO) Primary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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 Karen Giglio practice?
The practice location on file with NPPES is in Centennial, CO. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Karen Giglio?
The National Provider Identifier (NPI) for Karen Giglio is 1356850663, 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 2017-09-29.