Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Margaret C. Keller, APN-CNP

Nurse Practitioner in Glenview, IL · enumerated 2009.

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

National Provider Identifier

1063742963

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mrs. Margaret C. Keller

Credential APN-CNP

Sex Female

Practice address 2180 Pfingsten Rd, Glenview, IL, 60026

Phone (847) 503-1000

Fax (847) 503-1100

Enumeration date Dec 28, 2009

Last updated in NPPES Oct 14, 2019

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 041355500 (IL) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209007799 (IL) Primary

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 Margaret Keller practice?

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

What is the NPI number for Margaret Keller?

The National Provider Identifier (NPI) for Margaret Keller is 1063742963, 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 2019-10-14.