NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ann Marker, RN

Registered Nurse in Claremont, CA · enumerated 2014.

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

National Provider Identifier

1144628405

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ann Marker
Credential RN
Sex Female
Practice address 757 College Way, Claremont, CA, 91711
Phone (909) 621-8222
Enumeration date Dec 18, 2014
Last updated in NPPES Dec 18, 2014

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 703942 (CA) 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 Ann Marker practice?
The practice location on file with NPPES is in Claremont, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ann Marker?
The National Provider Identifier (NPI) for Ann Marker is 1144628405, 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 2014-12-18.