Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Irene L Belknapp, NP

Nurse Practitioner in Rialto, CA · enumerated 2006.

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

National Provider Identifier

1275556706

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Irene L Belknapp

Credential NP

Sex Female

Practice address 850 E Foothill Blvd, Rialto, CA, 92376

Phone (855) 422-8029

Enumeration date Jul 25, 2006

Last updated in NPPES Apr 30, 2015

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP6678 (CA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
RN452535	Medicaid	CA	-

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

How do I verify Irene Belknapp's NPI record?

Cross-check NPI 1275556706 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1275556706 active?

Yes, as of the latest NPPES snapshot, NPI 1275556706 is active (record last updated 2015-04-30).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-30.