Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katlyn Arrivillaga

Family Nurse Practitioner in Porter Ranch, CA · enumerated 2022.

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

National Provider Identifier

1831847441

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Katlyn Arrivillaga

Sex Female

Practice address 20220 Sorrento Ln Apt 311, Porter Ranch, CA, 91326

Phone (260) 385-5954

Enumeration date Mar 13, 2022

Last updated in NPPES Aug 31, 2023

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 28224906A (IN) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP5026587 (CA) 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 Katlyn Arrivillaga practice?

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

What is the NPI number for Katlyn Arrivillaga?

The National Provider Identifier (NPI) for Katlyn Arrivillaga is 1831847441, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-31.