Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Loren Castellon, MD

Obstetrics & Gynecology Physician in Santa Monica, CA · enumerated 2020.

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

National Provider Identifier

1114555612

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Registry record

Entity type Individual (Type 1)

Name Loren Castellon

Credential MD

Sex Female

Practice address 1301 20th St Ste 270, Santa Monica, CA, 90404

Phone (310) 828-8585

Enumeration date Mar 30, 2020

Last updated in NPPES Sep 25, 2024

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License A197013 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

What is the NPI number for Loren Castellon?

The National Provider Identifier (NPI) for Loren Castellon is 1114555612, a Type 1 (individual) record in the CMS NPPES registry.

Where does Loren Castellon practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-25.