Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sierra Morgan Flynn, AMFT

Q: What is the NPI number for Sierra Flynn?

The National Provider Identifier (NPI) for Sierra Flynn is 1821681081, a Type 1 (individual) record in the CMS NPPES registry.

Marriage & Family Therapist in Trabuco Canyon, CA · enumerated 2021.

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

National Provider Identifier

1821681081

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Registry record

Entity type Individual (Type 1)

Name Sierra Morgan Flynn

Credential AMFT

Sex Female

Practice address 20331 Flanagan Rd., Trabuco Canyon, CA, 92679

Phone (818) 582-8832

Enumeration date Feb 18, 2021

Last updated in NPPES Dec 27, 2022

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 136734 (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 Sierra Flynn practice?

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

What is the NPI number for Sierra Flynn?

The National Provider Identifier (NPI) for Sierra Flynn is 1821681081, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-12-27.