Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Collective Illume, A Marriage and Family Therapy Corporation

Marriage & Family Therapist in Sonoma, CA · enumerated 2025 · authorized official Margaret Oh, Owner.

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

National Provider Identifier

1801782651

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Registry record

Entity type Organization (Type 2)

Legal business name Collective Illume, A Marriage and Family Therapy Corporation

Practice address 573 Este Madera Dr, Sonoma, CA, 95476

Phone (858) 247-2580

Enumeration date Jun 17, 2025

Last updated in NPPES Jun 17, 2025

Taxonomy & classification

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers Primary

Authorized official

Name Margaret Oh

Title Owner

Phone (858) 247-2580

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

Who is the authorized official for Collective Illume, A Marriage and Family Therapy Corporation?

NPPES lists Margaret Oh (Owner) as the authorized official for this organization.

What is the NPI number for Collective Illume, A Marriage and Family Therapy Corporation?

The NPI for Collective Illume, A Marriage and Family Therapy Corporation is 1801782651, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-17.