Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

California Mammha, A Licensed Clinical Social Worker PC

Clinical Social Worker in Napa, CA · enumerated 2025 · authorized official Jennifer Shully, Owner.

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

National Provider Identifier

1669344636

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name California Mammha, A Licensed Clinical Social Worker PC

Practice address 1248 Hayes St, Napa, CA, 94559

Phone (831) 920-7907

Fax (855) 682-0606

Enumeration date Sep 19, 2025

Last updated in NPPES Sep 19, 2025

Taxonomy & classification

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers Primary

Authorized official

Name Jennifer Shully

Title Owner

Phone (707) 345-6565

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 California Mammha, A Licensed Clinical Social Worker PC?

The NPI for California Mammha, A Licensed Clinical Social Worker PC is 1669344636, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for California Mammha, A Licensed Clinical Social Worker PC?

NPPES lists Jennifer Shully (Owner) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-19.