Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Sierra Env & Social Services Inc

Bus in Castro Valley, CA · enumerated 2016 · authorized official Ajati Sankoh, Adminstrative Director.

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

National Provider Identifier

1073060547

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Sierra Env & Social Services Inc

Practice address 3645 Lorena Ave, E, Castro Valley, CA, 94546

Phone (510) 205-1448

Enumeration date Sep 1, 2016

Last updated in NPPES Sep 1, 2016

Taxonomy & classification

347B00000X Bus Transportation Services · License 400016929 (CA) Primary

Authorized official

Name Ajati Sankoh

Title Adminstrative Director

Phone (510) 205-1448

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 type of organization is Sierra Env & Social Services Inc?

Sierra Env & Social Services Inc is registered in NPPES as a Bus (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-09-01.