Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Transition Network Group, LLC

Q: What type of organization is Transition Network Group, LLC?

Transition Network Group, LLC is registered in NPPES as a Contractor (its primary provider taxonomy).

Contractor in San Francisco, CA · enumerated 2018 · authorized official Karen Harold, Principal.

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

National Provider Identifier

1588163448

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Transition Network Group, LLC

Other name <Unavail>

Practice address 2257 Bush St, San Francisco, CA, 94115

Phone (916) 296-6564

Enumeration date Feb 6, 2018

Last updated in NPPES Feb 6, 2018

Taxonomy & classification

171W00000X Contractor Other Service Providers Primary

174H00000X Health Educator Other Service Providers Secondary

405300000X Prevention Professional Other Service Providers Secondary

Authorized official

Name Karen Harold

Title Principal

Phone (916) 271-4634

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 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.

What type of organization is Transition Network Group, LLC?

Transition Network Group, LLC is registered in NPPES as a Contractor (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-02-06.