NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mr Cassamajor Holding LLC

Local Education Agency (LEA) in Brooklyn, NY · enumerated 2024 · authorized official Ronald Cassamajor, Manager.

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

National Provider Identifier

1891554747

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Mr Cassamajor Holding LLC
Practice address 2820 Albemarle Rd Apt 1, Brooklyn, NY, 11226
Enumeration date Mar 14, 2024
Last updated in NPPES Mar 14, 2024

Taxonomy & classification

251300000X Local Education Agency (LEA) Agencies Primary

Authorized official

Name Ronald Cassamajor
Title Manager

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 Mr Cassamajor Holding LLC?
NPPES lists Ronald Cassamajor (Manager) as the authorized official for this organization.
What is the NPI number for Mr Cassamajor Holding LLC?
The NPI for Mr Cassamajor Holding LLC is 1891554747, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-14.