NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Walgreen Co

Pharmacy in Brooklyn, NY · enumerated 2017 · authorized official Alan Nielsen, Asst Treasurer.

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

National Provider Identifier

1033633102

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Walgreen Co
Other name <Unavail>
Parent organization Walgreens Boots Alliance Inc
Practice address 5224 5th Ave, Brooklyn, NY, 11220
Phone (718) 765-1833
Fax (718) 765-0267
Enumeration date Aug 1, 2017
Last updated in NPPES Sep 25, 2017

Taxonomy & classification

332B00000X Durable Medical Equipment & Medical Supplies Suppliers Secondary
333600000X Pharmacy Suppliers Primary
3336C0003X Community/Retail Pharmacy Suppliers Secondary

Authorized official

Name Alan Nielsen
Title Asst Treasurer
Phone (847) 315-3523

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 Walgreen Co?
The NPI for Walgreen Co is 1033633102, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Walgreen Co?
NPPES lists Alan Nielsen (Asst Treasurer) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-09-25.