NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Glenn W. Callahan, D.P.M.

Durable Medical Equipment & Medical Supplies in Yonkers, NY · enumerated 2007 · authorized official Glenn Callahan, Doctor.

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

National Provider Identifier

1912107244

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Glenn W. Callahan, D.P.M.
Other name <Unavail>
Practice address 626 Mclean Ave, Yonkers, NY, 10705
Phone (914) 423-8808
Fax (914) 423-8810
Enumeration date Jul 24, 2007
Last updated in NPPES May 24, 2010

Taxonomy & classification

332B00000X Durable Medical Equipment & Medical Supplies Suppliers · License N0038981 (NY) Primary

Authorized official

Name Glenn Callahan
Title Doctor
Phone (914) 423-8808

Other identifiers

Identifier Type State Issuer
009045723 Medicaid NY -
WS1077 Other NY OXFORD
P51252 Other NY EMPIRE BLUE CROSS BLUE SH

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 Glenn W. Callahan, D.P.M.?
Glenn W. Callahan, D.P.M. is registered in NPPES as a Durable Medical Equipment & Medical Supplies (its primary provider taxonomy).

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-05-24.