Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Simpson Eye Associates Ltd

Q: What is the NPI number for Simpson Eye Associates Ltd?

The NPI for Simpson Eye Associates Ltd is 1235376021, a Type 2 (organization) record in the CMS NPPES registry.

Ophthalmology Physician in Hoffman Estates, IL · enumerated 2009 · authorized official Sam Kossoff, Coo.

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

National Provider Identifier

1235376021

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Registry record

Entity type Organization (Type 2)

Legal business name Simpson Eye Associates Ltd

Practice address 1555 Barrington Rd, Hoffman Estates, IL, 60169

Phone (847) 843-2000

Enumeration date Jan 15, 2009

Last updated in NPPES Mar 5, 2009

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Sam Kossoff

Title Coo

Phone (847) 426-0227

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.

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Frequently asked questions

Who is the authorized official for Simpson Eye Associates Ltd?

NPPES lists Sam Kossoff (Coo) as the authorized official for this organization.

What is the NPI number for Simpson Eye Associates Ltd?

The NPI for Simpson Eye Associates Ltd is 1235376021, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-03-05.