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Stack Optical Services, Inc

Q: What is the NPI number for Stack Optical Services, Inc?

The NPI for Stack Optical Services, Inc is 1750401501, a Type 2 (organization) record in the CMS NPPES registry.

Non-Pharmacy Dispensing Site in Denver, CO · enumerated 2007 · authorized official Allen Stack, Owner Optician.

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

National Provider Identifier

1750401501

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Registry record

Entity type Organization (Type 2)

Legal business name Stack Optical Services, Inc

Practice address 3865 Cherry Creek North Dr, 130, Denver, CO, 80209

Phone (303) 321-1578

Fax (303) 322-3431

Enumeration date Mar 29, 2007

Last updated in NPPES May 24, 2011

Taxonomy & classification

332900000X Non-Pharmacy Dispensing Site Suppliers · License 21075280000 (CO) Primary

Authorized official

Name Allen Stack

Title Owner Optician

Phone (303) 321-1578

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 Stack Optical Services, Inc?

NPPES lists Allen Stack (Owner Optician) as the authorized official for this organization.

What is the NPI number for Stack Optical Services, Inc?

The NPI for Stack Optical Services, Inc is 1750401501, 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 2011-05-24.