Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Schaefer & Associates Management LLC

Optometrist in Hartford, WI · enumerated 2010 · authorized official Dana Witter, Vice President.

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

National Provider Identifier

1003117664

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Registry record

Entity type Organization (Type 2)

Legal business name Schaefer & Associates Management LLC

Other name <Unavail>

Practice address 23 S Main St Ste B, Hartford, WI, 53027

Phone (262) 673-7711

Fax (262) 673-7712

Enumeration date Nov 12, 2010

Last updated in NPPES Jan 14, 2014

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License 2864 (WI) Primary

Authorized official

Name Dana Witter

Title Vice President

Phone (262) 251-2020

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 Schaefer & Associates Management LLC?

Schaefer & Associates Management LLC is registered in NPPES as a Optometrist (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-14.