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Osl 1301 Watertown Operating LLC

Assisted Living Facility in Watertown, WI · enumerated 2023 · authorized official Matt Teresinski, Vp.

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

National Provider Identifier

1831974393

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Registry record

Entity type Organization (Type 2)
Legal business name Osl 1301 Watertown Operating LLC
Parent organization Osl Platinum Management LLC
Practice address 1301 E Main St, Watertown, WI, 53094
Phone (920) 567-0100
Fax (920) 567-0101
Enumeration date Aug 31, 2023
Last updated in NPPES Jul 23, 2024

Taxonomy & classification

310400000X Assisted Living Facility Nursing & Custodial Care Facilities Primary

Authorized official

Name Matt Teresinski
Title Vp
Phone (414) 324-5172

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 Osl 1301 Watertown Operating LLC?
NPPES lists Matt Teresinski (Vp) as the authorized official for this organization.
What is the NPI number for Osl 1301 Watertown Operating LLC?
The NPI for Osl 1301 Watertown Operating LLC is 1831974393, 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 2024-07-23.