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Ophthalmology Associates S C

Ophthalmology Physician in Greenfield, WI · enumerated 2019 · authorized official Thomas Alpren, Owner/Physician.

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

National Provider Identifier

1720543614

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Registry record

Entity type Organization (Type 2)
Legal business name Ophthalmology Associates S C
Other name <Unavail>
Practice address 4600 W Loomis Rd Ste 310, Greenfield, WI, 53220
Phone (414) 281-0424
Fax (414) 281-0959
Enumeration date Feb 5, 2019
Last updated in NPPES Apr 23, 2024

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers Secondary
207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Thomas Alpren
Title Owner/Physician
Phone (414) 281-0424

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

Where is Ophthalmology Associates S C located?
The practice location on file with NPPES is in Greenfield, WI.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2024-04-23. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-23.