Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joseph Edward Zilisch

Ophthalmology Physician in Glendale, WI · enumerated 2016.

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

National Provider Identifier

1144683517

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Registry record

Entity type Individual (Type 1)

Name Joseph Edward Zilisch

Sex Male

Practice address 5150 N Port Washington Rd Ste 251, Glendale, WI, 53217

Phone (414) 332-0606

Fax (414) 967-3604

Enumeration date Apr 1, 2016

Last updated in NPPES Jun 8, 2021

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 0101269431 (VA) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 75083 (WI) Primary

Other identifiers

Identifier	Type	State	Issuer
1144683517	Medicaid	WI	-

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

Is NPI 1144683517 active?

Yes, as of the latest NPPES snapshot, NPI 1144683517 is active (record last updated 2021-06-08).

How do I verify Joseph Zilisch's NPI record?

Cross-check NPI 1144683517 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-08.