Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

John C Siegltiz

Optometrist in Vevay, IN · enumerated 2009 · authorized official John Siegltiz, Owner.

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

National Provider Identifier

1780910497

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Registry record

Entity type Organization (Type 2)

Legal business name John C Siegltiz

Practice address 121 W Main St, Vevay, IN, 47043

Phone (812) 427-2717

Fax (812) 427-3265

Enumeration date Oct 30, 2009

Last updated in NPPES Oct 30, 2009

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License 18003584A (IN) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License 18001358A (IN) Primary

Authorized official

Name John Siegltiz

Title Owner

Phone (812) 427-2717

Other identifiers

Identifier	Type	State	Issuer
200950880A	Medicaid	IN	-
200336980A	Medicaid	IN	-

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2009-10-30. Verify at npiregistry.cms.hhs.gov.

Where is John C Siegltiz located?

The practice location on file with NPPES is in Vevay, IN.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-30.