Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Tristate Retina and Eye Center, LLC

Ophthalmology Physician in Evansville, IN · enumerated 2016 · authorized official Anthony Ekong, President.

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

National Provider Identifier

1821440199

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Registry record

Entity type Organization (Type 2)

Legal business name Tristate Retina and Eye Center, LLC

Practice address 350 W Columbia St, Suite 250, Evansville, IN, 47710

Phone (812) 423-3161

Fax (812) 423-3156

Enumeration date Jul 11, 2016

Last updated in NPPES Jul 11, 2016

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Anthony Ekong

Title President

Phone (812) 423-3161

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 type of organization is Tristate Retina and Eye Center, LLC?

Tristate Retina and Eye Center, LLC is registered in NPPES as a Ophthalmology Physician (its primary provider taxonomy).

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-07-11.