Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Retina Associates, PC

Ophthalmology Physician in Merrillville, IN · enumerated 2005 · authorized official Christopher Pelzek, President.

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

National Provider Identifier

1245233014

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Registry record

Entity type Organization (Type 2)

Legal business name Retina Associates, PC

Practice address 8679 Connecticut St, Ste A, Merrillville, IN, 46410

Phone (219) 769-9022

Fax (219) 769-1918

Enumeration date May 24, 2005

Last updated in NPPES Sep 19, 2025

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Christopher Pelzek

Title President

Phone (219) 769-9022

Other identifiers

Identifier	Type	State	Issuer
100213880	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

Where is Retina Associates, PC located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2025-09-19. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-19.