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RETINA ASSOCIATES, PC
NPI 1245233014
Ophthalmology in Merrillville, IN

Active since May 24, 2005
8679 CONNECTICUT ST, STE A, MERRILLVILLE, IN 46410(219) 769-9022(219) 769-1918 Get Directions Write a Review

NPPES record last updated: September 19, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Retina Associates, Pc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RETINA ASSOCIATES, PC (NPI 1245233014) is a healthcare organization registered as an ophthalmology in Merrillville, Indiana and active in the NPI registry since May 2005. The organization maintains 3 additional practice locations and lists Christopher David Pelzek, President, as its authorized official.

NPPES Registry Identity

NPI1245233014
Entity TypeOrganization
Primary Taxonomy207W00000X
Legal Business NameRETINA ASSOCIATES, PC
Location Address8679 CONNECTICUT ST, STE AMerrillville, IN 46410-6383
Mailing Address8679 Connecticut St Ste AMerrillville, IN 46410-6383 · (219) 769-9022 · Fax (219) 649-2995
Phone(219) 769-9022
Fax(219) 769-1918
Organization SubpartNo
Authorized OfficialChristopher David PelzekPresident · (219) 769-9022
Enumeration DateMay 24, 2005
Last NPPES UpdateSeptember 19, 2025
NPPES CertifiedSeptember 19, 2025
✔ NPI 1245233014 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
8679 CONNECTICUT ST, Merrillville, IN 46410
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Secondary Practice Locations 3

Location 14400 N Calumet Ave Ste 100Valparaiso, IN 46383-1696 · Phone (219) 242-8221 · Fax (219) 299-2580
Location 2931 Ridge Rd Ste HMunster, IN 46321-1756 · Phone (219) 836-4110 · Fax (219) 836-2709
Location 32000 Franklin St Ste AMichigan City, IN 46360-4535 · Phone (219) 872-4445 · Fax (219) 872-4436

Other Identifiers 1

Medicaid100213880IN

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Retina Associates, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by January 31, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateIndianaEnrollment IDO20100422000012Non-DME Part B · Clinic/Group PracticeDue dateJanuary 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

7

Medicare enrollment records show 7 clinicians reassign Medicare billing to Retina Associates, PC, which bills Medicare for the services they deliver. Of these, 5 practice at this address. They are listed nearest first.

Clinicians, nearest first (7)

Joel Chasan, M.D.
Ophthalmology
NPI 1730522830
8679 CONNECTICUT STREET SUITE A
Merrillville, IN 46410
(219) 769-9022
✔ PECOS✔ Accepts MedicareSame address
Tsunkang Chiang, MD
Ophthalmology
NPI 1033745021
8679 CONNECTICUT ST STE A
Merrillville, IN 46410
(219) 769-9022
✔ PECOS✔ Accepts MedicareSame address
James Eadie, M.D.
Ophthalmology
NPI 1205091097
8679 CONNECTICUT ST STE A
Merrillville, IN 46410
(219) 769-9022
✔ PECOS✔ Accepts MedicareSame address
Christopher Pelzek, M.D.
Ophthalmology
NPI 1669475281
8679 CONNECTICUT ST STE A
Merrillville, IN 46410
(219) 769-9022
✔ PECOS✔ Accepts MedicareSame address
Sahana Vyas, M.D.
Ophthalmology
NPI 1851312326
8679 CONNECTICUT STREET SUITE A
Merrillville, IN 46410
(219) 769-9022
✔ PECOS✔ Accepts MedicareSame address
Ruchita Amin, M.D.
Ophthalmology
NPI 1235367467
931 RIDGE RD STE H
Munster, IN 46321
(219) 836-4110
✔ PECOS✔ Accepts Medicare11 mi
Philip Kurochkin, MD
Ophthalmology
NPI 1962931303
303 S MAIN ST STE 215
Mishawaka, IN 46544
(574) 291-4000
✔ PECOS✔ Accepts Medicare61 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Retina Associates, PC's NPI number?

The NPI number for Retina Associates, PC is 1245233014. It was assigned to this organization in the NPPES registry on May 24, 2005.

Where is Retina Associates, PC located?

Retina Associates, PC is located at 8679 Connecticut St Ste A, Merrillville, IN 46410. The listed phone number is (219) 769-9022.

What is Retina Associates, PC's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Retina Associates, PC enrolled in Medicare?

Yes. Retina Associates, PC is registered in the Medicare PECOS enrollment system.

When is Retina Associates, PC's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Indiana, Clinic/Group Practice) is due for revalidation by January 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Retina Associates, PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians, all in Ophthalmology, reassign their Medicare billing to Retina Associates, PC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 5 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Retina Associates, PC accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource list Retina Associates, PC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Retina Associates, PC was last updated on September 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.