Retina Associates, PC

Primary specialty

Ophthalmology PhysicianTaxonomy code 207W00000X

Legal business name

RETINA ASSOCIATES, PC

Practice address

8679 Connecticut St
Ste a
Merrillville, IN 46410-6383

Phone

(219) 769-9022

Fax

(219) 769-1918

NPI assigned

May 24, 2005

Last updated

Sep 19, 2025By the provider in NPPES

Organization subpart

No

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name

Dr. Christopher David Pelzek, M.D.NPI 1669475281

Title

President

Phone

(219) 769-9022

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in IN

Enrollment records 1

Locations

Practitioners 11

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Christopher David Pelzek, M.D.

  • Ophthalmology Physician
  • Merrillville, IN
  • NPI 1669475281

  Specialist

  Medicare reassignment Care Compare group NPD Authorized official
• Ruchita D Amin, M.D.

  • Ophthalmology Physician
  • Munster, IN
  • NPI 1235367467
  Medicare reassignment Care Compare group NPD
• Joel Eric Chasan, M.D.

  • Ophthalmology Physician
  • Merrillville, IN
  • NPI 1730522830
  Medicare reassignment Care Compare group NPD
• James Arthur Eadie, M.D.

  • Ophthalmology Physician
  • Merrillville, IN
  • NPI 1205091097
  Medicare reassignment Care Compare group NPD
• Philip Kurochkin, MD

  • Ophthalmology Physician
  • Mishawaka, IN
  • NPI 1962931303
  Medicare reassignment Care Compare group NPD
• Sahana Vyas, M.D.

  • Ophthalmology Physician
  • Merrillville, IN
  • NPI 1851312326
  Medicare reassignment Care Compare group NPD
• Richard Mark Lipman, M.D.

  • Specialist
  • Merrillville, IN
  • NPI 1730182361
  Medicare reassignment NPD
• John Fraser Wilson, M.D.

  • Specialist
  • Merrillville, IN
  • NPI 1538162151
  NPD
• Tsunkang Chiang, MD

  • Ophthalmology Physician
  • Merrillville, IN
  • NPI 1033745021
  NPD (past)
• Irma Ahmed, MD

  • Retina Specialist (Ophthalmology) Physician
  • Bolingbrook, IL
  • NPI 1447243407
  NPD (past)
• Susan G Vierling, M.D.

  • Ophthalmology Physician
  • Lombard, IL
  • NPI 1306825930
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1116892800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1758240000000",
    "number": "1245233014",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8679 CONNECTICUT ST STE A",
            "city": "MERRILLVILLE",
            "state": "IN",
            "postal_code": "464106383",
            "telephone_number": "219-769-9022",
            "fax_number": "219-649-2995"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8679 CONNECTICUT ST",
            "address_2": "STE A",
            "city": "MERRILLVILLE",
            "state": "IN",
            "postal_code": "464106383",
            "telephone_number": "219-769-9022",
            "fax_number": "219-769-1918"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "931 Ridge Rd Ste H",
            "address_purpose": "LOCATION",
            "city": "Munster",
            "state": "IN",
            "postal_code": "463211756",
            "country_code": "US",
            "telephone_number": "219-836-4110",
            "fax_number": "219-836-2709",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4400 N Calumet Ave Ste 100",
            "address_purpose": "LOCATION",
            "city": "Valparaiso",
            "state": "IN",
            "postal_code": "463831696",
            "country_code": "US",
            "telephone_number": "219-242-8221",
            "fax_number": "219-299-2580",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2000 Franklin St Ste A",
            "address_purpose": "LOCATION",
            "city": "Michigan City",
            "state": "IN",
            "postal_code": "463604535",
            "country_code": "US",
            "telephone_number": "219-872-4445",
            "fax_number": "219-872-4436",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "RETINA ASSOCIATES, PC",
        "organizational_subpart": "NO",
        "enumeration_date": "2005-05-24",
        "last_updated": "2025-09-19",
        "certification_date": "2025-09-19",
        "status": "A",
        "authorized_official_last_name": "PELZEK",
        "authorized_official_first_name": "CHRISTOPHER",
        "authorized_official_middle_name": "DAVID",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "219-769-9022",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Ophthalmology",
            "state": "IN",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100213880",
            "state": "IN"
        }
    ],
    "endpoints": [],
    "other_names": []
}

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• Ophthalmology Physician in Merrillville, IN
• Providers in Merrillville, IN by specialty
• Ophthalmology Physician in Indiana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 19, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.