Gerstein Ior LLC

Primary specialty

Ambulatory Surgical Clinic/CenterTaxonomy code 261QA1903X

Legal business name

GERSTEIN IOR LLC

Practice address

3042 W Peterson Ave
Chicago, IL 60659-3729

Phone

(773) 973-3223

NPI assigned

Jun 3, 2025

Organization subpart

No

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

Authorized official

Name

Craig Gerstein

Title

Medical Director

Phone

(773) 973-3223

Specialties & licenses 2

Addresses

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

{
    "created_epoch": "1748908800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1752710400000",
    "number": "1992698203",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3042 W PETERSON AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606593729",
            "telephone_number": "773-973-3223"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3042 W PETERSON AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606593729",
            "telephone_number": "773-973-3223"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "GERSTEIN IOR LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-06-03",
        "last_updated": "2025-07-17",
        "certification_date": "2025-07-17",
        "status": "A",
        "authorized_official_last_name": "GERSTEIN",
        "authorized_official_first_name": "CRAIG",
        "authorized_official_title_or_position": "MEDICAL DIRECTOR",
        "authorized_official_telephone_number": "773-973-3223"
    },
    "taxonomies": [
        {
            "code": "261QA1903X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Ambulatory Surgical",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "261QS0132X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Ophthalmologic Surgery",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Gerson H Kaplan MD SC
• David Alan Gerst, DPM
• Nancy A Gerstad, M.D.
• Gerstein Eye Institute
• Gerstein Eye Institute
• Craig H Gerstein, M.D.
• Melvyn A Gerstein, M.D.
• Mordecai M Gerstein, M.D.
• Michael Gersten, RP.H
• Tracy S Gertler, M.D., PH.D.

• Ambulatory Surgical Clinic/Center in Chicago, IL
• Providers in Chicago, IL by specialty
• Ambulatory Surgical Clinic/Center in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 17, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.