Individual provider Active NPI

Gary P Sterczek, OD

  • Optometrist
  • Chicago, IL
National Provider Identifier
1346239142
Registry record updated May 7, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
OptometristTaxonomy code 152W00000X
License
046-008006 Issued in IL
Practice address
2338 N Clark St Ste 1
Chicago, IL 60614-7043
Phone
(773) 857-1260
Fax
(773) 857-1624
NPI assigned
Oct 14, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 7, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Optometrist 152W00000X 046-008006 IL Primary
Optometrist 152W00000X 346-001503 IL
Optometrist 152W00000X 046008006 IL

Addresses

Primary practice location

2338 N Clark St Ste 1
Chicago, IL 60614-7043

Mailing address

3943 N Merrimac Ave
Chicago, IL 60634-2512
Phone (847) 849-0260

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: No
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20051129000532 IL Practitioner - Optometry 5991725467 Reassigns benefits to 1 organization

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
046-008006ILMDOptometrist
346-001503ILMDOptometrist

Practice roles

OrganizationSpecialtyStatusNew patients
Visionworks, Inc. Optometrist CurrentSince Mar 1, 2014 Accepting new patients
Visionworks, Inc CurrentSince Mar 1, 2014 Accepting new patients
Randall R Ricketts OD LLC Optometrist Past Accepting new patients
Eye Boutique, LLC Optometrist Past Accepting new patients

Locations

239 Golf Mill Ctr
Ste 255
Niles, IL 60714
Phone (847) 297-2286

2422 US Highway 34
Oswego, IL 60543
Phone (630) 551-4133

7200 Harrison Ave
Unit F35
Rockford, IL 61112
Phone (815) 323-8228

Organizations & group practices 4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1129248000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778112000000",
    "number": "1346239142",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3943 N MERRIMAC AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606342512",
            "telephone_number": "847-849-0260",
            "fax_number": "773-857-1624"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2338 N CLARK ST STE 1",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606147043",
            "telephone_number": "773-857-1260",
            "fax_number": "773-857-1624"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "STERCZEK",
        "first_name": "GARY",
        "middle_name": "P",
        "name_prefix": "Dr.",
        "credential": "OD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-14",
        "last_updated": "2026-05-07",
        "certification_date": "2026-05-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "IL",
            "license": "046-008006",
            "primary": true
        },
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "IL",
            "license": "346-001503",
            "primary": false
        },
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "IL",
            "license": "046008006",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

Verify at the official NPI Registry.