Individual provider Active NPI

Gregory Allen Gergans, M.D.

  • General Practice Physician
  • Evanston, IL
National Provider Identifier
1194796409
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
General Practice PhysicianTaxonomy code 208D00000X
Practice address
2221 Grant St
Evanston, IL 60201-2503
Phone
(773) 732-3289
NPI assigned
Jan 27, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
General Practice Physician 208D00000X IL Primary

Addresses

Primary practice location

2221 Grant St
Evanston, IL 60201-2503

Mailing address

2221 Grant St
Evanston, IL 60201-2503
Phone (773) 732-3289

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
HHS exclusion list flag
Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
036-042882ILMDGeneral Practice Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Midwest Medical Management, P.C. Past Accepting new patients
Inspire Healthcare, Inc. General Practice PastSince Sep 27, 2011 Accepting new patients
Breckinridge Health, Inc. Past Accepting new patients

Organizations & group practices 3

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": "1138320000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1194796409",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2221 GRANT ST",
            "city": "EVANSTON",
            "state": "IL",
            "postal_code": "602012503",
            "telephone_number": "773-732-3289"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2221 GRANT ST",
            "city": "EVANSTON",
            "state": "IL",
            "postal_code": "602012503",
            "telephone_number": "773-732-3289"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GERGANS",
        "first_name": "GREGORY",
        "middle_name": "ALLEN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-27",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208D00000X",
            "taxonomy_group": "",
            "desc": "General Practice",
            "state": "IL",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Evanston, IL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; 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.