Grzegorz Bigaj DN Lac Inc

Primary specialty

NaprapathTaxonomy code 172P00000X

Legal business name

GRZEGORZ BIGAJ DN LAC INC

Practice address

1500 Shermer Rd Ste 334W
Northbrook, IL 60062-5345

Phone

(773) 879-7401

NPI assigned

May 25, 2026

Last updated

May 25, 2026By 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. Grzegorz Bigaj, NDNPI 1629190426

Title

President

Phone

(773) 879-7401

Specialties & licenses 2

Addresses

Locations

Practitioners 1

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.

• Grzegorz Bigaj, DN, LAC

  • Acupuncturist
  • Niles, IL
  • NPI 1629190426
  Authorized official Same address or phone

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

{
    "created_epoch": "1779667200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1779667200000",
    "number": "1578494159",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1500 SHERMER RD STE 334W",
            "city": "NORTHBROOK",
            "state": "IL",
            "postal_code": "600625345",
            "telephone_number": "773-879-7401"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 SHERMER RD STE 334W",
            "city": "NORTHBROOK",
            "state": "IL",
            "postal_code": "600625345",
            "telephone_number": "773-879-7401"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "GRZEGORZ BIGAJ DN LAC INC",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-05-25",
        "last_updated": "2026-05-25",
        "certification_date": "2026-05-25",
        "status": "A",
        "authorized_official_last_name": "BIGAJ",
        "authorized_official_first_name": "GRZEGORZ",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "773-879-7401",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "ND"
    },
    "taxonomies": [
        {
            "code": "171100000X",
            "taxonomy_group": "",
            "desc": "Acupuncturist",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "172P00000X",
            "taxonomy_group": "",
            "desc": "Naprapath",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Eva Grosz
• Grove of Northbrook Living & Rehab Center LLC
• Sarah Elizabeth Grum, COTA/L
• Mark A. Grumet, D.C.
• Kimberly Grunde
• Federico Diodato Carlo Guerriero, RBT
• Mallory Gulling
• Hannah Gupton, M.S., L.P.C
• Boris Gurevich, M.D.
• Leon Gurvich, ANP

• Naprapath in Northbrook, IL
• Providers in Northbrook, IL by specialty
• Naprapath in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 25, 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.