Katarzyna Bigaj, M.D.

Primary specialty

Pediatric Gastroenterology PhysicianTaxonomy code 2080P0206X

License

326156 Issued in NY

Practice address

3411 Wayne Ave FL 7
Bronx, NY 10467-2552

Phone

(847) 312-0853

NPI assigned

Jun 7, 2013

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in NY

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Networks

• Healthfirst Medicare Network H1722
• Healthfirst Medicare Network H5989
• Healthfirst Medicare Network H9678
• Healthfirst Medicare Network H3359

Interoperability endpoints

• Direct secure messaging: kbigaj@montefioredirect.com

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.

• Montefiore Medical Center

  • Anesthesiology Physician
  • Bronx, NY
  • NPI 1063525152

  Pediatrics

  Medicare reassignment NPD
• Boston Children's Health Physicians, LLP

  • Pediatrics Physician
  • Hawthorne, NY
  • NPI 1467454967
  Medicare reassignment
• Montefiore Medical Center

  dba Montefiore Community Pharmacy @ CHAM

  • Community/Retail Pharmacy
  • Bronx, NY
  • NPI 1194183715
  NPD
• Montefiore Medical Center

  • General Acute Care Hospital
  • Bronx, NY
  • NPI 1952476988
  NPD (past)

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

{
    "created_epoch": "1370563200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773964800000",
    "number": "1043658420",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3411 WAYNE AVE FL 7",
            "city": "BRONX",
            "state": "NY",
            "postal_code": "104672552"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3411 WAYNE AVE FL 7",
            "city": "BRONX",
            "state": "NY",
            "postal_code": "104672552",
            "telephone_number": "847-312-0853"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "921 Gessner Rd",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770242501",
            "country_code": "US",
            "telephone_number": "713-242-3000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "975 Baptist Way",
            "address_purpose": "LOCATION",
            "city": "Homestead",
            "state": "FL",
            "postal_code": "330337600",
            "country_code": "US",
            "telephone_number": "954-583-9995",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "100 Woods Rd",
            "address_purpose": "LOCATION",
            "city": "Valhalla",
            "state": "NY",
            "postal_code": "105951530",
            "country_code": "US",
            "telephone_number": "914-493-6924",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BIGAJ",
        "first_name": "KATARZYNA",
        "name_prefix": "Miss",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-06-07",
        "last_updated": "2026-03-20",
        "certification_date": "2026-03-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0206X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Gastroenterology",
            "state": "NY",
            "license": "326156",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Big City Dental P.C.
• Big Mart Pharmacy Inc (Big Mart Pharmacy)
• Big Mart Pharmacy Inc
• Big Steps Foundation LLC
• Big Steps Foundations LLC
• Doris Biggs, SLP
• Everton Constantine Biggs, SPECIALIST
• Jacqueline Biggs, CNM
• Novelene Biggs
• Shalis Yolanda Biggs, RN

• Pediatric Gastroenterology Physician in Bronx, NY
• Providers in Bronx, NY by specialty
• Pediatric Gastroenterology Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 20, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.