Individual provider Active NPI

Mary Steszewski, BSN,RN,CGRN,CAPA

  • Gastroenterology Registered Nurse
  • New York, NY
National Provider Identifier
1376480590
Registry record updated May 4, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology Registered NurseTaxonomy code 163WG0100X
License
517032 Issued in NY
Practice address
525 E 68TH St
New York, NY 10065-4870
Phone
(212) 746-4411
NPI assigned
May 4, 2026
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on May 4, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Registered Nurse 163WG0100X 517032 NY Primary

Addresses

Primary practice location

525 E 68TH St
New York, NY 10065-4870

Mailing address

1320 York Ave Apt 21E
New York, NY 10021-4861
Phone (212) 746-4411

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
Credentials
Bachelor on Science - Nursing, Registered Nurse

State licenses

LicenseStateTypeSpecialty
517032NYMDGastroenterology Registered Nurse

NPI Registry JSON

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

{
    "created_epoch": "1777852800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777852800000",
    "number": "1376480590",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1320 YORK AVE APT 21E",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100214861",
            "telephone_number": "212-746-4411"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "525 E 68TH ST",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100654870",
            "telephone_number": "212-746-4411"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "STESZEWSKI",
        "first_name": "MARY",
        "credential": "BSN,RN,CGRN,CAPA",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-05-04",
        "last_updated": "2026-05-04",
        "certification_date": "2026-05-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WG0100X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Gastroenterology",
            "state": "NY",
            "license": "517032",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New York, NY

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 4, 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.