Krzysztof Sygnarowicz MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

189552 Issued in NY

Legal business name

KRZYSZTOF SYGNAROWICZ MD

Practice address

311 S Oyster Bay Rd
Syosset, NY 11791-6221

Phone

(516) 713-3211

Fax

(516) 266-6556

NPI assigned

Mar 13, 2012

Last updated

Sep 8, 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

Krzysztof SygnarowiczNPI 1982775326

Title

MD

Phone

(516) 713-3211

Specialties & licenses 1

Addresses

Other identifiers 2

Locations

Practitioners 2

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.

• Krzysztof Sygnarowicz, M.D.

  • Internal Medicine Physician
  • Syosset, NY
  • NPI 1982775326
  Authorized official Same address or phone
• Aleksandra A Wianecka, O.D.

  • Optometrist
  • Babylon, NY
  • NPI 1134164874
  NPD (past)

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

{
    "created_epoch": "1331596800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1788825600000",
    "number": "1174898928",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "311 S OYSTER BAY RD",
            "city": "SYOSSET",
            "state": "NY",
            "postal_code": "117916221",
            "telephone_number": "516-713-3211",
            "fax_number": "516-266-6556"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "311 S OYSTER BAY RD",
            "city": "SYOSSET",
            "state": "NY",
            "postal_code": "117916221",
            "telephone_number": "516-713-3211",
            "fax_number": "516-266-6556"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "KRZYSZTOF SYGNAROWICZ MD",
        "organizational_subpart": "NO",
        "enumeration_date": "2012-03-13",
        "last_updated": "2026-09-08",
        "certification_date": "2026-09-08",
        "status": "A",
        "authorized_official_last_name": "SYGNAROWICZ",
        "authorized_official_first_name": "KRZYSZTOF",
        "authorized_official_title_or_position": "MD",
        "authorized_official_telephone_number": "516-713-3211"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "189552",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "NPI-FOR INDIVIDUAL",
            "identifier": "1982775326",
            "state": "NY"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01390330",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Ruth Kravit
• Fred Barry Krellenstein, PSY.D.
• Naomi Krikheli
• Arundhati Krishnan
• Fran Bernstein Krivit, MA CCC SLP
• KS Medical Care PC
• Monica Kumar
• Stuart Kutcher, RPH
• Maria Lagonigro, MSED
• Jaques Laguerre, MD

• Internal Medicine Physician in Syosset, NY
• Providers in Syosset, NY by specialty
• Internal Medicine Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 8, 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.