Mary Slezak, RN

Primary specialty

Registered NurseTaxonomy code 163W00000X

License

818445 Issued in NY

Practice address

400 Patroon Creek Blvd Ste 211
Albany, NY 12206-5012

Phone

(518) 801-0725

NPI assigned

Jan 6, 2026

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Registered Nurse

State licenses

Practice roles

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.

• New York Oncology Hematology, P.C.

  • Hematology & Oncology Physician
  • Albany, NY
  • NPI 1609863448
  NPD (past)

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

{
    "created_epoch": "1767657600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767657600000",
    "number": "1245197953",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "400 PATROON CREEK BLVD STE 211",
            "city": "ALBANY",
            "state": "NY",
            "postal_code": "122065012",
            "telephone_number": "518-801-0725"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 PATROON CREEK BLVD STE 211",
            "city": "ALBANY",
            "state": "NY",
            "postal_code": "122065012",
            "telephone_number": "518-801-0725"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SLEZAK",
        "first_name": "MARY",
        "credential": "RN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-01-06",
        "last_updated": "2026-01-06",
        "certification_date": "2026-01-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "NY",
            "license": "818445",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Carolyn Jean Slatch, MD
• Joyce Marie Slater, CNM, MSN
• Michael Slavett, LMSW
• Erik W Sleicher
• Melanie A Sleight, RN
• Michael Slik, LMHC
• Alice May Slingerland, RD, CDN
• Victoria Slingerland, PHARMD, RPH
• Glenn B Sloat, M.D.
• Elzbieta A Slodkowska, M.D.

• Registered Nurse in Albany, NY
• Providers in Albany, NY by specialty
• Registered Nurse in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 6, 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.