Isabel Wittmaack, RN, NP

Primary specialty

Critical Care Medicine Registered NurseTaxonomy code 163WC0200X

License

704086 Issued in NY

Practice address

601 Elmwood Ave
Rochester, NY 14642-0001

Phone

(585) 275-2100

NPI assigned

Jul 28, 2025

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Nurse Practitioner, Registered Nurse

State licenses

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

{
    "created_epoch": "1753660800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753660800000",
    "number": "1477436616",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1343 ELY RD",
            "city": "CORTLAND",
            "state": "NY",
            "postal_code": "130459437",
            "telephone_number": "607-745-6331"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "601 ELMWOOD AVE",
            "city": "ROCHESTER",
            "state": "NY",
            "postal_code": "146420001",
            "telephone_number": "585-275-2100"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WITTMAACK",
        "first_name": "ISABEL",
        "credential": "RN, NP",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2025-07-28",
        "last_updated": "2025-07-28",
        "certification_date": "2025-07-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "NY",
            "license": "431919",
            "primary": false
        },
        {
            "code": "163WC0200X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Critical Care Medicine",
            "state": "NY",
            "license": "704086",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Andrea Witter, LCSW
• Janet A Witter
• Marsha N Wittink, MD
• Rebecca Judith Wittlin, M.S
• Steven D Wittlin, MD
• Elana Marie Wittman, LPN
• Lauren Wittman, NP
• Lisa Wizeman
• Grace Katherine Wlasowicz, RN, PHD, NPP
• Samuel John Wlasowicz, DO

• Critical Care Medicine Registered Nurse in Rochester, NY
• Providers in Rochester, NY by specialty
• Critical Care Medicine Registered Nurse in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 28, 2025; 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.