Helen S McNicholas, R.N., C.S., F.N.P.

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

RN099009 Issued in AZ

Practice address

8307 E Neville Ave
Mesa, AZ 85208-6730

Phone

(480) 984-2863

NPI assigned

Jul 11, 2005

Last updated

Jul 13, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Registered Nurse

State licenses

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

{
    "created_epoch": "1121040000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1598763989",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8307 E NEVILLE AVE",
            "city": "MESA",
            "state": "AZ",
            "postal_code": "852086730",
            "telephone_number": "480-984-2863"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8307 E NEVILLE AVE",
            "city": "MESA",
            "state": "AZ",
            "postal_code": "852086730",
            "telephone_number": "480-984-2863"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCNICHOLAS",
        "first_name": "HELEN",
        "middle_name": "S",
        "name_prefix": "Ms.",
        "credential": "R.N., C.S., F.N.P.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-07-11",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "AZ",
            "license": "RN099009",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "AZ",
            "license": "RN099009",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kirsten Elizabeth McMillen
• Scott Winston McMullin
• Alyse Danae McNair, B.S.
• Tracy Erin McNamara, DO
• Virginia McNamee
• Ryan A. McPherson, D.O.
• Korie Brooke McQuaite, PA-C
• Daelun Jacob McRae, PA-C
• Owen McRae
• Samantha Jolene McRoy

• Family Nurse Practitioner in Mesa, AZ
• Providers in Mesa, AZ by specialty
• Family Nurse Practitioner in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.