Elizabeth Hadden Callard, NP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

14272 Issued in CA

Practice address

725 Welch Rd
Palo Alto, CA 94304-1601

Phone

(650) 497-8000

NPI assigned

May 2, 2007

Last updated

May 8, 2025By 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

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

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

{
    "created_epoch": "1178064000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1746662400000",
    "number": "1568684595",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "725 WELCH RD",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943041601",
            "telephone_number": "650-497-8000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "725 WELCH RD",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943041601",
            "telephone_number": "650-497-8000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "725 Welch Rd",
            "address_2": "2 North",
            "address_purpose": "LOCATION",
            "city": "Palo Alto",
            "state": "CA",
            "postal_code": "943041601",
            "country_code": "US",
            "telephone_number": "650-497-8446",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CALLARD",
        "first_name": "ELIZABETH",
        "middle_name": "HADDEN",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-05-02",
        "last_updated": "2025-05-08",
        "certification_date": "2025-05-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "CA",
            "license": "14272",
            "primary": true
        },
        {
            "code": "363LP0200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Pediatrics",
            "state": "CA",
            "license": "14272",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "N.P. FURNISHING NUMBER",
            "identifier": "14272",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

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• Nurse Practitioner in Palo Alto, CA
• Providers in Palo Alto, CA by specialty
• Nurse Practitioner in California

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