Rosalvo Xavier Jr., FNP

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

19979 Issued in CA

Practice address

900 Hyde St
Emergency Department
San Francisco, CA 94109-4806

Phone

(415) 944-7677

NPI assigned

Aug 3, 2010

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 4

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: No
• Medical equipment: Yes
• Home health: No
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

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

{
    "created_epoch": "1280793600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787270400000",
    "number": "1578877445",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "900 HYDE ST",
            "address_2": "EMERGENCY DEPARTMENT",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941094806",
            "telephone_number": "415-944-7677"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "900 HYDE ST",
            "address_2": "EMERGENCY DEPARTMENT",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941094806",
            "telephone_number": "415-944-7677"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "XAVIER",
        "first_name": "ROSALVO",
        "name_prefix": "Mr.",
        "name_suffix": "Jr.",
        "credential": "FNP",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2010-08-03",
        "last_updated": "2026-08-21",
        "certification_date": "2026-08-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "CA",
            "license": "19979",
            "primary": true
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "CA",
            "license": "19979",
            "primary": false
        },
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "FL",
            "license": "APRN11038660",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "FL",
            "license": "APRN11038660",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Holley Wysong, RD, CDE
• X.O. Barrios, MD a Prof Corp
• Christopher H Xavier, D.C.
• Danika Xavier
• Paul Anthony Xavier, DDS
• Erilda Xholi, DDS
• Nicole Xia, MD
• Tom Yifu Xia, M.D.
• Xue Xia, DDS
• Kun Xiang, OMD LAC

• Psychiatric/Mental Health Nurse Practitioner in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Psychiatric/Mental Health Nurse Practitioner in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 21, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.