Peter Joseph Walker

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

F408395-01 Issued in NY

Practice address

461 21St Ave S
Nashville, TN 37240-1104

Phone

(615) 322-4400

NPI assigned

May 12, 2025

Sex

Male

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

Eligible to order & refer

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

Green means eligible to order or refer.

Specialty

Nurse Practitioner

Education

Other, 2025

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

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

{
    "created_epoch": "1747008000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785196800000",
    "number": "1407646433",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "515 MADISON ST APT 17",
            "city": "NASHVILLE",
            "state": "TN",
            "postal_code": "372081663",
            "telephone_number": "845-238-8224"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "461 21ST AVE S",
            "city": "NASHVILLE",
            "state": "TN",
            "postal_code": "372401104",
            "telephone_number": "615-322-4400"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WALKER",
        "first_name": "PETER",
        "middle_name": "JOSEPH",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-05-12",
        "last_updated": "2026-07-28",
        "certification_date": "2026-07-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "NY",
            "license": "F408395-01",
            "primary": true
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "TN",
            "license": "261223",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Lisa Imbrogno Walker, PHARMD
• Lynn Walker, PHD
• Myrtis Walker, M.S., R.D., LDN
• Natalie Kristin Walker, MD
• Paige Walker, COTA/L
• Quincy J. Walker
• Rachel Walker, WHNP-BC
• Rebecca Robinson Walker, LMFT
• Rebekah J. Walker, LCSW
• Ronald Clark Walker, M.D.

• Psychiatric/Mental Health Nurse Practitioner in Nashville, TN
• Providers in Nashville, TN by specialty
• Psychiatric/Mental Health Nurse Practitioner in Tennessee

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 28, 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.