Marianna Grace Pettit

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

42357 Issued in TN

Practice address

4604 Tanglewood Rd
Knoxville, TN 37912-3913

Phone

(703) 868-9797

NPI assigned

Jul 1, 2026

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

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.

Medicare enrollment (NPD)

Not enrolled

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

{
    "created_epoch": "1782864000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782864000000",
    "number": "1215854229",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4604 TANGLEWOOD RD",
            "city": "KNOXVILLE",
            "state": "TN",
            "postal_code": "379123913",
            "telephone_number": "703-868-9797"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4604 TANGLEWOOD RD",
            "city": "KNOXVILLE",
            "state": "TN",
            "postal_code": "379123913",
            "telephone_number": "703-868-9797"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PETTIT",
        "first_name": "MARIANNA",
        "middle_name": "GRACE",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-07-01",
        "last_updated": "2026-07-01",
        "certification_date": "2026-05-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "TN",
            "license": "42357",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Elizabeth R. Petree, BS
• Whitney J Petree
• Diane L Petrilla, MD
• Peter T Petruzzi Jr., MD
• Jamie K Pettet
• Tanner Matthew Pettit, MD
• Colton Ryan Petty, MD
• David Gordon Petty Jr., M.D.
• Michael Travis Petty, D.C.
• Samantha R Petty, APN, RN

• Psychiatric/Mental Health Nurse Practitioner in Knoxville, TN
• Providers in Knoxville, 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 1, 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.