Individual provider Active NPI

Rachel Ruth Lay, PMHNP-BC

  • Psychiatric/Mental Health Nurse Practitioner
  • Knoxville, TN
National Provider Identifier
1174465561
Registry record updated Jun 26, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X
License
42288 Issued in TN
Practice address
2018 Western Ave
Knoxville, TN 37921-5718
Phone
(865) 544-0406
Fax
(865) 544-0480
NPI assigned
Apr 7, 2026
Last updated
Jun 26, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 26, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Psychiatric/Mental Health Nurse Practitioner 363LP0808X 42288 TN Primary
Registered Nurse 163W00000X 127121 TN

Addresses

Primary practice location

2018 Western Ave
Knoxville, TN 37921-5718

Mailing address

1923 Sulphur Springs Rd
Morristown, TN 37813-5654
Phone (423) 317-9344

Other names 1

  • Rache Ruth Mack Former name

Medicare participation

Medicare enrollment files
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.

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
127121TNMDRegistered Nurse

NPI Registry JSON

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

{
    "created_epoch": "1775520000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782432000000",
    "number": "1174465561",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1923 SULPHUR SPRINGS RD",
            "city": "MORRISTOWN",
            "state": "TN",
            "postal_code": "378135654",
            "telephone_number": "423-317-9344",
            "fax_number": "423-714-2355"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2018 WESTERN AVE",
            "city": "KNOXVILLE",
            "state": "TN",
            "postal_code": "379215718",
            "telephone_number": "865-544-0406",
            "fax_number": "865-544-0480"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LAY",
        "first_name": "RACHEL",
        "middle_name": "RUTH",
        "credential": "PMHNP-BC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-04-07",
        "last_updated": "2026-06-26",
        "certification_date": "2026-06-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "TN",
            "license": "42288",
            "primary": true
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "TN",
            "license": "127121",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "RACHE",
            "last_name": "MACK",
            "middle_name": "RUTH",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Knoxville, TN

Sources for this page

Verify at the official NPI Registry.