Active NPI
Extasy Grinn, LCSW, CAP. ICADC
- Clinical Social Worker
- Maryville, TN
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- 7341
- Practice address
- 2030 Chilhowee Medical Park
Maryville, TN 37804-5285 - Phone
- (865) 982-3400
- Fax
- (865) 238-2034
- NPI assigned
- Dec 16, 2017
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Addiction (Substance Use Disorder) Counselor | 101YA0400X | ADC-003288-2014 | FL | |
| Social Worker | 104100000X | 7341 | TN | |
| Clinical Social Worker | 1041C0700X | SW14806 | FL | |
| Clinical Social Worker | 1041C0700X | 7341 | TN | Primary |
Addresses
Primary practice location
2030 Chilhowee Medical Park
Maryville, TN 37804-5285
Mailing address
4799 Palmbrooke Cir
West Palm Beach, FL 33417-7534
Phone (561) 876-8751
Other practice location 1
4799 Palmbrooke Cir
West Palm Beach, FL 33417-7534
Phone (561) 876-8751
Other practice location 2
10133 Sherrill Blvd Ste 220
Knoxville, TN 37932-3775
Phone (615) 320-1155
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in TN
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: No
- Power mobility devices: No
- Hospice: No
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Clinical Social Worker
- Education
- Florida Atlantic University, College of Medicine, 2015
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
10133 Sherrill Blvd
Suite 220
Knoxville, TN 37932-3347
Phone (615) 320-1155
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| ADC-003288-2014 | FL | MD | Addiction (Substance Use Disorder) Counselor |
| SW14806 | FL | MD | Clinical Social Worker |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Athena Consulting and Psychological Services, PLLC | Clinical | Current | Accepting new patients |
| Speech Pathology Services of East Tennessee LLC | Clinical | Past | Accepting new patients |
| Little Tennessee Valley Educational Cooperative | Past | Accepting new patients |
Locations
109 Hazel Path
Ste 4
Hendersonvlle, TN 37075
Phone 6153201155 ext. 232
10133 Sherrill Blvd
Ste 220
Knoxville, TN 37932
Phone (776) 641-1155
220 Athens Way
Ste 104
Nashville, TN 37228
Phone (615) 380-4725
Organizations & group practices 3
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Clinical Psychologist
- Nashville, TN
- NPI 1336292465
-
- Local Education Agency (LEA)
- Loudon, TN
- NPI 1114256039
-
- Rehabilitation Clinic/Center
- Maryville, TN
- NPI 1659466712
Clinical
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1513382400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1752019200000",
"number": "1124534912",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4799 PALMBROOKE CIR",
"city": "WEST PALM BEACH",
"state": "FL",
"postal_code": "334177534",
"telephone_number": "561-876-8751"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2030 CHILHOWEE MEDICAL PARK",
"city": "MARYVILLE",
"state": "TN",
"postal_code": "378045285",
"telephone_number": "865-982-3400",
"fax_number": "865-238-2034"
}
],
"practiceLocations": [
{
"address_1": "4799 Palmbrooke Cir",
"address_purpose": "LOCATION",
"city": "West Palm Beach",
"state": "FL",
"postal_code": "334177534",
"country_code": "US",
"telephone_number": "561-876-8751",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "10133 Sherrill Blvd Ste 220",
"address_purpose": "LOCATION",
"city": "Knoxville",
"state": "TN",
"postal_code": "379323775",
"country_code": "US",
"telephone_number": "615-320-1155",
"fax_number": "615-320-1177",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "GRINN",
"first_name": "EXTASY",
"credential": "LCSW, CAP. ICADC",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2017-12-16",
"last_updated": "2025-07-09",
"certification_date": "2025-07-09",
"status": "A"
},
"taxonomies": [
{
"code": "101YA0400X",
"taxonomy_group": "",
"desc": "Counselor, Addiction (Substance Use Disorder)",
"state": "FL",
"license": "ADC-003288-2014",
"primary": false
},
{
"code": "104100000X",
"taxonomy_group": "",
"desc": "Social Worker",
"state": "TN",
"license": "7341",
"primary": false
},
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "FL",
"license": "SW14806",
"primary": false
},
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "TN",
"license": "7341",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Maryville, TN
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 9, 2025; 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.