Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Extasy Grinn, LCSW, CAPICADC

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1124534912

Extasy Grinn, LCSW, CAPICADC is a Clinical Social Worker in Maryville, Tennessee. Graduated from Florida Atlantic University, College of Medicine in 2015, 11 years ago. Practices with Athena Consulting and Psychological Services, PLLC, a 60-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Florida and Tennessee.

Years since qualifying
11
Trained at
Florida Atlantic University, College of Medicine
Licensed in
FL, TN
In the registry since
2017
Specialties on file
4
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

See every abbreviation used in this directory →

Practice location Address checks out

2030 Chilhowee Medical Park
Maryville, TN 37804-5285
Phone: (865) 982-3400
Fax: (865) 238-2034
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 4799 Palmbrooke Cir, West Palm Beach, FL 33417-7534 — (561) 876-8751
  • 10133 Sherrill Blvd Ste 220, Knoxville, TN 37932-3775 — (615) 320-1155

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 7341 (TN)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence ADC-003288-2014 (FL)
Social Worker Taxonomy 104100000X · Licence 7341 (TN)
Clinical Social Worker Taxonomy 1041C0700X · Licence SW14806 (FL)

Record details

NPI number1124534912
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW , CAPICADC
Sole proprietorYes
NPI enumeratedDecember 16, 2017
Last updated in NPPESJuly 9, 2025
Certification dateJuly 9, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolFLORIDA ATLANTIC UNIVERSITY, COLLEGE OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Athena Consulting And Psychological Services, Pllc — 60 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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