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

Niesha Williams Collor, PLPC

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1447860978

Niesha Williams Collor, PLPC is an Addiction (Substance Use Disorder) Counselor in Gretna, Louisiana. Practices as a sole proprietor and works from 2 locations. Licensed in Louisiana.

Licensed in
LA
In the registry since
2020
Specialties on file
3

Practice location Address checks out

1141 Whitney Ave
Gretna, LA 70056-5011
Phone: (504) 484-2858
Show map & directions

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

Additional practice locations (1)

  • 4035 Washington Ave, New Orleans, LA 70125-2935 — (504) 358-5408

Specialties & licences

Professional Counselor (primary) Taxonomy 101YP2500X · Licence PLC8299 (LA)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence PLC8299 (LA)
Case Manager/Care Coordinator Taxonomy 171M00000X · Licence PLC8299 (LA)

Record details

NPI number1447860978
Entity typeIndividual (Type 1)
GenderFemale
Credentials PLPC
Sole proprietorYes
NPI enumeratedAugust 10, 2020
Last updated in NPPESJuly 23, 2025
Certification dateJuly 23, 2025
Mailing addressPo Box 305, Marrero, LA 70073-0305

Other providers in Gretna