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

Sierra Marshall, LPC

Individual provider Counselor · NPI 1790428324

Sierra Marshall, LPC is a Counselor in Avondale, Arizona. Licensed in Arizona. Registered with an NPI since 2022.

Licensed in
AZ
In the registry since
2022
Specialties on file
2
What do these letters mean?
LPC — Licensed Professional Counselor
A licensed mental health counsellor.

See every abbreviation used in this directory →

Practice location Address checks out

235 W Western Ave
Avondale, AZ 85323-1848
Phone: (602) 230-7373
Fax: (602) 230-3086
Show map & directions

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

Specialties & licences

Counselor (primary) Taxonomy 101Y00000X · Licence LPC-21745 (AZ)
Counselor Taxonomy 101Y00000X · Licence LAC-19024 (AZ)

Record details

NPI number1790428324
Entity typeIndividual (Type 1)
GenderFemale
Credentials LPC
Sole proprietorNo
NPI enumeratedApril 20, 2022
Last updated in NPPESOctober 19, 2023
Certification dateOctober 19, 2023
Mailing address3101 N Central Ave Ste 550, Phoenix, AZ 85012-2635

Other providers in Avondale