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

Sierra Koester, LPC

Individual provider Mental Health Counselor · NPI 1669213633

Sierra Koester, LPC is a Mental Health Counselor in O Fallon, Missouri. Practices as a sole proprietor. Licensed in Missouri.

Licensed in
MO
In the registry since
2024
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

1001 Boardwalk Springs Pl
O Fallon, MO 63368-4778
Phone: (636) 655-0960
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence 2022020366 (MO)

Record details

NPI number1669213633
Entity typeIndividual (Type 1)
GenderFemale
Credentials LPC
Sole proprietorYes
NPI enumeratedJune 4, 2024
Last updated in NPPESJune 4, 2024
Certification dateJune 4, 2024
Mailing address1001 Boardwalk Springs Pl, O Fallon, MO 63368-4778

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