1. Home
  2. Directory
  3. Missouri
  4. O Fallon
  5. Counselor
  6. NPI Profile

LESLIE A WISS MA, LPC
NPI 1225340300
Counselor in O Fallon, MO

Active since July 06, 2010
1555 TEA PARTY LN, O FALLON, MO 63366(314) 458-3836 Get Directions Write a Review

NPPES record last updated: October 9, 2025. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Oct 9, 2025, Mar 17, 2016 (2 updates tracked since 2016).

About Leslie A Wiss Ma, Lpc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LESLIE A WISS MA, LPC (NPI 1225340300) is an individual counselor in O Fallon, Missouri, licensed in Missouri (2010017636) and active in the NPI registry since July 2010.

NPPES Registry Identity

NPI1225340300
Entity TypeIndividualFemale
Primary Taxonomy101Y00000X
Provider Legal NameLESLIE A WISSCredential: MA, LPC
Location Address1555 TEA PARTY LNO Fallon, MO 63366-5519
Mailing Address1555 Tea Party LnO Fallon, MO 63366-5519 · (314) 458-3836
Phone(314) 458-3836
Sole ProprietorYes
Enumeration DateJuly 6, 2010
Last NPPES UpdateOctober 9, 20252 updates tracked since enumeration
NPPES CertifiedOctober 9, 2025
✔ NPI 1225340300 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselorBehavioral Health & Social Service Providers
Taxonomy Code101Y00000X
License✔ Licensed in MO · 2010017636
Definition
A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.
1555 TEA PARTY LN, O Fallon, MO 63366
Open in Google Maps ↗

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Leslie Wiss's NPI number?

The NPI number for Leslie Wiss is 1225340300. It was assigned to this individual provider in the NPPES registry on July 6, 2010.

Where is Leslie Wiss located?

Leslie Wiss practices at 1555 Tea Party Ln, O Fallon, MO 63366. The listed phone number is (314) 458-3836.

What is Leslie Wiss's specialty?

The primary specialty registered for this NPI is Counselor with taxonomy code 101Y00000X.

When was this NPI record last updated?

The NPPES record for Leslie Wiss was last updated on October 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.