MARK EDWARD WALLS JR. LCDC
NPI 1174476089
Counselor - Addiction (Substance Use Disorder) in Killeen, TX

Q: What is Mark Walls's NPI number?

The NPI number for Mark Walls is 1174476089. It was assigned to this individual provider in the NPPES registry on February 19, 2026.

Q: What is Mark Walls's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

Q: When was this NPI record last updated?

The NPPES record for Mark Walls was last updated on February 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.

Active since February 19, 2026

4201 W STAN SCHLUETER LOOP, KILLEEN, TX 76549(254) 987-0405 Get Directions Write a Review

NPPES record last updated: February 19, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Mark Edward Walls Jr. Lcdc NPPES

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

MARK EDWARD WALLS JR. LCDC (NPI 1174476089) is an individual addiction (substance use disorder) provider in Killeen, Texas, licensed in Texas (17188) and active in the NPI registry since February 2026.

NPPES Registry Identity

NPI1174476089

Entity TypeIndividualMale

Primary Taxonomy101YA0400X

Provider Legal NameMARK EDWARD WALLS JR.Credential: LCDC

Location Address4201 W STAN SCHLUETER LOOPKilleen, TX 76549-4782

Mailing Address4008 Aransas DrBelton, TX 76513-7681 · (254) 987-0405

Phone(254) 987-0405

Sole ProprietorNo

Enumeration DateFebruary 19, 2026

NPPES CertifiedFebruary 19, 2026

✔ NPI 1174476089 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers

Taxonomy Code101YA0400X

License✔ Licensed in TX · 17188

4201 W STAN SCHLUETER LOOP, Killeen, TX 76549

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Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. BRAD B EVANS, PLLC

Psychologist (Clinical)

4201 W STAN SCHLUETER LOOP, SUITE G
KILLEEN, TX 76549

Bell County (254) 252-3748

MRS. TOMMICA HEWLETT LMSW

Counselor (Mental Health)

4201 W STAN SCHLUETER LOOP
KILLEEN, TX 76549

Bell County (254) 987-0405

MRS. LISBETH NICHOLSON LPC-A, NCC

Counselor (Mental Health)

4201 W STAN SCHLUETER LOOP
KILLEEN, TX 76549

Bell County (254) 987-0405

CATHERINE DUTTINE LMSW

Social Worker

4201 W STAN SCHLUETER LOOP
KILLEEN, TX 76549

Bell County (254) 987-0405

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 Mark Walls's NPI number?

The NPI number for Mark Walls is 1174476089. It was assigned to this individual provider in the NPPES registry on February 19, 2026.

Where is Mark Walls located?

Mark Walls practices at 4201 W Stan Schlueter Loop, Killeen, TX 76549. The listed phone number is (254) 987-0405.

What is Mark Walls's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Mark Walls was last updated on February 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.