Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MARY A WALKER LPC
NPI 1326407644
Counselor - Professional in Katy, TX

Active since February 15, 2016
602 W GRAND PKWY S, KATY, TX 77494(855) 417-2486 Get Directions Write a Review

NPPES record last updated: July 21, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 21, 2026, Feb 15, 2016 (2 updates tracked since 2016).

About Mary A Walker Lpc NPPES

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

MARY A WALKER LPC (NPI 1326407644) is an individual professional provider in Katy, Texas, licensed in Texas (71329) and active in the NPI registry since February 2016.

NPPES Registry Identity

NPI1326407644
Entity TypeIndividualFemale
Primary Taxonomy101YP2500X
Provider Legal NameMARY A WALKERCredential: LPC
Location Address602 W GRAND PKWY SKaty, TX 77494-8328
Mailing Address602 W Grand Pkwy SKaty, TX 77494-8328 · (855) 417-2486
Sole ProprietorYes
Enumeration DateFebruary 15, 2016
Last NPPES UpdateJuly 21, 20262 updates tracked since enumeration
NPPES CertifiedJuly 21, 2026
NPI 1326407644 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
License Licensed in TX · 71329
602 W GRAND PKWY S, Katy, TX 77494

Other Names 1

Professional Name (2)Maryanne Walker Lpc

Accepted Insurance

Other Providers at the Same Location NPPES 14

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

Nurse Practitioner (Family)
602 W GRAND PKWY S
KATY, TX 77494
Social Worker (Clinical)
602 W GRAND PKWY S
KATY, TX 77494
Pharmacist
602 W GRAND PKWY S
KATY, TX 77494
Pharmacist
602 W GRAND PKWY S
KATY, TX 77494
Nurse Practitioner (Family)
602 W GRAND PKWY S
KATY, TX 77494
Pharmacist
602 W GRAND PKWY S
KATY, TX 77494
Social Worker (Clinical)
602 W GRAND PKWY S
KATY, TX 77494
Nurse Practitioner (Family)
602 W GRAND PKWY S
KATY, TX 77494

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 Mary Walker's NPI number?

The NPI number for Mary Walker is 1326407644. It was assigned to this individual provider in the NPPES registry on February 15, 2016. The provider is also known as Maryanne Walker Lpc.

Where is Mary Walker located?

Mary Walker practices at 602 W Grand Pkwy S, Katy, TX 77494. The listed phone number is (855) 417-2486.

What is Mary Walker's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

What insurance does Mary Walker accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Molina Healthcare and UnitedHealthcare list Mary Walker as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mary Walker was last updated on July 21, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.