Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Melissa Marie Walker, OT

Pediatric Occupational Therapist in Denison, TX · enumerated 2017.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1104356278

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Registry record

Entity type Individual (Type 1)

Name Melissa Marie Walker

Credential OT

Sex Female

Practice address 2300 W Morton St Ste 114, Denison, TX, 75020

Phone (903) 462-4085

Fax (903) 465-5533

Enumeration date Jun 12, 2017

Last updated in NPPES Jul 21, 2022

Taxonomy & licenses

225XP0200X Pediatric Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 106266 (TX) Primary

OT · Occupational Therapist: A licensed therapist helping patients develop or recover skills for daily living and working. About the OT credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Melissa Walker?

Melissa Walker is registered in NPPES with the primary taxonomy of Pediatric Occupational Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.