Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mallory Annette Massengill, OTR/L

Occupational Therapist in Cleveland, TN · enumerated 2023.

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

National Provider Identifier

1750156618

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Registry record

Entity type Individual (Type 1)

Name Mrs. Mallory Annette Massengill

Credential OTR/L

Sex Female

Practice address 294 Helmshurst Ln Se, Cleveland, TN, 37323

Phone (423) 903-0640

Enumeration date Nov 21, 2023

Last updated in NPPES Nov 21, 2023

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 4427 (TN) Primary

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 is the NPI number for Mallory Massengill?

The National Provider Identifier (NPI) for Mallory Massengill is 1750156618, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mallory Massengill practice?

The practice location on file with NPPES is in Cleveland, TN. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-21.