Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Jennifer L Messier, OTR/L

Occupational Therapist in Crystal River, FL · enumerated 2008 · practices at O. T. 4 Kids, Inc.

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

National Provider Identifier

1891966354

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Registry record

Entity type Individual (Type 1)

Name Jennifer L Messier

Credential OTR/L

Sex Female

Practice address Crystal River, FL, 34429

Phone (352) 795-5552

Fax (352) 795-7751

Enumeration date Mar 12, 2008

Last updated in NPPES Feb 24, 2017

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OT 13020 (FL) Primary

Other identifiers

Identifier	Type	State	Issuer
892794400	Medicaid	FL	-

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 Jennifer Messier?

The National Provider Identifier (NPI) for Jennifer Messier is 1891966354, a Type 1 (individual) record in the CMS NPPES registry.

Where does Jennifer Messier practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-24.