NPI Portal NPI Lookup & Verification

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

Joan Theresa Warren, MHS, OTR L

Occupational Therapist in Orange Park, FL · enumerated 2007 · practices at Functional Kids Therapy LLC.

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

National Provider Identifier

1366588006

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Joan Theresa Warren
Credential MHS, OTR L
Sex Female
Practice address Orange Park, FL, 32065
Phone (904) 838-0800
Enumeration date Jan 29, 2007
Last updated in NPPES Nov 1, 2010

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 OT9446 (FL) Primary

Other identifiers

Identifier Type State Issuer
891602100 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 Joan Warren?
The National Provider Identifier (NPI) for Joan Warren is 1366588006, a Type 1 (individual) record in the CMS NPPES registry.
Where does Joan Warren practice?
The practice location on file with NPPES is in Orange Park, FL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-01.