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

William Hal Decker, O.T.

Occupational Therapist in Ocala, FL · enumerated 2007.

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

National Provider Identifier

1093915969

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Registry record

Entity type Individual (Type 1)

Name William Hal Decker

Credential O.T.

Sex Male

Practice address Ocala, FL, 34470

Phone (352) 236-1730

Enumeration date Jul 19, 2007

Last updated in NPPES Jul 19, 2007

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 OT8737 (FL) 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

Where does William Decker practice?

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

What is the NPI number for William Decker?

The National Provider Identifier (NPI) for William Decker is 1093915969, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-19.