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

Dianna Sue Hill, COTAL

Q: What is the NPI number for Dianna Hill?

The National Provider Identifier (NPI) for Dianna Hill is 1215781042, a Type 1 (individual) record in the CMS NPPES registry.

Gerontology Occupational Therapist in Fort Gratiot, MI · enumerated 2024 · practices at Regency on the Lake-Fort Gratiot, LLC.

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

National Provider Identifier

1215781042

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Registry record

Entity type Individual (Type 1)

Name Dianna Sue Hill

Credential COTAL

Sex Female

Practice address Fort Gratiot, MI, 48059

Phone (810) 385-7260

Enumeration date Apr 17, 2024

Last updated in NPPES Apr 17, 2024

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

Taxonomy & licenses

225XG0600X Gerontology Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 5202007321 (MI) 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 Dianna Hill?

The National Provider Identifier (NPI) for Dianna Hill is 1215781042, a Type 1 (individual) record in the CMS NPPES registry.

Where does Dianna Hill practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-17.