Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ellen Catherine Bonczyk-Duce, PT

Physical Therapist in Chelsea, MI · enumerated 2018.

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

National Provider Identifier

1780172221

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ellen Catherine Bonczyk-Duce

Credential PT

Sex Female

Practice address 775 S Main St, Chelsea, MI, 48118

Phone (734) 593-5600

Enumeration date Apr 30, 2018

Last updated in NPPES Apr 30, 2018

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 5501003616 (MI) Primary

PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Ellen Bonczyk-Duce?

Ellen Bonczyk-Duce is registered in NPPES with the primary taxonomy of Physical Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-04-30.