Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Justin Slis

General Practice Dentistry in Hancock, MI · enumerated 2016 · practices at Upper Great Lakes Family Health Center.

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

National Provider Identifier

1932652005

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Registry record

Entity type Individual (Type 1)

Name Dr. Justin Slis

Sex Male

Practice address 1550 W Quincy St, Hancock, MI, 49930

Phone (906) 482-3621

Enumeration date Jul 25, 2016

Last updated in NPPES Jul 25, 2016

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 2901022049 (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.

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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 Justin Slis?

Justin Slis is registered in NPPES with the primary taxonomy of General Practice Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-07-25.