Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William B. Keskimaki, D.D.S.

General Practice Dentistry in Alpena, MI · enumerated 2006.

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

National Provider Identifier

1417935198

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Registry record

Entity type Individual (Type 1)

Name Dr. William B. Keskimaki

Credential D.D.S.

Sex Male

Practice address 330 Long Rapids Plz, Alpena, MI, 49707

Phone (989) 356-0191

Fax (989) 354-9159

Enumeration date Jan 4, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 015331 (MI) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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

What is the NPI number for William Keskimaki?

The National Provider Identifier (NPI) for William Keskimaki is 1417935198, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Keskimaki practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.