NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William J Polinski, DO PHD FACC

Interventional Cardiology Physician in Ontario, OH · enumerated 2006.

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

National Provider Identifier

1104897990

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name William J Polinski
Credential DO PHD FACC
Sex Male
Practice address 715 Richland Mall, Ontario, OH, 44906
Fax (419) 462-4609
Enumeration date Jan 30, 2006
Last updated in NPPES Feb 4, 2021

Taxonomy & licenses

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License 34.003540 (OH) Primary

Other identifiers

Identifier Type State Issuer
0618086 Medicaid OH -

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 Polinski?
The National Provider Identifier (NPI) for William Polinski is 1104897990, a Type 1 (individual) record in the CMS NPPES registry.
Where does William Polinski practice?
The practice location on file with NPPES is in Ontario, OH. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-04.