Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Fred Polito, M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Elgin, IL · enumerated 2006.

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

National Provider Identifier

1992744288

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Registry record

Entity type Individual (Type 1)

Name Dr. William Fred Polito

Credential M.D.

Sex Male

Practice address 1435 N Randall Rd Ste 210, Elgin, IL, 60123

Phone (847) 695-1620

Fax (888) 990-2186

Enumeration date Jun 5, 2006

Last updated in NPPES Dec 17, 2021

Taxonomy & licenses

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 036116188 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
036116188	Medicaid	IL	-

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 Polito?

The National Provider Identifier (NPI) for William Polito is 1992744288, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Polito practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-17.