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Ammar Hayani, MD

Pediatric Hematology & Oncology Physician in Winfield, IL · enumerated 2006.

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

National Provider Identifier

1689737348

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Registry record

Entity type Individual (Type 1)
Name Ammar Hayani
Credential MD
Sex Male
Practice address 25 N Winfield Rd, Winfield, IL, 60190
Phone (630) 933-4291
Fax (630) 933-4225
Enumeration date Dec 17, 2006
Last updated in NPPES May 11, 2017

Taxonomy & licenses

2080P0207X Pediatric Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 036082406 (IL) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

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Frequently asked questions

What is the NPI number for Ammar Hayani?
The National Provider Identifier (NPI) for Ammar Hayani is 1689737348, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ammar Hayani practice?
The practice location on file with NPPES is in Winfield, IL. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-05-11.