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Dr. Ayser Y Hassan, PHARMD

Pharmacist in Chicago, IL · enumerated 2011.

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

National Provider Identifier

1568743938

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Registry record

Entity type Individual (Type 1)
Name Dr. Ayser Y Hassan
Credential PHARMD
Sex Male
Practice address 111 S Halsted St, Chicago, IL, 60661
Phone (312) 463-9142
Enumeration date Aug 30, 2011
Last updated in NPPES Aug 30, 2011

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 051291343 (IL) Primary
PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD 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 specialty is Ayser Hassan?
Ayser Hassan is registered in NPPES with the primary taxonomy of Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-08-30.