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Maroun E Hayek, MD

Hematology & Oncology Physician in Greenville, MS · enumerated 2006.

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

National Provider Identifier

1922072891

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Registry record

Entity type Individual (Type 1)
Name Maroun E Hayek
Credential MD
Sex Male
Practice address 1514 E Union St, Greenville, MS, 38703
Phone (662) 334-6394
Fax (662) 332-1647
Enumeration date Feb 15, 2006
Last updated in NPPES Apr 16, 2014

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 16611 (MS) 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
00123081 Medicaid MS -
129581001 Medicaid AR -

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

Where does Maroun Hayek practice?
The practice location on file with NPPES is in Greenville, MS. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Maroun Hayek?
The National Provider Identifier (NPI) for Maroun Hayek is 1922072891, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-04-16.