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Dr. Mahmut Yasar Celiker, M.D.

Pediatric Hematology & Oncology Physician in Stony Brook, NY · enumerated 2006.

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

National Provider Identifier

1396782678

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Registry record

Entity type Individual (Type 1)
Name Dr. Mahmut Yasar Celiker
Credential M.D.
Sex Male
Practice address University Hospital, L5, Stony Brook, NY, 11794
Phone (631) 444-7720
Enumeration date Jun 2, 2006
Last updated in NPPES Apr 7, 2009

Taxonomy & licenses

2080P0207X Pediatric Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 235607 (NY) 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
8E3881 Other NY EMPIRE BC.BS
02694159 Medicaid NY -
7762759 Other NY AETNA

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 Mahmut Celiker?
The National Provider Identifier (NPI) for Mahmut Celiker is 1396782678, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mahmut Celiker practice?
The practice location on file with NPPES is in Stony Brook, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-04-07.