Mahmut Yasar Celiker, M.D.
Pediatric Hematology & Oncology Physician · Stony Brook, NY
Mahmut Yasar Celiker, M.D. is a pediatric hematology & oncology physician with a practice address in Stony Brook, New York, and NPI 1396782678, issued on Jun 2, 2006. Check the license (New York 235607, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Mahmut Yasar Celiker
- Credential
- M.D.
- Primary taxonomy
- Pediatric Hematology & Oncology Physician 2080P0207X
- License number
- 235607 NY
Self-reported in NPPES; status is on the state search - Practice location
- University Hospital, L5, Stony Brook, NY 11794
- Phone
- (631) 444-7720
- Enumerated
- Jun 2, 2006
- Record last updated
- Apr 7, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicaid ID
- 02694159 NY
- Entity
- Type 1 · individual
Also registered at University Hospital, L5
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Wadie Bahou, M.D.Hematology (Internal Medicine) Physician1891720702
- Thomas Bilfinger, M.D.Surgery Physician1780602730
- Anupama Chawla, M.D.Pediatric Gastroenterology Physician1134162936
- Maribeth Chitkara, M.D.Pediatrics Physician1588606412
- Janet Difalco, N.P.Nurse Practitioner1356384168
- Janet Fischel, PH.D.Clinical Psychologist1891738217
Verify Mahmut Yasar Celiker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 235607Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $191.60
4 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 1,215 providers of this specialty with any payment received $7,404.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Pediatric Hematology & Oncology Physician providers in New York
There are 289 pediatric hematology & oncology physician records in New York.
Other pediatric hematology & oncology physician records in New York
- Cori Abikoff, MDValhalla, NY1235330283
- Suchitra Acharya, MDNew York, NY1871683052
- Olubunmi Afonja, MB, BSNew York, NY1194719492
- Manpreet Ahluwalia, M.D.Bronx, NY1477751147
- Opeyemi Ajibade, M.D.Bronx, NY1386176915
- Alexander Aledo, M.D.Flushing, NY1548235625
- Jeffrey Allen, MDNew York, NY1154397727
- Abdullrahman Alsultan, MBBSNew York, NY1144305376
- Srikanth Ambati, M.DNew York, NY1295977981
- Steven Ambrusko, MDBuffalo, NY1205047461
Common questions
What is Mahmut Yasar Celiker, M.D.'s NPI number?
Mahmut Yasar Celiker, M.D.'s National Provider Identifier (NPI) is 1396782678, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mahmut Yasar Celiker, M.D. located?
The NPPES record lists a practice address at University Hospital, L5, Stony Brook, NY, 11794. Phone: (631) 444-7720. Providers update this record themselves, so call before visiting.
How can I verify Mahmut Yasar Celiker, M.D.'s license?
NPPES lists New York license number 235607, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.