Roger S. Keresztes, MD
Hematology & Oncology Physician · Stony Brook, NY
Roger S. Keresztes, MD is a hematology & oncology physician with a practice address in Stony Brook, New York, and NPI 1770638868, issued on Jan 25, 2007. Check the license (New York 180051, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Roger S. Keresztes
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 180051 NY
Self-reported in NPPES; status is on the state search - Practice location
- 3 Edmund Pellegrino RD, Stony Brook, NY 11794
- Phone
- (631) 638-1000
- Enumerated
- Jan 25, 2007
- Record last updated
- Apr 12, 2022
- Fax
- (631) 444-7530
- Medicare enrollment
- Enrolled (PECOS I20070409000632); accepts Medicare assignment
- Medical or professional school
- Rutgers New Jersey Medical School, 1987
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,163 in New York → Look up another NPI →
Also registered at 3 Edmund Pellegrino RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lilande Beausoleil, NPAdult Health Nurse Practitioner1912024951
- Cindy Lee, M.D.Diagnostic Radiology Physician1427292978
Verify Roger S. Keresztes 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 180051Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
543 Medicare Part D claims for 97 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 98 claims were for opioids.
Most prescribed
- Levothyroxine Sodium50 claims
- Ondansetron Hcl44 claims
- Oxycodone Hcl44 claims
- Tagrisso32 claims
- Mirtazapine25 claims
- Oxycodone-Acetaminophen20 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 98.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $55.34
2 payments; by number, the most common kind was food and beverage; the largest payer was Genentech USA, Inc. The 8,560 providers of this specialty with any payment received $7,481.41 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.
Bills Medicare through one group practice
- Stony Brook Internists University Faculty Practice CorporationStony Brook, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Roger S. Keresztes among 1,163 hematology & oncology physician records in New York
Roger S. Keresztes, MD is one of 1,163 hematology & oncology physician records with a practice address in New York. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 44% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1987 · median 2002 among the 833 with a school on file
- Record last updated2022 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
24 hematology & oncology physician records list a practice address in Stony Brook
They are 24 of the 3,053 NPPES records with a practice address in Stony Brook, and 1,163 hematology & oncology physician records in New York.
All 1,163 in New York → Every provider in Stony Brook → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Crystal Antoine Pepeljugoski, M.D.Stony Brook, NY 117941073856357
- Lea Baer, MDStony Brook, NY 117941609037514
- Harold Bien, PH.D., M.D.Stony Brook, NY 117941902049257
- Jules Cohen, M.D.Stony Brook, NY 117941215112289
- Theodore Gabig, M.D.Stony Brook, NY 117941538194360
- Julie Anne Gemmill, DO, MSStony Brook, NY 117941619313160
- Achuta Guddati, MDStony Brook, NY 117941457639312
- Yusuf Hannun, M.D.Stony Brook, NY 117941336413319
Common questions
What is Roger S. Keresztes, MD's NPI number?
Roger S. Keresztes, MD's National Provider Identifier (NPI) is 1770638868, issued on Jan 25, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Roger S. Keresztes, MD located?
The NPPES record lists a practice address at 3 Edmund Pellegrino RD, Stony Brook, NY, 11794. Phone: (631) 638-1000. Providers update this record themselves, so call before visiting.
How can I verify Roger S. Keresztes, MD's license?
NPPES lists New York license number 180051, 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.
How much does Roger S. Keresztes, MD prescribe under Medicare Part D?
In 2024, Roger S. Keresztes, MD had 543 Medicare Part D claims for 97 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Roger S. Keresztes, MD's MIPS final score?
The 2023 MIPS final score is 98.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.