Roger S Keresztes, MD - Medicare Medical Oncology in Stony Brook, NY

Roger S Keresztes, MD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Stony Brook, New York. He went to Rutgers New Jersey Medical School and graduated in 1987 and has 37 years of diverse experience with area of expertise as Medical Oncology. He is a member of the group practice Stony Brook Internists University Faculty Practice Corporation and his current practice location is 3 Edmund Pellegrino Rd, Stony Brook, New York. You can reach out to his office (for appointments etc.) via phone at (631) 638-1000.

Roger S Keresztes is licensed to practice in New York (license number 180051) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1770638868.

Contact Information

Roger S Keresztes, MD
3 Edmund Pellegrino Rd,
Stony Brook, NY 11794-9447
(631) 638-1000
(631) 444-7530

Map and Direction




Physician's Profile

Full NameRoger S Keresztes
GenderMale
SpecialityMedical Oncology
Experience37 Years
Location3 Edmund Pellegrino Rd, Stony Brook, New York
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Roger S Keresztes attended and graduated from Rutgers New Jersey Medical School in 1987
  NPI Data:
  • NPI Number: 1770638868
  • Provider Enumeration Date: 01/25/2007
  • Last Update Date: 04/12/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 4183728751
  • Enrollment ID: I20070409000632

Medical Identifiers

Medical identifiers for Roger S Keresztes such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1770638868NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology 180051 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Suny/stony Brook University HospitalStony brook, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Stony Brook Internists University Faculty Practice Corporation9133019821362

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Roger S Keresztes allows following entities to bill medicare on his behalf.
Entity NameStony Brook Internists University Faculty Practice Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1295778371
PECOS PAC ID: 9133019821
Enrollment ID: O20040317000450

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Roger S Keresztes is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Roger S Keresztes, MD
3 Edmund Pellegrino Rd,
Stony Brook, NY 11794-9447

Ph: (631) 638-1000
Roger S Keresztes, MD
3 Edmund Pellegrino Rd,
Stony Brook, NY 11794-9447

Ph: (631) 638-1000

Reviews and Comments


Internal Medicine Doctors in Stony Brook, NY

Mohamed Hassan Kamel, MD
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Medicare: Medicare Enrolled
Practice Location: Stony Brook University Hospital 101 Nicolls Road, Stony Brook, NY 11794
Phone: 631-689-8333    
Narinder Singh, M.D.
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Practice Location: 101 Nicolls Rd, Stony Brook, NY 11794
Phone: 631-444-4000    
Dr. Andrzej Kudelka, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 3 Pellegrino Rd, Z8151, Stony Brook, NY 11794
Phone: 631-638-0910    Fax: 631-638-0195
Saverio J Barbera, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: Health Science Center Nicolls Road, T-16-080, Stony Brook, NY 11794
Phone: 631-444-3575    Fax: 631-444-1054
Dr. Richard Lin, M.D.
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: University Hospital, L5, Stony Brook, NY 11794
Phone: 631-444-2540    
Dr. Ajay Malhotra, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: Hsc L4 Rm 120, Stony Brook, NY 11794
Phone: 631-444-5400    Fax: 631-444-7538
Dr. John Anthony Savino Iii, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1320 Stony Brook Rd Bldg D, Stony Brook, NY 11790
Phone: 212-241-1653    Fax: 212-289-6393

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.