Reuven Z. Grossman, MD
Radiation Oncology Physician · Bronx, NY
Reuven Z. Grossman, MD is a radiation oncology physician with a practice address in Bronx, New York, and NPI 1841457959, issued on May 19, 2008. Check the license (New York 239248, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Reuven Z. Grossman
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 239248 NY
Self-reported in NPPES; status is on the state search - Practice location
- 2330 Eastchester RD, Bronx, NY 10469
- Phone
- (718) 732-4000
- Enumerated
- May 19, 2008
- Record last updated
- Jan 17, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (718) 881-0091
- Medicare enrollment
- Enrolled (PECOS I20091120000297); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 2004
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 449 in New York → Look up another NPI →
Also registered at 2330 Eastchester RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Faraz Afridi, MDHospice and Palliative Medicine (Internal Medicine) Physician1477049450
- Tong Dai, M.D., PH.D.Medical Oncology Physician1841454741
- Ivan Gordon, R.PH.Pharmacist1780907832
- Jacob LevensonHematology & Oncology Physician1497382717
- Barbara MatallanaFamily Nurse Practitioner1265858583
- Jason Naziri, MDRadiation Oncology Physician1770074981
Verify Reuven Z. Grossman 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 239248Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% fewer Medicare Part D claims than the average radiation oncology physician in 2024
91 Medicare Part D claims for 32 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl70 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.
Bills Medicare through one group practice
- North Shore Hematology Oncology Associates PCBronx, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Reuven Z. Grossman among 449 radiation oncology physician records in New York
Reuven Z. Grossman, MD is one of 449 radiation 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 2008, is newer than 54% of them.
- NPI issued2008 · 54% of these records are older, 42% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2004 · median 2005 among the 331 with a school on file
- Record last updated2020 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in New York
There are 449 radiation oncology physician records in New York.
All 449 in New York → Every provider in Bronx → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Jason Naziri, MDBronx, NY 104691770074981
- Alice Cheuk, M.D.Bronx, NY 104681417151341
- Niki Sheth, MDBronx, NY 104681225410483
- Madhur Garg, MDBronx, NY 104671215018643
- Chandan Guha, MDBronx, NY 104671093917924
- Rafi KabarritiBronx, NY 104671811200256
- Jonathan KleinBronx, NY 104671124540216
- Nicola Nasser, MD, PHDBronx, NY 104671023548831
Common questions
What is Reuven Z. Grossman, MD's NPI number?
Reuven Z. Grossman, MD's National Provider Identifier (NPI) is 1841457959, issued on May 19, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Reuven Z. Grossman, MD located?
The NPPES record lists a practice address at 2330 Eastchester RD, Bronx, NY, 10469. Phone: (718) 732-4000. Providers update this record themselves, so call before visiting.
How can I verify Reuven Z. Grossman, MD's license?
NPPES lists New York license number 239248, 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 Reuven Z. Grossman, MD prescribe under Medicare Part D?
In 2024, Reuven Z. Grossman, MD had 91 Medicare Part D claims for 32 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
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.