Ari Leonard Ginsberg, M.D.
Hematology & Oncology Physician · New Hyde Park, NY
Ari Leonard Ginsberg, M.D. is a hematology & oncology physician with a practice address in New Hyde Park, New York, and NPI 1184628059, issued on Jun 9, 2005. Check the license (New York 21154, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Ari Leonard Ginsberg
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 21154 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1999 Marcus Ave Ste 306, New Hyde Park, NY 11042
- Phone
- (516) 467-8600
- Enumerated
- Jun 9, 2005
- Record last updated
- Mar 25, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20101208000307); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 1997
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 1999 Marcus Ave Ste 306
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Klaus Dittmar, M.D.Hematology & Oncology Physician1245239664
- Gerard Donnelly, M.D.Hematology & Oncology Physician1518966944
- Rosemary Fine, NPNurse Practitioner1558870162
- Richard Forte, M.D.Hematology & Oncology Physician1891794210
- Amanda GambinoClinical Social Worker1063356434
- William Given, MDRheumatology Physician1447329305
Verify Ari Leonard Ginsberg 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 21154Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
644 Medicare Part D claims for 100 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 41% of claims.
Most prescribed
- Hydroxyurea61 claims
- Acyclovir53 claims
- Imbruvica40 claims
- Allopurinol37 claims
- Letrozole32 claims
- Jakafi27 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 practice group's MIPS final score for 2023 (Medicare payment program): 84.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- New York UniversityNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hematology & Oncology Physician providers in New York
There are 1,163 hematology & oncology physician records in New York.
Other hematology & oncology physician records in New York
- Anum Aamir, M.DAstoria, NY1245611052
- Mohammad Maher Abdul Hay, MDNew York, NY1447494729
- Wassim Abida, MD, PHDNew York, NY1518101096
- Mouhamed Yazan Abou-Ismail, M.D.Rochester, NY1336553676
- George Abraham, MDRochester, NY1225552649
- Avram Abramowitz, M.D.Fresh Meadows, NY1407855489
- Ghaith Abu Zeinah, M.D.New York, NY1174962146
- Jose Acostamadiedo, MDPlattsburgh, NY1013910256
- Sylvia Adams, MDNew York, NY1881767903
- Amit Agarwal, M.D.New York, NY1275790826
Common questions
What is Ari Leonard Ginsberg, M.D.'s NPI number?
Ari Leonard Ginsberg, M.D.'s National Provider Identifier (NPI) is 1184628059, issued on Jun 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ari Leonard Ginsberg, M.D. located?
The NPPES record lists a practice address at 1999 Marcus Ave Ste 306, New Hyde Park, NY, 11042. Phone: (516) 467-8600. Providers update this record themselves, so call before visiting.
How can I verify Ari Leonard Ginsberg, M.D.'s license?
NPPES lists New York license number 21154, 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 Ari Leonard Ginsberg, M.D. prescribe under Medicare Part D?
In 2024, Ari Leonard Ginsberg, M.D. had 644 Medicare Part D claims for 100 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Ari Leonard Ginsberg, M.D.'s MIPS final score?
The 2023 MIPS final score is 84.5 of 100, reported for the practice group. 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.