Julia Mandelblat, M.D.
Hematology & Oncology Physician · Great Neck, NY
Julia Mandelblat, M.D. is a hematology & oncology physician with a practice address in Great Neck, New York, and NPI 1821297227, issued on Jul 16, 2007. Check the license (New York 232644, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Julia Mandelblat
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 232644 NY
Self-reported in NPPES; status is on the state search - Practice location
- 7 Stoner Ave, Great Neck, NY 11021
- Phone
- (917) 601-0824
- Enumerated
- Jul 16, 2007
- Record last updated
- Jul 16, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,163 in New York → Look up another NPI →
Verify Julia Mandelblat 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 232644Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
131 Medicare Part D claims for 36 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Letrozole25 claims
- Exemestane18 claims
- Prednisone16 claims
- Abiraterone Acetate12 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.
Julia Mandelblat among 1,163 hematology & oncology physician records in New York
Julia Mandelblat, M.D. 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 fileNo · 72% of these records are
- Record last updated2007 · 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).
Hematology & Oncology Physician providers in New York
There are 1,163 hematology & oncology physician records in New York.
All 1,163 in New York → Every provider in Great Neck → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Fakhiuddin Ahmed, M.D.Great Neck, NY 110211770514622
- Ivan Bergstein, M.D.Great Neck, NY 110211043397839
- Hal Gerstein, MDGreat Neck, NY 110211790874121
- Rita Weiss, M.D.,PH.D.Great Neck, NY 110211578566089
- Athena Kritharis, MDManhasset, NY 110301598907982
- Jonathan MaciasManhasset, NY 110301689105207
- Sabeen Mekan, MDManhasset, NY 110301669683678
- Anju Ohri, MDManhasset, NY 110301902833304
Common questions
What is Julia Mandelblat, M.D.'s NPI number?
Julia Mandelblat, M.D.'s National Provider Identifier (NPI) is 1821297227, issued on Jul 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Julia Mandelblat, M.D. located?
The NPPES record lists a practice address at 7 Stoner Ave, Great Neck, NY, 11021. Phone: (917) 601-0824. Providers update this record themselves, so call before visiting.
How can I verify Julia Mandelblat, M.D.'s license?
NPPES lists New York license number 232644, 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 Julia Mandelblat, M.D. prescribe under Medicare Part D?
In 2024, Julia Mandelblat, M.D. had 131 Medicare Part D claims for 36 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.