John David Klement, MD, PHD
Hematology & Oncology Physician · New York, NY
John David Klement, MD, PHD is a hematology & oncology physician with a practice address in New York, New York, and NPI 1679223192, issued on Mar 27, 2022. Check the license (New York 329318, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- John David Klement
- Credential
- MD, PHD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 329318 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1275 York Ave, New York, NY 10065
- Phone
- (646) 632-9223
- Enumerated
- Mar 27, 2022
- Record last updated
- Dec 27, 2024
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,163 in New York → Look up another NPI →
Also registered at 1275 York Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nivedita Aanur, M.D.Internal Medicine Physician1982833471
- Amy Aaronson, AC-PNP, RNCritical Care Pediatric Nurse Practitioner1407323504
- Michelle Abboud, N.P.Acute Care Nurse Practitioner1730596008
- Gina Abdulahad, PA-CPhysician Assistant1174027064
- Wassim Abida, MD, PHDHematology & Oncology Physician1518101096
- Lincy Abraham, NPPediatric Nurse Practitioner1295003739
Verify John David Klement 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 329318Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
210 Medicare Part D claims for 68 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium12 claims
- Amlodipine Besylate11 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.
John David Klement among 1,163 hematology & oncology physician records in New York
John David Klement, MD, PHD 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 2022, is newer than 97% of them.
- NPI issued2022 · 97% of these records are older, 2% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2024 · 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 New York → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Massimo Cristofanilli, M.D.New York, NY 100651891880563
- James Fetten, M.D.New York, NY 100651811966435
- Richard Geltman, MDNew York, NY 100651659362242
- Sergio Giralt, M.D.New York, NY 100651639278880
- Ross Levine, MDNew York, NY 100651225011091
- Raymond Pastore, M.D.New York, NY 100651124027487
- Jacob Rand, MDNew York, NY 100651164531828
- Charles Rudin, M.D., PH.D.New York, NY 100651467483404
Common questions
What is John David Klement, MD, PHD's NPI number?
John David Klement, MD, PHD's National Provider Identifier (NPI) is 1679223192, issued on Mar 27, 2022. An NPI identifies a provider in billing; it is not a license.
Where is John David Klement, MD, PHD located?
The NPPES record lists a practice address at 1275 York Ave, New York, NY, 10065. Phone: (646) 632-9223. Providers update this record themselves, so call before visiting.
How can I verify John David Klement, MD, PHD's license?
NPPES lists New York license number 329318, 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 John David Klement, MD, PHD prescribe under Medicare Part D?
In 2024, John David Klement, MD, PHD had 210 Medicare Part D claims for 68 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.