Dr. John David Klement, MD, PhD

  • New York, NY
  • Hematologist and oncologist
NPI1679223192
Part D claims, 2024
210
Publications
28
State license
1
Year NPI issued
2022
Practice address
1275 York Ave, New York, NY 10065-6007
Practice phone
Call (646) 632-9223
Professional email
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Personal email
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Mobile number
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Social profiles

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Dr. John David Klement is a hematologist and oncologist in New York, New York

Dr. Klement practices in New York, New York.

Dr. Klement's NPI, 1679223192, was assigned on March 27, 2022. Dr. Klement holds New York license 329318.

NPI and contact details
NPI enumeration date
March 27, 2022
NPI status
Active
Practice phone
(646) 632-9223
Professional email
Get email
Personal email
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Mobile number
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Sex
Male

Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data

Dr. John David Klement's practice address is in New York, New York

Dr. Klement's practice address in the NPI Registry is 1275 York Ave, New York, NY 10065-6007. The practice phone is (646) 632-9223.

  • NPI Registry address
    1275 York Ave, New York, NY 10065-6007Phone(646) 632-9223

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dmand AI tracks the EHR system at Dr. John David Klement's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Klement practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Dr. Klement's practiceAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. John David Klement is one of 996 hematologists and oncologists in New York

Hematology and oncology is Dr. Klement's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Klement is licensed in New York.

Specialties and state licenses

  • Hematology and oncology, New YorkPrimaryLicense 329318 · taxonomy 207RH0003X

Hematologists and oncologists near Dr. Klement

Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. John David Klement's patients have a median age of 71

Across all payers, Dmand AI patient panel data puts Dr. Klement's median patient age at 71, with 50% women.

Dr. Klement's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 71

Patient panel by sex, all payers

  • Women50%
  • Men50%

Source: Dmand AI Patient Panel Data

Dr. John David Klement wrote 210 Medicare Part D claims in 2024

In 2024, Dr. Klement wrote 210 Medicare Part D claims for 68 patients. 88% of them were for generic drugs. CMS names the drug for 23 of them, across 2 drugs with 11 or more claims each, at $474 in total drug cost. In 2023, CMS named 25 claims across 2 drugs.

Part D claims, 2024210
Drugs named by CMS2
Total drug cost$474
Part D patients68

Dr. Klement's Part D claims by kind of drug, 2024

  • Generic185 claims88%
  • Brand-name and other25 claims12%

Dr. Klement's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Klement's Part D claims, 2024

  • Antibiotics5%11 of 210 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 252024: 238%

Drugs named by CMS: 2 in 2024, 2 in 2023.

See all prescribing by Dr. Klement

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Dr. John David Klement has 28 publications on record

Dmand AI links 28 papers to Dr. Klement, published from 2017 to 2024. 2018 was the busiest year, with 5. The most frequent topics are Cell Line, Tumor, Disease Models, Animal and Colonic Neoplasms. Dr. Klement has published most often in Cancers (Basel). Dr. Klement's most frequent co-authors are Yolonda Lorig Colson, MD, PhD, David H. Munn, MD and Aaron En-Kuang Fan, MD, PhD.

Papers28
Years published2017 to 2024

Dr. Klement's papers by year, 2017 to 2024

Topics Dr. Klement writes about most

  • Cell Line, Tumor
  • Disease Models, Animal
  • Colonic Neoplasms
  • Mice, Inbred C57BL
  • T-Lymphocytes, Cytotoxic
  • Tumor Escape
  • B7-H1 Antigen
  • Gene Expression Regulation, Neoplastic

Dr. Klement's most frequent co-authors

Recent publications by Dr. Klement

See all 28 publications and co-authors

See who Dr. Klement researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Klement works with, so you can find a warm path to the right hematologists and oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Sources for Dr. John David Klement's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. John David Klement

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. John David Klement's NPI number?

Dr. John David Klement's NPI number is 1679223192. It was assigned on March 27, 2022, and it is active in the NPI Registry.

What kind of doctor is Dr. John David Klement?

Dr. John David Klement is a hematologist and oncologist in New York, New York. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).

Where does Dr. John David Klement practice?

Dr. Klement practices at 1275 York Ave, New York, NY 10065-6007.

What is Dr. John David Klement's office phone number?

The practice phone on file for Dr. Klement is (646) 632-9223.

What is Dr. John David Klement's medical license number?

Dr. Klement holds New York license 329318.

What drugs does Dr. John David Klement prescribe most?

In 2024 Medicare Part D data, Dr. Klement's most prescribed drugs by claims were Atorvastatin Calcium and Amlodipine Besylate.

How long has Dr. John David Klement been practicing?

Dr. Klement's NPI was assigned in 2022.

Does Dr. John David Klement do research?

Dmand AI links 28 publications to Dr. Klement, published from 2017 to 2024.

Who does Dr. John David Klement publish with?

Dr. Klement's most frequent co-authors are Yolonda Lorig Colson, MD, PhD (3 shared papers), David H. Munn, MD (2 shared papers) and Aaron En-Kuang Fan, MD, PhD (1 shared paper).

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