Dr. David Paul Horowitz, MD

  • New York, NY
  • Radiation oncologist
NPI1841425717PAC ID8022239326
Medicare services, 2024
1,406
Medicare patients, 2024
118
Part D claims, 2024
28
Publications
58
Clinical trials
1
Practice address
622 W 168th St, New York, NY 10032
Practice phone
Call (212) 297-4255
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Columbia University Irving Medical Center

New York, New York

See all 5 affiliations

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Dr. David Paul Horowitz is a radiation oncologist in New York, New York

Dr. Horowitz practices at Columbia University Irving Medical Center in New York, New York.

Dr. Horowitz's NPI, 1841425717, was assigned on May 21, 2009. Dr. Horowitz graduated from The Johns Hopkins University School of Medicine in 2009. Dr. Horowitz holds New York license 276436.

NPI and contact details
Medicare PAC ID
8022239326
NPI enumeration date
May 21, 2009
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(212) 297-4255
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
43
Medical school graduation
2009

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. David Paul Horowitz practices at Columbia University Irving Medical Center in New York, New York

Dr. Horowitz's primary practice is Columbia University Irving Medical Center, at 622 W 168th St, New York, NY 10032 in New York County. The practice phone is (212) 297-4255.

  • Columbia University Irving Medical Center
    622 W 168th St, New York, NY 10032 · New York CountyPhone(212) 297-4255

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

Dr. David Paul Horowitz is affiliated with 2 sites of care and 3 medical groups

Dr. Horowitz's primary practice is Columbia University Irving Medical Center in New York, New York. Dr. Horowitz is also affiliated with NewYork-Presbyterian/Weill Cornell Medical Center. The medical group on file is ColumbiaDoctors. Dmand AI also links Dr. Horowitz to 2 more medical groups, each named with a free account.

See all 5 affiliations for Dr. Horowitz

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

Dmand AI tracks the EHR system at Dr. David Paul Horowitz's practice

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

EHR by site
SiteEHR vendor and product
Columbia University Irving Medical CenterAvailable with a free account
+1 more site and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. David Paul Horowitz is one of 385 radiation oncologists in New York

Radiation oncology is Dr. Horowitz's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Horowitz is board certified in radiation oncology by the American Board of Radiology. Dmand AI has Dr. Horowitz's licenses on file in 6 states: New York, Florida, Virginia, Connecticut, New Jersey and District of Columbia.

Specialties and state licenses

  • Radiation oncology, New YorkPrimaryLicense 276436 · 2014 to 2026 · taxonomy 2085R0001X
  • Florida licenseSince 2021
  • Virginia license2014 to 2026
  • Connecticut license2022 to 2025
  • New Jersey license2022 to 2025
  • District of Columbia license2009 to 2010

Clinical focus

Dmand AI lists bone cancer radiation, cancer radiation-upper GI, colorectal cancer radiation, lymphoma radiation, pancreatic cancer radiation and prostate cancer radiation among the conditions Dr. Horowitz treats.

Radiation oncologists near Dr. Horowitz

Counts of radiation 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. David Paul Horowitz billed Medicare for 1,406 services in 2024

CMS data shows 1,406 Medicare services from Dr. Horowitz across 15 procedure codes in 2024, for 118 Medicare patients. Medicare paid $131,326 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 20241,406
Medicare patients118
Paid by Medicare$131,326
Procedure codes15

Dr. Horowitz's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Imaging
2023: 1,0792024: 1,35225%
Office and hospital visits
2023: 772024: 5430%

Dr. Horowitz compared with the New York median for radiation oncologists, 2024

  • Dr. Horowitz
  • New York median
Medicare services
1,406vs 1,05433% above
Medicare patients
118vs 16026% below
Part D claims
17vs 3653% below

Medians across 368 radiation oncologists in New York with Dmand AI profiles that report each measure.

Dr. Horowitz's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Horowitz

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. David Paul Horowitz treated 118 Medicare patients in 2024, average age 75

CMS counts 118 Medicare patients who saw Dr. Horowitz in 2024. The largest group is 65 to 74, with 50 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 28% are also on Medicaid. Their average risk score is 2.83, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Horowitz's median patient age at 74, with 46% women.

Medicare patients, 2024118
Average age75
Average risk score2.83
Also on Medicaid28%

Dr. Horowitz's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Horowitz's Medicare patients by sex, 2024

  • Women4437%
  • Men7463%

Chronic conditions among Dr. Horowitz's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Cancer46%
  4. Diabetes46%
  5. Arthritis42%
  6. Ischemic heart disease38%
  7. Chronic kidney disease37%
  8. Mood disorders31%

Share of Medicare patients with each condition. A patient can have several.

Dr. Horowitz's patients across all payers

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

Patient panel by age, all payers

Median age 74

Patient panel by sex, all payers

  • Women46%
  • Men54%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. David Paul Horowitz wrote 28 Medicare Part D claims in 2024

In 2024, Dr. Horowitz wrote 28 Medicare Part D claims for 16 patients. 100% of them were for generic drugs. CMS names the drug for 17 of them, across 1 drug with 11 or more claims each, at $137 in total drug cost. In 2022, CMS named 14 claims across 1 drug.

Part D claims, 202428
Drugs named by CMS1
Total drug cost$137
Part D patients16

Dr. Horowitz's most prescribed drugs by claims, 2023

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

Part D claims for drugs CMS names, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 142023: 1721%

Drugs named by CMS: 1 in 2023, 1 in 2022.

See all prescribing by Dr. Horowitz

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

Dr. David Paul Horowitz scored 100 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Horowitz for performance year 2024, reported through an alternative payment model (APM). Dr. Horowitz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Horowitz as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Horowitz's MIPS scores, performance year 2024

  • 100of 100Final score
  • 85.3of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

For MedTech and pharma teams

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Dr. David Paul Horowitz has 58 publications on record

Dmand AI links 58 papers to Dr. Horowitz, published from 2010 to 2025. 2024 was the busiest year, with 6. The most frequent topics are Breast Neoplasms, Pancreatic Neoplasms and Carcinoma, Squamous Cell. Dr. Horowitz has published most often in Adv Radiat Oncol. Dr. Horowitz's most frequent co-authors are Lisa Ann Kachnic, MD, Simon K. Cheng, MD, PhD and Alfred I. Neugut, MD, PhD.

Papers58
Years published2010 to 2025

Dr. Horowitz's papers by year, 2015 to 2025

Topics Dr. Horowitz writes about most

  • Breast Neoplasms
  • Pancreatic Neoplasms
  • Carcinoma, Squamous Cell
  • Radiotherapy, Adjuvant
  • Radiotherapy Dosage
  • Radiotherapy Planning, Computer-Assisted
  • Antineoplastic Combined Chemotherapy Protocols
  • Anus Neoplasms

Dr. Horowitz's most frequent co-authors

Recent publications by Dr. Horowitz

See all 58 publications and co-authors

See who Dr. Horowitz researches with

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

How network discovery works

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

Dr. David Paul Horowitz has worked on 1 clinical trial

Dmand AI links Dr. Horowitz to 1 clinical trial. Conditions studied include Pelvic Neoplasms.

Conditions in Dr. Horowitz's trials

  • Pelvic Neoplasms

Recent clinical trials with Dr. Horowitz

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. David Paul Horowitz received $1,197 in industry payments from 2016 to 2018

CMS Open Payments shows 6 general payments to Dr. Horowitz from 3 drug and device companies from 2016 to 2018. Education speaker fees make up the largest share, 84% of the total. Carl Zeiss Meditec, Inc. paid the most, $1,140.

General payments to Dr. Horowitz by program year, 2016 to 2018

General payments to Dr. Horowitz by kind, 2016 to 2018

$1.2Kin total
  • Education speaker fees$1,00084%
  • Travel and lodging$14012%
  • Food and beverage$575%

Companies that paid Dr. Horowitz the most, 2016 to 2018

Share is of all general payments to this clinician.

See all payments to Dr. Horowitz

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. David Paul Horowitz has 4 awards and honors on record

Dmand AI lists 4 awards for Dr. Horowitz, most recently Super Doctors--Rising Stars in 2020. Dr. Horowitz serves on IRB4 Columbia University Institutional Review Board and Columbia University Medical Center Joint Radiation Safety Committee.

Awards and honors for Dr. Horowitz

  1. 2020
    • Super Doctors--Rising Stars
  2. 2013
    • Roentgen Resident/Fellow Research Award
  3. 2004
    • High Honors-Department of Biological Sciences
  4. 2003
    • Presidential Scholar

Dr. Horowitz's committees and leadership roles

IRB4 Columbia University Institutional Review BoardMember
2016 to present
Columbia University Medical Center Joint Radiation Safety CommitteeMember
2015 to present
NRG Oncology General GI CommitteeMember
2016 to 2018
NRG Oncology Non-Colorectal Gastrointestinal Cancer Core CommitteeMember
2016 to 2018
Columbia University Medical Center Protocol Review and Monitoring CommitteeMember
2014 to 2015

Source: Dmand AI Professional Profile Data

Dr. David Paul Horowitz graduated from The Johns Hopkins University School of Medicine

Dr. Horowitz graduated from The Johns Hopkins University School of Medicine in 2009. Dr. Horowitz is a member of AACR, ACR, ASTRO, ASCO and RSNA.

  1. Medical schoolThe Johns Hopkins University School of Medicine
  2. Board certified in radiation oncologyAmerican Board of Radiology

Source: Dmand AI Professional Profile Data

Dr. David Paul Horowitz accepts plans from 17 insurance carriers

Dr. Horowitz is in network with 17 carriers, including Elevance, MVP Health Care and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

  • Elevance
  • MVP Health Care
  • United Healthcare
  • Aetna
  • Blue Cross Blue Shield of Michigan
  • HCSC
  • Aspirus Health Plan
  • Blue Cross Blue Shield of Massachusetts
  • +9 more carriersWith a free account

Plan types Dr. Horowitz accepts, by number of carriers

  1. PPO11
  2. HMO8
  3. Medicare7
  4. POS6
  5. EPO4
  6. Medicaid4

Source: Dmand AI Insurance Network Data

Sources for Dr. David Paul Horowitz'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
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
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)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
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. David Paul Horowitz

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. David Paul Horowitz's NPI number?

Dr. David Paul Horowitz's NPI number is 1841425717. It was assigned on May 21, 2009, and it is active in the NPI Registry.

What kind of doctor is Dr. David Paul Horowitz?

Dr. David Paul Horowitz is a radiation oncologist in New York, New York. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).

Where does Dr. David Paul Horowitz practice?

Dr. Horowitz practices at 622 W 168th St, New York, NY 10032. Dr. Horowitz's primary practice is Columbia University Irving Medical Center in New York, New York. Dmand AI also links Dr. Horowitz to 2 medical groups.

What is Dr. David Paul Horowitz's office phone number?

The practice phone on file for Dr. Horowitz is (212) 297-4255.

What is Dr. David Paul Horowitz's medical license number?

Dr. Horowitz holds New York license 276436, one of the licenses on file in 6 states.

Which states has Dr. David Paul Horowitz been licensed in?

Dmand AI has state licenses on file for Dr. Horowitz in New York (2014 to 2026), Florida (since 2021), Virginia (2014 to 2026), Connecticut (2022 to 2025), New Jersey (2022 to 2025) and District of Columbia (2009 to 2010).

Which hospitals is Dr. David Paul Horowitz affiliated with?

Dr. Horowitz is affiliated with NewYork-Presbyterian/Weill Cornell Medical Center.

What medical group is Dr. David Paul Horowitz part of?

Dr. Horowitz is linked to ColumbiaDoctors. Dmand AI links Dr. Horowitz to 2 more medical groups.

Does Dr. David Paul Horowitz accept Medicare?

Yes. CMS data shows Dr. Horowitz billed Medicare for 1,406 services in 2024, and Dr. Horowitz accepts Medicare assignment.

Does Dr. David Paul Horowitz offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Horowitz as offering telehealth services.

Show 11 more questionsShow fewer questions

What is Dr. David Paul Horowitz's MIPS score?

Dr. Horowitz's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Dr. David Paul Horowitz see?

CMS counts 118 Medicare patients who saw Dr. Horowitz in 2024, with an average age of 75.

Is Dr. David Paul Horowitz board certified?

Yes. Dr. Horowitz is board certified in radiation oncology by the American Board of Radiology.

What services does Dr. David Paul Horowitz bill to Medicare?

In 2024, Dr. Horowitz's most billed Medicare services were radiation oncology (77300), radiation oncology (77014) and radiation oncology (77334).

Where did Dr. David Paul Horowitz go to medical school?

Dr. Horowitz graduated from The Johns Hopkins University School of Medicine in 2009.

What drugs does Dr. David Paul Horowitz prescribe most?

In 2023 Medicare Part D data, Dr. Horowitz's most prescribed drugs by claims were Ondansetron ODT.

Has Dr. David Paul Horowitz received payments from drug or device companies?

CMS Open Payments shows $1,197 in general payments to Dr. Horowitz from 3 companies from 2016 to 2018. The largest total came from Carl Zeiss Meditec, Inc.

How long has Dr. David Paul Horowitz been practicing?

Dr. Horowitz graduated from medical school in 2009, 17 years ago.

Does Dr. David Paul Horowitz do research?

Dmand AI links 58 publications to Dr. Horowitz, published from 2010 to 2025. Dr. Horowitz has worked on 1 clinical trial.

Who does Dr. David Paul Horowitz publish with?

Dr. Horowitz's most frequent co-authors are Lisa Ann Kachnic, MD (18 shared papers), Simon K. Cheng, MD, PhD (11 shared papers) and Alfred I. Neugut, MD, PhD (11 shared papers).

What insurance does Dr. David Paul Horowitz accept?

Dr. Horowitz is in network with 17 carriers, including Elevance, MVP Health Care and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

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