Dr. Joshua Tolkien Kantrowitz, MD

  • Saint Johnsbury, VT
  • Psychiatrist
NPI1508059304
Part D claims, 2024
124
Publications
67
Clinical trials
4
Industry payments
$20,979
State licenses
2
Practice address
714 Breezy Hill Rd, Saint Johnsbury, VT 05819
Practice phone
Call (917) 755-7845
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. Joshua Tolkien Kantrowitz is a psychiatrist in Saint Johnsbury, Vermont

Dr. Kantrowitz practices in Saint Johnsbury, Vermont.

Dr. Kantrowitz's NPI, 1508059304, was assigned on August 24, 2007. Dr. Kantrowitz graduated from State University of New York Downstate Medical Center College of Medicine in 2003. Dr. Kantrowitz holds New York license 244568.

NPI and contact details
NPI enumeration date
August 24, 2007
NPI status
Active
Practice phone
(917) 755-7845
Professional email
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Personal email
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Mobile number
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Sex
Male
Medical school graduation
2003

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

Dr. Joshua Tolkien Kantrowitz's practice address is in Saint Johnsbury, Vermont

Dr. Kantrowitz's practice address in the NPI Registry is 714 Breezy Hill Rd, Saint Johnsbury, VT 05819, in Caledonia County. The practice phone is (917) 755-7845.

  • NPI Registry address
    714 Breezy Hill Rd, Saint Johnsbury, VT 05819 · Caledonia CountyPhone(917) 755-7845

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

Dmand AI tracks the EHR system at Dr. Joshua Tolkien Kantrowitz's practice

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

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

Source: Dmand AI Technology Install Data

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Dr. Joshua Tolkien Kantrowitz is one of 146 psychiatrists in Vermont

Psychiatry is Dr. Kantrowitz's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dmand AI has Dr. Kantrowitz's licenses on file in 2 states: New York and Connecticut.

Specialties and state licenses

  • Psychiatry, New YorkPrimaryLicense 244568 · taxonomy 2084P0800X
  • Connecticut licenseLicense 043586

Psychiatrists near Dr. Kantrowitz

Counts of psychiatrists 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. Joshua Tolkien Kantrowitz wrote 124 Medicare Part D claims in 2024

In 2024, Dr. Kantrowitz wrote 124 Medicare Part D claims. 100% of them were for generic drugs. CMS names the drug for 77 of them, across 5 drugs with 11 or more claims each, at $4,290 in total drug cost. In 2023, CMS named 77 claims across 4 drugs.

Part D claims, 2024124
Drugs named by CMS5
Total drug cost$4,290

Dr. Kantrowitz'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 772024: 77No change

Drugs named by CMS: 5 in 2024, 4 in 2023.

See all prescribing by Dr. Kantrowitz

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. Joshua Tolkien Kantrowitz has 67 publications on record

Dmand AI links 67 papers to Dr. Kantrowitz, published from 2007 to 2025. 2017 was the busiest year, with 6. The most frequent topics are Schizophrenia, Antipsychotic Agents and Schizophrenic Psychology. Dr. Kantrowitz has published most often in Schizophr Res. Dr. Kantrowitz's most frequent co-authors are Lawrence S, Kegeles, MD, Jeffrey Lieberman, MD and Anissa Abi-Dargham, MD.

Papers67
Years published2007 to 2025

Dr. Kantrowitz's papers by year, 2016 to 2025

Topics Dr. Kantrowitz writes about most

  • Schizophrenia
  • Antipsychotic Agents
  • Schizophrenic Psychology
  • Auditory Perception
  • Receptors, N-Methyl-D-Aspartate
  • Glutamic Acid
  • Psychotic Disorders
  • Acoustic Stimulation

Dr. Kantrowitz's most frequent co-authors

Recent publications by Dr. Kantrowitz

See all 67 publications and co-authors

See who Dr. Kantrowitz researches with

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

How network discovery works

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

Dr. Joshua Tolkien Kantrowitz has worked on 4 clinical trials

Dmand AI links Dr. Kantrowitz to 4 clinical trials. Conditions studied include Schizophrenia, Psychotic Disorders and Schizophrenia Spectrum and Other Psychotic Disorders. New York State Psychiatric Institute sponsors the most, 3.

Clinical trials with Dr. Kantrowitz by phase

  1. 1Phase 1: 1 trial
  2. 1Phase 1/2: 1 trial
  3. NonePhase 2: no trials
  4. NonePhase 3: no trials
  5. NonePhase 4: no trials

Trials with no phase (devices, behavioral studies) are left out.

Conditions in Dr. Kantrowitz's trials

  • Schizophrenia
  • Psychotic Disorders
  • Schizophrenia Spectrum and Other Psychotic Disorders

Investigators on the most trials with Dr. Kantrowitz

Recent clinical trials with Dr. Kantrowitz

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

Dr. Joshua Tolkien Kantrowitz received $20,979 in industry payments from 2017 to 2025

CMS Open Payments shows 64 general payments to Dr. Kantrowitz from 9 drug and device companies from 2017 to 2025. Consulting fees make up the largest share, 60% of the total. Alkermes, Inc. paid the most, $8,279. It also lists 1 research payment totaling $126 in 2018.

General payments to Dr. Kantrowitz by program year, 2017 to 2025

General payments to Dr. Kantrowitz by kind, 2017 to 2025

$21Kin total
  • Consulting fees$12,61560%
  • Travel and lodging$5,87228%
  • Food and beverage$1,9919%
  • Speaker and faculty fees$5002%

Companies that paid Dr. Kantrowitz the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Kantrowitz

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

Dr. Joshua Tolkien Kantrowitz graduated from State University of New York Downstate Medical Center College of Medicine

Dr. Kantrowitz graduated from State University of New York Downstate Medical Center College of Medicine in 2003.

  1. Medical schoolState University of New York Downstate Medical Center College of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Joshua Tolkien Kantrowitz'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
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
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)
Training, board certification and membershipsDmand AI Professional Profile 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. Joshua Tolkien Kantrowitz

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. Joshua Tolkien Kantrowitz's NPI number?

Dr. Joshua Tolkien Kantrowitz's NPI number is 1508059304. It was assigned on August 24, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Joshua Tolkien Kantrowitz?

Dr. Joshua Tolkien Kantrowitz is a psychiatrist in Saint Johnsbury, Vermont. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does Dr. Joshua Tolkien Kantrowitz practice?

Dr. Kantrowitz practices at 714 Breezy Hill Rd, Saint Johnsbury, VT 05819.

What is Dr. Joshua Tolkien Kantrowitz's office phone number?

The practice phone on file for Dr. Kantrowitz is (917) 755-7845.

What is Dr. Joshua Tolkien Kantrowitz's medical license number?

Dr. Kantrowitz holds New York license 244568, one of the licenses on file in 2 states.

Which states has Dr. Joshua Tolkien Kantrowitz been licensed in?

Dmand AI has state licenses on file for Dr. Kantrowitz in New York and Connecticut.

Where did Dr. Joshua Tolkien Kantrowitz go to medical school?

Dr. Kantrowitz graduated from State University of New York Downstate Medical Center College of Medicine in 2003.

What drugs does Dr. Joshua Tolkien Kantrowitz prescribe most?

In 2024 Medicare Part D data, Dr. Kantrowitz's most prescribed drugs by claims were Olanzapine, Benztropine Mesylate and Citalopram HBr.

Has Dr. Joshua Tolkien Kantrowitz received payments from drug or device companies?

CMS Open Payments shows $20,979 in general payments to Dr. Kantrowitz from 9 companies from 2017 to 2025. The largest total came from Alkermes, Inc.

How long has Dr. Joshua Tolkien Kantrowitz been practicing?

Dr. Kantrowitz graduated from medical school in 2003, 23 years ago.

Does Dr. Joshua Tolkien Kantrowitz do research?

Dmand AI links 67 publications to Dr. Kantrowitz, published from 2007 to 2025. Dr. Kantrowitz has worked on 4 clinical trials.

Who does Dr. Joshua Tolkien Kantrowitz publish with?

Dr. Kantrowitz's most frequent co-authors are Lawrence S, Kegeles, MD (8 shared papers), Jeffrey Lieberman, MD (6 shared papers) and Anissa Abi-Dargham, MD (5 shared papers).

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