Dr. James Vredenburgh, MD

  • Hartford, CT
  • Hematologist and oncologist
NPI1609950575
Medicare services, 2024
674
Medicare patients, 2024
132
Part D claims, 2024
1,617
Publications
2
Hospital affiliations
1
Practice address
114 Woodland Street & 500 Blue Hills Avenue, Hartford, CT 06105
Practice phone
Call (860) 714-5541
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Saint Francis Hospital

Hospital · Hartford, Connecticut

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Dr. James Vredenburgh is a hematologist and oncologist in Hartford, Connecticut

Dr. Vredenburgh practices at Saint Francis Hospital in Hartford, Connecticut, part of Trinity Health.

Dr. Vredenburgh's NPI, 1609950575, was assigned on October 25, 2006. Dr. Vredenburgh graduated from University of Vermont College of Medicine in 1983. Dr. Vredenburgh holds North Carolina license 39132.

NPI and contact details
NPI enumeration date
October 25, 2006
NPI status
Active
Practice phone
(860) 714-5541
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
69
Medical school graduation
1983

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

Dr. James Vredenburgh practices at Saint Francis Hospital in Hartford, Connecticut

Dr. Vredenburgh's primary practice is Saint Francis Hospital, at 114 Woodland Street & 500 Blue Hills Avenue, Hartford, CT 06105 in Hartford County. The practice phone is (860) 714-5541.

  • Saint Francis Hospital
    114 Woodland Street & 500 Blue Hills Avenue, Hartford, CT 06105 · Hartford CountyPhone(860) 714-5541

Source: Dmand AI Affiliation Data

Dr. James Vredenburgh is affiliated with 1 site of care and 1 medical group

Dr. Vredenburgh's primary practice is Saint Francis Hospital in Hartford, Connecticut, part of Trinity Health. The medical group on file is Trinity Health Of New England Medical Group.

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. James Vredenburgh's practice

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

EHR by site
SiteEHR vendor and product
Saint Francis HospitalAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. James Vredenburgh is one of 175 hematologists and oncologists in Connecticut

Hematology and oncology is Dr. Vredenburgh's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Vredenburgh is licensed in North Carolina.

Specialties and state licenses

  • Hematology and oncology, North CarolinaPrimaryLicense 39132 · taxonomy 207RH0003X

Hematologists and oncologists near Dr. Vredenburgh

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. James Vredenburgh billed Medicare for 674 services in 2024

CMS data shows 674 Medicare services from Dr. Vredenburgh across 5 procedure codes in 2024, for 132 Medicare patients. Medicare paid $89,329 for them.

Medicare services, 2024674
Medicare patients132
Paid by Medicare$89,329
Procedure codes5

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

  • 2023
  • 2024
Office and hospital visits
2023: 5672024: 64714%
Other services
2023: 272024: 27No change

Where Dr. Vredenburgh's Medicare services took place, 2024

  • In an office61391%
  • In a facility619%

Dr. Vredenburgh compared with the Connecticut median for hematologists and oncologists, 2024

  • Dr. Vredenburgh
  • Connecticut median
Medicare services
674vs 54125% above
Medicare patients
132vs 20837% below
Part D claims
1,234vs 4512.7 times

Medians across 168 hematologists and oncologists in Connecticut with Dmand AI profiles that report each measure.

Dr. Vredenburgh'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. Vredenburgh

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

Dr. James Vredenburgh treated 132 Medicare patients in 2024, average age 73

CMS counts 132 Medicare patients who saw Dr. Vredenburgh in 2024. The largest group is 75 to 84, with 50 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% are also on Medicaid. Their average risk score is 2.29, 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. Vredenburgh's median patient age at 74, with 54% women.

Medicare patients, 2024132
Average age73
Average risk score2.29
Also on Medicaid23%

Dr. Vredenburgh's Medicare patients by age, 2024

Dr. Vredenburgh's Medicare patients by sex, 2024

  • Women7456%
  • Men5844%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Cancer64%
  4. Arthritis45%
  5. Ischemic heart disease34%
  6. Anxiety33%
  7. Chronic kidney disease33%
  8. Mood disorders31%

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

Dr. Vredenburgh'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

  • Women54%
  • Men46%

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

Dr. James Vredenburgh wrote 1,617 Medicare Part D claims in 2024

In 2024, Dr. Vredenburgh wrote 1,617 Medicare Part D claims for 161 patients. 77% of them were for generic drugs. CMS names the drug for 1,234 of them, across 43 drugs with 11 or more claims each, at $2,321,716 in total drug cost. In 2023, CMS named 872 claims across 34 drugs.

Part D claims, 20241,617
Drugs named by CMS43
Total drug cost$2.3M
Part D patients161

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

  • Generic1,248 claims77%
  • Brand-name and other369 claims23%

Dr. Vredenburgh'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. Vredenburgh's Part D claims, 2024

  • Opioids15%237 of 1,617 claims
  • Antibiotics3%46 of 1,617 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: 8722024: 1,23442%

Drugs named by CMS: 43 in 2024, 34 in 2023.

See all prescribing by Dr. Vredenburgh

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. James Vredenburgh has 2 publications on record

Dmand AI links 2 papers to Dr. Vredenburgh, published from 2024 to 2025. Dr. Vredenburgh has published most often in Cureus.

Papers2
Years published2024 to 2025

Recent publications by Dr. Vredenburgh

See all 2 publications and co-authors

See who Dr. Vredenburgh researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Vredenburgh 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

Dr. James Vredenburgh received $2,669 in industry payments from 2016 to 2021

CMS Open Payments shows 55 general payments to Dr. Vredenburgh from 11 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 46% of the total. Puma Biotechnology, Inc. paid the most, $1,149.

General payments to Dr. Vredenburgh by program year, 2016 to 2021

General payments to Dr. Vredenburgh by kind, 2016 to 2021

$2.7Kin total
  • Food and beverage$1,21846%
  • Consulting fees$1,00037%
  • Travel and lodging$43916%
  • Education$120%

Companies that paid Dr. Vredenburgh the most, 2016 to 2021

Share is of all general payments to this clinician.

See all payments to Dr. Vredenburgh

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

Dr. James Vredenburgh graduated from University of Vermont College of Medicine

Dr. Vredenburgh graduated from University of Vermont College of Medicine in 1983.

  1. Medical schoolUniversity of Vermont College of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. James Vredenburgh'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand 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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
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. James Vredenburgh

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. James Vredenburgh's NPI number?

Dr. James Vredenburgh's NPI number is 1609950575. It was assigned on October 25, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. James Vredenburgh?

Dr. James Vredenburgh is a hematologist and oncologist in Hartford, Connecticut. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).

Where does Dr. James Vredenburgh practice?

Dr. Vredenburgh practices at 114 Woodland Street & 500 Blue Hills Avenue, Hartford, CT 06105. Dr. Vredenburgh's primary practice is Saint Francis Hospital in Hartford, Connecticut, part of Trinity Health.

What is Dr. James Vredenburgh's office phone number?

The practice phone on file for Dr. Vredenburgh is (860) 714-5541.

What is Dr. James Vredenburgh's medical license number?

Dr. Vredenburgh holds North Carolina license 39132.

Which hospitals is Dr. James Vredenburgh affiliated with?

Dr. Vredenburgh practices at Saint Francis Hospital in Hartford, Connecticut.

What medical group is Dr. James Vredenburgh part of?

Dr. Vredenburgh is linked to Trinity Health Of New England Medical Group.

Does Dr. James Vredenburgh accept Medicare?

Yes. CMS data shows Dr. Vredenburgh billed Medicare for 674 services in 2024.

How many Medicare patients does Dr. James Vredenburgh see?

CMS counts 132 Medicare patients who saw Dr. Vredenburgh in 2024, with an average age of 73.

What services does Dr. James Vredenburgh bill to Medicare?

In 2024, Dr. Vredenburgh's most billed Medicare services were office visit, established patient (99215), hospital inpatient care (99233) and medicare service (G2212).

Show 5 more questionsShow fewer questions

Where did Dr. James Vredenburgh go to medical school?

Dr. Vredenburgh graduated from University of Vermont College of Medicine in 1983.

What drugs does Dr. James Vredenburgh prescribe most?

In 2024 Medicare Part D data, Dr. Vredenburgh's most prescribed drugs by claims were Oxycodone HCl, Eliquis and Dexamethasone.

Has Dr. James Vredenburgh received payments from drug or device companies?

CMS Open Payments shows $2,669 in general payments to Dr. Vredenburgh from 11 companies from 2016 to 2021. The largest total came from Puma Biotechnology, Inc.

How long has Dr. James Vredenburgh been practicing?

Dr. Vredenburgh graduated from medical school in 1983, 43 years ago.

Does Dr. James Vredenburgh do research?

Dmand AI links 2 publications to Dr. Vredenburgh, published from 2024 to 2025.

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