Bariatric SurgeryPostoperative ComplicationsPulmonary Embolism
Dr. Brendan Gontarz, MD
NPI1023471273
- Medicare services, 2023
- 49
- Medicare patients, 2024
- 14
- Part D claims, 2017
- 22
- Publications
- 10
- Hospital affiliations
- 1
- Practice address
- 100 Grand St, New Britain, CT 06052
- Practice phone
- Call (860) 224-5011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The Hospital of Central Connecticut - New Britain General Campus
New Britain, Connecticut
Find Dr. Gontarz's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Brendan Gontarz is a general surgeon in New Britain, Connecticut
Dr. Gontarz practices at The Hospital of Central Connecticut - New Britain General Campus in New Britain, Connecticut.
Dr. Gontarz's NPI, 1023471273, was assigned on April 4, 2016. Dr. Gontarz holds Connecticut license 75034.
NPI and contact details
- NPI
- 1023471273NPI Registry (opens in a new tab)
- NPI enumeration date
- April 4, 2016
- NPI status
- Active
- Practice phone
- (860) 224-5011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Brendan Gontarz practices at The Hospital of Central Connecticut - New Britain General Campus in New Britain, Connecticut
Dr. Gontarz's primary practice is The Hospital of Central Connecticut - New Britain General Campus, at 100 Grand St, New Britain, CT 06052 in Capitol County. The practice phone is (860) 224-5011.
- The Hospital of Central Connecticut - New Britain General Campus100 Grand St, New Britain, CT 06052 · Capitol CountyPhone(860) 224-5011
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Brendan Gontarz is affiliated with 2 sites of care and 1 medical group
Dr. Gontarz's primary practice is The Hospital of Central Connecticut - New Britain General Campus in New Britain, Connecticut. Dr. Gontarz is also affiliated with UConn John Dempsey Hospital. The medical group on file is Hartford HealthCare Medical Group Specialists.
The Hospital of Central Connecticut - New Britain General CampusPrimary
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. Brendan Gontarz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gontarz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Hospital of Central Connecticut - New Britain General Campus | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Brendan Gontarz is one of 303 general surgeons in Connecticut
Surgery is Dr. Gontarz's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Gontarz is licensed in Connecticut.
Specialties and state licenses
- Surgery, ConnecticutPrimary
General surgeons near Dr. Gontarz
Counts of general surgeons 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. Brendan Gontarz billed Medicare for 49 services in 2023
CMS data shows 49 Medicare services from Dr. Gontarz across 2 procedure codes in 2023, for 14 Medicare patients. Medicare paid $2,676 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202349
Medicare patients14
Paid by Medicare$2,676
Procedure codes2
Dr. Gontarz compared with the Connecticut median for general surgeons, 2023
- Dr. Gontarz
- Connecticut median
- Medicare services
- 49vs 10955% below
- Medicare patients
- 14vs 9585% below
- Part D claims
- 22vs 2512% below
Medians across 295 general surgeons in Connecticut with Dmand AI profiles that report each measure.
Dr. Gontarz's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gontarz and other general surgeons in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Brendan Gontarz treated 14 Medicare patients in 2024, average age 73
CMS counts 14 Medicare patients who saw Dr. Gontarz in 2024. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 3.57, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Medicare patients, 202414
Average age73
Average risk score3.57
Chronic conditions among Dr. Gontarz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Source: Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Brendan Gontarz wrote 22 Medicare Part D claims in 2017
In 2017, Dr. Gontarz wrote 22 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $130 in total drug cost.
Part D claims, 201722
Drugs named by CMS1
Total drug cost$130
Dr. Gontarz's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Brendan Gontarz has 10 publications on record
Dmand AI links 10 papers to Dr. Gontarz, published from 2019 to 2024. 2022 was the busiest year, with 3. The most frequent topics are Brain Injuries, Traumatic, Hernia and Length of Stay. Dr. Gontarz has published most often in Cureus. Dr. Gontarz's most frequent co-authors are David S. Shapiro, MD, William Bruce Devoe and Joseph Derek Forrester, MD.
Papers10
Years published2019 to 2024
Dr. Gontarz's papers by year, 2019 to 2024
Topics Dr. Gontarz writes about most
- Brain Injuries, Traumatic
- Hernia
- Length of Stay
- Postoperative Complications
- Rib Fractures
- Venous Thromboembolism
Dr. Gontarz's most frequent co-authors
- David S. Shapiro, MD3 shared papers
- William Bruce Devoe2 shared papers
- Joseph Derek Forrester, MD2 shared papers
Recent publications by Dr. Gontarz
Fibrin Tissue AdhesiveHerniaRobotic Surgical Procedures
ColostomyHerniaHernia, Ventral
AnticoagulantsTracheostomyVenous Thromboembolism
Aortic Aneurysm, AbdominalAortic Aneurysm, ThoracicBlood Vessel Prosthesis
See who Dr. Gontarz researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gontarz works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Brendan Gontarz received $2,232 in industry payments from 2024 to 2025
CMS Open Payments shows 16 general payments to Dr. Gontarz from 8 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 75% of the total. W. L. Gore & Associates, Inc. paid the most, $941.
General payments to Dr. Gontarz by program year, 2024 to 2025
General payments to Dr. Gontarz by kind, 2024 to 2025
$2.2Kin total
- Food and beverage$1,68575%
- Education$54725%
Companies that paid Dr. Gontarz the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Brendan Gontarz's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Medicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Brendan Gontarz
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. Brendan Gontarz's NPI number?
Dr. Brendan Gontarz's NPI number is 1023471273. It was assigned on April 4, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Brendan Gontarz?
Dr. Brendan Gontarz is a general surgeon in New Britain, Connecticut. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Brendan Gontarz practice?
Dr. Gontarz practices at 100 Grand St, New Britain, CT 06052. Dr. Gontarz's primary practice is The Hospital of Central Connecticut - New Britain General Campus in New Britain, Connecticut.
What is Dr. Brendan Gontarz's office phone number?
The practice phone on file for Dr. Gontarz is (860) 224-5011.
What is Dr. Brendan Gontarz's medical license number?
Dr. Gontarz holds Connecticut license 75034.
Which hospitals is Dr. Brendan Gontarz affiliated with?
Dr. Gontarz is affiliated with UConn John Dempsey Hospital.
What medical group is Dr. Brendan Gontarz part of?
Dr. Gontarz is linked to Hartford HealthCare Medical Group Specialists.
Does Dr. Brendan Gontarz accept Medicare?
Yes. CMS data shows Dr. Gontarz billed Medicare for 49 services in 2023.
How many Medicare patients does Dr. Brendan Gontarz see?
CMS counts 14 Medicare patients who saw Dr. Gontarz in 2024, with an average age of 73.
What services does Dr. Brendan Gontarz bill to Medicare?
In 2023, Dr. Gontarz's most billed Medicare services were hospital inpatient care (99231) and hospital inpatient care (99221).
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What drugs does Dr. Brendan Gontarz prescribe most?
In 2017 Medicare Part D data, Dr. Gontarz's most prescribed drugs by claims were Oxycodone HCl.
Has Dr. Brendan Gontarz received payments from drug or device companies?
CMS Open Payments shows $2,232 in general payments to Dr. Gontarz from 8 companies from 2024 to 2025. The largest total came from W. L. Gore & Associates, Inc.
How long has Dr. Brendan Gontarz been practicing?
Dr. Gontarz's NPI was assigned in 2016.
Does Dr. Brendan Gontarz do research?
Dmand AI links 10 publications to Dr. Gontarz, published from 2019 to 2024.
Who does Dr. Brendan Gontarz publish with?
Dr. Gontarz's most frequent co-authors are David S. Shapiro, MD (3 shared papers), William Bruce Devoe (2 shared papers) and Joseph Derek Forrester, MD (2 shared papers).
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