Brendan Gontarz, MD
Vascular Surgery Physician · North Haven, CT
Brendan Gontarz, MD is a vascular surgery physician with a practice address in North Haven, Connecticut, and NPI 1023471273, issued on Apr 4, 2016. Check the license (Connecticut 75034, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Brendan Gontarz
- Credential
- MD
- Primary taxonomy
- Vascular Surgery Physician 2086S0129X
- License number
- 75034 CT
Self-reported in NPPES; status is on the state search - Practice location
- 280 State St, North Haven, CT 06473
- Phone
- (203) 288-2886
- Enumerated
- Apr 4, 2016
- Record last updated
- Jul 27, 2026
- Fax
- (203) 288-2576
- Entity
- Type 1 · individual
8 nearest vascular surgery physician records → All 89 in Connecticut → Look up another NPI →
Also registered at 280 State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nancy Chin, PA-CSurgical Physician Assistant1699798488
- Brian Coyle, MDVascular Surgery Physician1043492028
- Ralph Denatale, M.D.Vascular Surgery Physician1497790026
- Antoine Ferneini, M.D.Vascular Surgery Physician1053344424
Verify Brendan Gontarz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 75034Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 91.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $993.26
6 payments; by number, the most common kind was food and beverage; the largest payer was W. L. Gore & Associates, Inc. The 4,059 providers of this specialty with any payment received $6,178.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Brendan Gontarz among 89 vascular surgery physician records in Connecticut
Brendan Gontarz, MD is one of 89 vascular surgery physician records with a practice address in Connecticut. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 89% of them.
- NPI issued2016 · 89% of these records are older, 7% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileNo · 80% of these records are
- Record last updated2026 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Vascular Surgery Physician providers in Connecticut
There are 89 vascular surgery physician records in Connecticut.
All 89 in Connecticut → Every provider in North Haven → Vascular Surgery Physician nationwide →
The 8 vascular surgery physician records with the nearest ZIP codes
- Brian Coyle, MDNorth Haven, CT 064731043492028
- Ralph Denatale, M.D.North Haven, CT 064731497790026
- Antoine Ferneini, M.D.North Haven, CT 064731053344424
- Bart Muhs, MD, PHDOld Saybrook, CT 064751811928492
- Michael Sergi, MDShelton, CT 064841184867723
- Andrew Smith, MDShelton, CT 064841093100869
- David Esposito, M.D., MBAMilford, CT 064601386669786
- Kaveh Davoudi, MDSouthbury, CT 064881912106501
Common questions
What is Brendan Gontarz, MD's NPI number?
Brendan Gontarz, MD's National Provider Identifier (NPI) is 1023471273, issued on Apr 4, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Brendan Gontarz, MD located?
The NPPES record lists a practice address at 280 State St, North Haven, CT, 06473. Phone: (203) 288-2886. Providers update this record themselves, so call before visiting.
How can I verify Brendan Gontarz, MD's license?
NPPES lists Connecticut license number 75034, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Brendan Gontarz, MD's MIPS final score?
The 2023 MIPS final score is 91.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.