Brendan Gontarz, MD

Primary specialty

Vascular Surgery PhysicianTaxonomy code 2086S0129X

License

75034 Issued in CT

Practice address

280 State St
North Haven, CT 06473-6103

Phone

(203) 288-2886

Fax

(203) 288-2576

NPI assigned

Apr 4, 2016

Last updated

Jul 27, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in CT

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir4.healow.com/fhir/r4/HIJABD

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Connecticut Vascular Center P.C.

  • Vascular Surgery Physician
  • North Haven, CT
  • NPI 1558494575

  Multi-Specialty

  NPD
• Hartford Healthcare Medical Group Specialists, PLLC

  • Surgery Physician
  • Hartford, CT
  • NPI 1023584216

  Multi-Specialty

  NPD
• The William W Backus Hospital

  • General Acute Care Hospital
  • Norwich, CT
  • NPI 1467517235

  Multi-Specialty

  NPD
• Hartford Healthcare Medical Group Specialists LLC

  • Customized Equipment (DME)
  • Groton, CT
  • NPI 1295367068
  NPD (past)
• University of Connecticut Health Center

  • Clinical Medical Laboratory
  • Farmington, CT
  • NPI 1427031293
  NPD (past)
• Wilton Anesthesia Associates, LLC

  • Certified Registered Nurse Anesthetist
  • Bloomfield, CT
  • NPI 1588696173

  Multi-Specialty

  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1459728000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785110400000",
    "number": "1023471273",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "280 STATE ST",
            "city": "NORTH HAVEN",
            "state": "CT",
            "postal_code": "064736103",
            "telephone_number": "203-288-2886",
            "fax_number": "203-288-2576"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "280 STATE ST",
            "city": "NORTH HAVEN",
            "state": "CT",
            "postal_code": "064736103",
            "telephone_number": "203-288-2886",
            "fax_number": "203-288-2576"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GONTARZ",
        "first_name": "BRENDAN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-04-04",
        "last_updated": "2026-07-27",
        "certification_date": "2026-07-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2086S0129X",
            "taxonomy_group": "",
            "desc": "Surgery, Vascular Surgery",
            "state": "CT",
            "license": "75034",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Gidon Feivel Goldenberg, M.D.
• Max Goldstein, MS, RDN
• Meghan Golia
• Rebecca L Gomes, LMT
• Norma Gomez, DDS
• Tamika Gordon, CERTIFIED HAIR LOSS
• George M Goshua, M.D.
• Liesel L. Gould, M.D.
• Ashwin Govindan
• Sophie Grant

• Vascular Surgery Physician in North Haven, CT
• Providers in North Haven, CT by specialty
• Vascular Surgery Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 27, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.