Individual provider Active NPI

Michael Brant-Zawadzki, MD

  • Diagnostic Radiology Physician
  • Newport Beach, CA
National Provider Identifier
1821042532
Registry record updated May 4, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
G31971 Issued in CA
Practice address
One Hoag Drive
Newport Beach, CA 92663-4162
Phone
(949) 764-5570
Fax
(949) 263-0473
NPI assigned
May 19, 2006
Last updated
May 4, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 4, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X G31971 CA Primary
Diagnostic Radiology Physician 2085R0202X 79828 CT

Addresses

Primary practice location

One Hoag Drive
Newport Beach, CA 92663-4162

Mailing address

Dept la 21555
Pasadena, CA 91185-1555
Phone (949) 764-5570

Other identifiers 2

IdentifierTypeStateIssuer
00G319710MedicaidCA
00G319710OtherCABLUE SHIELD

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, CT2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20080506000873 CA Practitioner - Diagnostic Radiology 8628000346 Reassigns benefits to 6 organizations
I20260121000214 CT Practitioner - Diagnostic Radiology 8628000346 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Other, 1975
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Newport Harbor Radiology Associates Medical Group IncGroup PAC ID 1850285735, 69 clinicians
Connecticut Imaging Partners LLCGroup PAC ID 4183649098, 105 clinicians
Farmington Imaging Center LLCGroup PAC ID 7719265651, 68 clinicians
Jefferson Radiology PCGroup PAC ID 8729982525, 121 clinicians
Newport Center Radiology Associates Medical Group IncGroup PAC ID 7810800166, 60 clinicians

Practice addresses (Care Compare)

1 Hoag Dr
Newport Beach, CA 92663-4162
Phone (949) 645-3534

100 Hazard Ave
Suite 100
Enfield, CT 06082-5447
Phone (860) 289-3375

1221 W Coast Hwy
Apt 413
Newport Beach, CA 92663-5055
Phone (860) 289-3375

15000 Kensington Park Dr
Suite 150
Tustin, CA 92782-1836
Phone (714) 477-8340

16200 Sand Canyon Ave
Irvine, CA 92618-3714
Phone (949) 764-4624

16250 Sand Canyon Ave
Irvine, CA 92618-3714
Phone (949) 365-3534

19582 Beach Blvd
Suite 160
Huntington Beach, CA 92648-2996
Phone (714) 378-4992

360 San Miguel Dr
Suite 105And106
Newport Beach, CA 92660-7853
Phone (949) 365-3534

399 Farmington Ave
Suite 130
Farmington, CT 06032-1944
Phone (860) 289-3375

80 Semour St
Hartford, CT 06106-3315
Phone (860) 545-2870

993 Avenida Pico
Suite 110
San Clemente, CA 92673-3908
Phone (949) 764-5573

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
95.45 of 100Reported as group
Quality
100
Improvement activities
40
Cost
84.82

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
G31971CAMDDiagnostic Radiology Physician
79828CTMDDiagnostic Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Newport Center Radiology Associates Medical Group Inc Diagnostic Radiology CurrentSince May 19, 2009 Accepting new patients
Newport Harbor Radiology Associates Medical Group, Inc Diagnostic Radiology CurrentSince Jul 1, 1986 Accepting new patients
Farmington Imaging Center, LLC Diagnostic Radiology CurrentSince Jan 18, 2025 Accepting new patients
Jefferson Radiology, PC Diagnostic Radiology CurrentSince Nov 10, 2024 Accepting new patients
Tic, LLC Diagnostic Radiology CurrentSince Jun 2, 2025 Accepting new patients
Connecticut Imaging Partners, LLC Diagnostic Radiology CurrentSince Jan 23, 2025 Accepting new patients
Windham Community Memorial Hospital, Inc. Past Accepting new patients
Stanford Hospital and Clinics Past Accepting new patients
Lucile Salter Packard Children's Hospital at Stanford Past Accepting new patients
Hoag Memorial Hospital Presbyterian Past Accepting new patients
Tennessee Advanced Neurodiagnostic Institute, Inc. (Tanii) Past Accepting new patients
Hartford Hospital Past Accepting new patients
Vanderbilt St. Thomas Imaging, GP Diagnostic Radiology Past Accepting new patients

Locations

1470 Encinitas Blvd
Encinitas, CA 92024

16200 Sand Canyon Ave
Irvine, CA 92618
Phone (949) 753-2000

18301 Von Karman Ave
Ste 310
Irvine, CA 92612
Phone (949) 645-3534

1 Hoag Dr
Newport Beach, CA 92663
Phone (877) 742-4624

360 San Miguel Dr
#105106
Newport Beach, CA 92660

360 San Miguel Dr
Ste 1
Newport Beach, CA 92660
Phone (949) 365-3534

455 Old Newport Blvd
Ste 101
Newport Beach, CA 92663
Phone (949) 574-8200

Dept LA 21555
Pasadena, CA 91185
Phone (949) 236-8620

Dept LA 21705
Pasadena, CA 91185

100 Hazard Ave
Ste 100
Enfield, CT 06082
Phone (860) 696-2380

399 Farmington Ave
Lowr 1
Farmington, CT 06032

399 Farmington Ave
Ste 130
Farmington, CT 06032

80 Seymour St
Hartford, CT 06106
Phone (860) 545-2249

85 Seymour St
Ste 200
Hartford, CT 06106
Phone (860) 246-6589

6 Fieldstone Cmns
Ste E
Tolland, CT 06084
Phone (860) 896-4847

1260 Silas Deane Hwy
Ste 104
Wethersfield, CT 06109
Phone (860) 563-7844

Interoperability endpoints

  • FHIR API: https://app.meldrx.com/api/fhir/ei-jefferson

Organizations & group practices 13

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.

View all 13

Hospital & facility affiliations 3

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1147996800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777852800000",
    "number": "1821042532",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "DEPT LA 21555",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911851555",
            "telephone_number": "949-764-5570",
            "fax_number": "949-263-1639"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "ONE HOAG DRIVE",
            "city": "NEWPORT BEACH",
            "state": "CA",
            "postal_code": "926634162",
            "telephone_number": "949-764-5570",
            "fax_number": "949-263-0473"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BRANT-ZAWADZKI",
        "first_name": "MICHAEL",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-19",
        "last_updated": "2026-05-04",
        "certification_date": "2026-05-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "G31971",
            "primary": true
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CT",
            "license": "79828",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G319710",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE SHIELD",
            "identifier": "00G319710",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Newport Beach, CA

Sources for this page

Verify at the official NPI Registry.