NPIMap

Individual provider Active NPI

Brennan Barrett, D.O.

  • Diagnostic Radiology Physician
  • Chicago, IL
National Provider Identifier
1669847307
Registry record updated Feb 9, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
036157616 Issued in IL
Practice address
1500 S Fairfield Ave
Chicago, IL 60608-1782
Phone
(773) 542-2000
NPI assigned
Dec 7, 2015
Last updated
Feb 9, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 9, 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 036157616 IL Primary
Diagnostic Radiology Physician 2085R0202X UO4530 FL

Addresses

Primary practice location

1500 S Fairfield Ave
Chicago, IL 60608-1782

Mailing address

3605 NW Mediterranean LN
Jensen Beach, FL 34957-3106

Other practice location 1

3605 NW Mediterranean Ln
Jensen Beach, FL 34957-3106
Phone (414) 840-0985

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL, NE2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20211021002351 IL Practitioner - Interventional Radiology 1850644923 Reassigns benefits to 6 organizations
I20241028001636 NE Practitioner - Diagnostic RadiologyPractitioner - Interventional Radiology 1850644923 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Interventional Radiology
Education
Other, 2015
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
St Bernard HospitalGroup PAC ID 1759361579, 43 clinicians
Loretto HospitalGroup PAC ID 5193725893, 38 clinicians
Mount Sinai Community FoundationGroup PAC ID 5991600405, 247 clinicians

Practice addresses (Care Compare)

326 W 64TH St
Chicago, IL 60621-3114
Phone (773) 962-3900

645 S Central Ave
Chicago, IL 60644-5059
Phone (773) 854-5567

California Ave at 15TH St
Chicago, IL 60608-1858
Phone (773) 542-2000

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
289858NYMDLicensed Practical Nurse
UO4530FLMDDiagnostic Radiology Physician
036157616ILMDDiagnostic Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Rockford Health Physicians CurrentSince Nov 26, 2023 Accepting new patients
Mount Sinai Community Foudation CurrentSince Mar 1, 2023 Accepting new patients
Illinois Diagnostic and Interventional Radiology PLLC Diagnostic Radiology CurrentSince Jul 21, 2026 Accepting new patients
Mount Sinai Community Foundation Current Accepting new patients
Loretto Hospital CurrentSince Dec 12, 2023 Accepting new patients
Cook County Current Accepting new patients
St Bernard Hospital CurrentSince Aug 13, 2023 Accepting new patients
Imaging Associates of Indiana, PC Diagnostic Radiology CurrentSince Aug 9, 2023 Accepting new patients
St Bernard Hospital & Health Care Center CurrentSince Aug 13, 2023 Accepting new patients
Box Butte General Hospital Current Accepting new patients
Cook County Diagnostic Radiology CurrentSince Apr 19, 2024 Accepting new patients
Cook County CurrentSince Apr 19, 2024 Accepting new patients
Loretto Hospital CurrentSince Dec 12, 2023 Accepting new patients
Mount Sinai Community Foundation CurrentSince Mar 1, 2023 Accepting new patients
Regional West Medical Center Diagnostic Radiology CurrentSince Oct 1, 2024 Accepting new patients

Locations

1500 S Fairfield Ave
Chicago, IL 60608
Phone (773) 257-5701

1901 W Harrison St
Chicago, IL 60612
Phone (312) 864-5100

26460 Network Pl
Chicago, IL 60673
Phone (708) 786-2900

29624 Network Pl
Chicago, IL 60673
Phone (608) 741-7652

326 W 64th St
Chicago, IL 60621
Phone (773) 962-3900

500 E 51st St
Chicago, IL 60615
Phone (312) 572-2000

645 S Central Ave
Chicago, IL 60644
Phone (773) 626-4300

7435 W Talcott Ave
Chicago, IL 60631
Phone (773) 467-9977

1 Ingalls Dr
Harvey, IL 60426
Phone (708) 333-2300

2300 N Rockton Ave
Rockford, IL 61103

8201 E Riverside Blvd
Rockford, IL 61114
Phone (815) 971-4066

2101 Box Butte Ave
Alliance, NE 69301
Phone (308) 762-6660

4021 Avenue B
Scottsbluff, NE 69361
Phone (308) 630-1384

Interoperability endpoints

  • Direct secure messaging: brennan.barrett.p1@direct.mmc.nextgenshare.com

Organizations & group practices 15

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 15

Hospital & facility affiliations 8

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": "1449446400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770595200000",
    "number": "1669847307",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3605 NW MEDITERRANEAN LN",
            "city": "JENSEN BEACH",
            "state": "FL",
            "postal_code": "349573106"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 S FAIRFIELD AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606081782",
            "telephone_number": "773-542-2000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3605 NW Mediterranean Ln",
            "address_purpose": "LOCATION",
            "city": "Jensen Beach",
            "state": "FL",
            "postal_code": "349573106",
            "country_code": "US",
            "telephone_number": "414-840-0985",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BARRETT",
        "first_name": "BRENNAN",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-12-07",
        "last_updated": "2026-02-09",
        "certification_date": "2026-02-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "IL",
            "license": "036157616",
            "primary": true
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "FL",
            "license": "UO4530",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

Verify at the official NPI Registry.