Brennan Barrett, D.O.
Diagnostic Radiology Physician · Chicago, IL
Brennan Barrett, D.O. is a diagnostic radiology physician with a practice address in Chicago, Illinois, and NPI 1669847307, issued on Dec 7, 2015. Check the license (Illinois 036157616, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Brennan Barrett
- Credential
- D.O.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License numbers
- 036157616 IL
UO4530 FL
Self-reported in NPPES; status is on the state search - Practice location
- 1500 S Fairfield Ave, Chicago, IL 60608
- Phone
- (773) 542-2000
- Enumerated
- Dec 7, 2015
- Record last updated
- Feb 9, 2026
- Medicare enrollment
- Enrolled (PECOS I20211021002351); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 1,874 in Illinois → Look up another NPI →
Also registered at 1500 S Fairfield Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Olga Abreu LopezFamily Medicine Physician1891525267
- Eliz Achhami, MDInternal Medicine Physician1194613919
- Candace Acuff, MD, MPHSurgical Critical Care Physician1235845025
Verify Brennan Barrett in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036157616Check 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): 80.8 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: $556.49
21 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. The 8,048 providers of this specialty with any payment received $2,488.38 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.
3 hospitals and group practices
- St Bernard HospitalChicago, IL · Acute Care Hospitals1 of 5 stars
- Loretto HospitalChicago, IL · Acute Care Hospitals
- Mount Sinai Community FoundationChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Brennan Barrett among 1,874 diagnostic radiology physician records in Illinois
Brennan Barrett, D.O. is one of 1,874 diagnostic radiology physician records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 76% of them.
- NPI issued2015 · 76% of these records are older, 22% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2015 · median 2004 among the 1,201 with a school on file
- Record last updated2026 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in Illinois
There are 1,874 diagnostic radiology physician records in Illinois.
All 1,874 in Illinois → Every provider in Chicago → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Ammar Al-Saraf, M.D.Chicago, IL 606081720423312
- Ameeta Bajaj, M.D.Chicago, IL 606081114910387
- Timothy Cotter, M.D.Chicago, IL 606081790769511
- John Gall, M.D.Chicago, IL 606081376543900
- Erica Guzalo, M.D.Chicago, IL 606081861491250
- Ali HabibChicago, IL 606081871984823
- Alan Hecht, M.D.Chicago, IL 606081689674335
- Brian Herman, M.D.Chicago, IL 606081831120278
Common questions
What is Brennan Barrett, D.O.'s NPI number?
Brennan Barrett, D.O.'s National Provider Identifier (NPI) is 1669847307, issued on Dec 7, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Brennan Barrett, D.O. located?
The NPPES record lists a practice address at 1500 S Fairfield Ave, Chicago, IL, 60608. Phone: (773) 542-2000. Providers update this record themselves, so call before visiting.
How can I verify Brennan Barrett, D.O.'s license?
NPPES lists Illinois license number 036157616, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Brennan Barrett, D.O.'s MIPS final score?
The 2023 MIPS final score is 80.8 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.