Brennan Barrett, D.O.
NPI 1669847307 · Diagnostic Radiology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Interventional Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brennan Barrett, D.O. is a Diagnostic Radiology Physician provider in Chicago, IL (NPI 1669847307).
Provider details
- NPI number
- 1669847307
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 036157616 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,074 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 279 | $9 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 125 | $86 |
| X-Ray of Abdomen, 1 View74018 | 65 | $9 |
| X-Ray of Chest, 2 Views71046 | 63 | $10 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 62 | $83 |
| Ultrasound Study of One Arm Or Leg Veins With Compression and Maneuvers93971 | 49 | $21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$556 across 21 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 3605 Nw Mediterranean LnJensen Beach, FL 34957-3106Phone: (414) 840-0985
Registry dates
- Enumerated
- 2015-12-07
- Last updated
- 2026-02-09
- Certified
- 2026-02-09
Frequently asked questions
- What is Brennan Barrett's NPI number?
- Brennan Barrett's National Provider Identifier (NPI) is 1669847307, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brennan Barrett's specialty?
- Brennan Barrett is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Brennan Barrett located?
- Brennan Barrett's practice location on file with NPPES is 1500 S Fairfield Ave, Chicago, IL 60608-1782.
- What is Brennan Barrett's phone number?
- The practice phone number listed in the NPPES registry for Brennan Barrett is (773) 542-2000.
- Does Brennan Barrett accept Medicare?
- Brennan Barrett is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brennan Barrett's NPI active?
- Yes — Brennan Barrett's NPI (1669847307) is active in the NPPES registry as of the last update on 2026-02-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.