John Biren-Fetz, DO
NPI 1255821120 · Diagnostic Radiology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Biren-Fetz, DO is a Diagnostic Radiology Physician provider in Chicago, IL (NPI 1255821120).
Provider details
- NPI number
- 1255821120
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- R3011 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,067 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 195 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 72 | $39 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 44 | $9 |
| Screening Mammography77067 | 43 | $140 |
| Screening 3d Breast Mammography77063 | 42 | $55 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 40 | $86 |
Practice location
Mailing address
Additional practice locations (1)
- 1501 N Campbell Ave Rm 6336Tucson, AZ 85724-5040Phone: (520) 626-8818
Registry dates
- Enumerated
- 2018-05-15
- Last updated
- 2024-08-12
- Certified
- 2024-08-12
Frequently asked questions
- What is John Biren-Fetz's NPI number?
- John Biren-Fetz's National Provider Identifier (NPI) is 1255821120, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Biren-Fetz's specialty?
- John Biren-Fetz is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Biren-Fetz located?
- John Biren-Fetz's practice location on file with NPPES is 1740 W Taylor St # Mc931, Chicago, IL 60612-7232.
- What is John Biren-Fetz's phone number?
- The practice phone number listed in the NPPES registry for John Biren-Fetz is (312) 996-0235.
- Does John Biren-Fetz accept Medicare?
- John Biren-Fetz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Biren-Fetz's NPI active?
- Yes — John Biren-Fetz's NPI (1255821120) is active in the NPPES registry as of the last update on 2024-08-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.