Connor Tierney, MD
NPI 1831651520 · Diagnostic Radiology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Connor Tierney, MD is a Diagnostic Radiology Physician provider in Chicago, IL (NPI 1831651520).
Provider details
- NPI number
- 1831651520
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036.170204 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (2)
- 1740 W Taylor StChicago, IL 60612-7232Phone: (866) 600-2273
- 5841 S Maryland Ave # 2026Chicago, IL 60637-1443Phone: (773) 702-3550Fax: (773) 702-1161
Registry dates
- Enumerated
- 2019-04-02
- Last updated
- 2024-06-25
- Certified
- 2024-06-25
Frequently asked questions
- What is Connor Tierney's NPI number?
- Connor Tierney's National Provider Identifier (NPI) is 1831651520, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Connor Tierney's specialty?
- Connor Tierney is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Connor Tierney located?
- Connor Tierney's practice location on file with NPPES is 676 N Saint Clair St Ste 800, Chicago, IL 60611-2978.
- What is Connor Tierney's phone number?
- The practice phone number listed in the NPPES registry for Connor Tierney is (312) 695-5753.
- Does Connor Tierney accept Medicare?
- Connor Tierney is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Connor Tierney's NPI active?
- Yes — Connor Tierney's NPI (1831651520) is active in the NPPES registry as of the last update on 2024-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.