Sean Mahoney, MD
NPI 1548900863 · Nephrology Physician · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sean Mahoney, MD is a Nephrology Physician provider in Chicago, IL (NPI 1548900863).
Provider details
- NPI number
- 1548900863
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036.175406 (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
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2022-04-01
- Last updated
- 2025-06-18
- Certified
- 2025-06-18
Frequently asked questions
- What is Sean Mahoney's NPI number?
- Sean Mahoney's National Provider Identifier (NPI) is 1548900863, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean Mahoney's specialty?
- Sean Mahoney is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Sean Mahoney located?
- Sean Mahoney's practice location on file with NPPES is 251 E Huron St, Chicago, IL 60611-2908.
- What is Sean Mahoney's phone number?
- The practice phone number listed in the NPPES registry for Sean Mahoney is (312) 926-4880.
- Does Sean Mahoney accept Medicare?
- Sean Mahoney is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sean Mahoney's NPI active?
- Yes — Sean Mahoney's NPI (1548900863) is active in the NPPES registry as of the last update on 2025-06-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.