Darren Ioos
NPI 1417703380 · Urology Physician · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Darren Ioos is a Urology Physician provider in Chicago, IL (NPI 1417703380).
Provider details
- NPI number
- 1417703380
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2024-04-30
- Last updated
- 2025-06-20
- Certified
- 2025-06-20
Frequently asked questions
- What is Darren Ioos's NPI number?
- Darren Ioos's National Provider Identifier (NPI) is 1417703380, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darren Ioos's specialty?
- Darren Ioos is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Darren Ioos located?
- Darren Ioos's practice location on file with NPPES is 600 S Paulina St Ste 403, Chicago, IL 60612-3806.
- What is Darren Ioos's phone number?
- The practice phone number listed in the NPPES registry for Darren Ioos is (312) 942-7100.
- Does Darren Ioos accept Medicare?
- Darren Ioos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Darren Ioos's NPI active?
- Yes — Darren Ioos's NPI (1417703380) is active in the NPPES registry as of the last update on 2025-06-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.