Obinna Obiekezie, M.D.
NPI 1861844201 · Critical Care Medicine (Internal Medicine) Physician · Barrington, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Obinna Obiekezie, M.D. is a Critical Care Medicine (Internal Medicine) Physician provider in Barrington, IL (NPI 1861844201).
Provider details
- NPI number
- 1861844201
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036.163331 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 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 (1)
- 1775 Dempster StPark Ridge, IL 60068-1143Phone: (216) 861-6200Fax: (847) 723-2210
Registry dates
- Enumerated
- 2016-07-11
- Last updated
- 2026-05-15
- Certified
- 2026-05-15
Frequently asked questions
- What is Obinna Obiekezie's NPI number?
- Obinna Obiekezie's National Provider Identifier (NPI) is 1861844201, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Obinna Obiekezie's specialty?
- Obinna Obiekezie is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Obinna Obiekezie located?
- Obinna Obiekezie's practice location on file with NPPES is 450 W Highway 22 Ste Aip, Barrington, IL 60010-1919.
- What is Obinna Obiekezie's phone number?
- The practice phone number listed in the NPPES registry for Obinna Obiekezie is (708) 283-5500.
- Does Obinna Obiekezie accept Medicare?
- Obinna Obiekezie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Obinna Obiekezie's NPI active?
- Yes — Obinna Obiekezie's NPI (1861844201) is active in the NPPES registry as of the last update on 2026-05-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.