DR. OBINNA VICTOR OBIEKEZIE M.D.
NPI 1861844201
Internal Medicine - Critical Care Medicine in Barrington, IL
About Dr. Obinna Victor Obiekezie M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. OBINNA VICTOR OBIEKEZIE M.D. (NPI 1861844201) is an individual critical care medicine provider in Barrington, Illinois, licensed in Illinois (036.163331) and active in the NPI registry since July 2016. He is enrolled in Medicare PECOS, is affiliated with Presence St Marys Hospital, and maintains a secondary practice location in Park Ridge.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Obinna Victor Obiekezie M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
13Medicare enrollment records show Obinna Obiekezie reassigns Medicare billing to 13 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Elgin, IL 60123
- Reassigned Medicare billing, Illinois enrollment
- 99 clinicians in this Medicare group
Park Ridge, IL 60068
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Advocate Health And Hospitals Corporation
- 4,870 clinicians in this Medicare group
Lima, OH 45804
- Reassigned Medicare billing, Ohio enrollment
- 84 clinicians in this Medicare group
Troy, OH 45373
- Reassigned Medicare billing, Ohio enrollment
- 405 clinicians in this Medicare group
Vandalia, OH 45377
- Reassigned Medicare billing, Ohio enrollment
- 744 clinicians in this Medicare group
Dayton, OH 45409
- Reassigned Medicare billing, Ohio enrollment
- 270 clinicians in this Medicare group
Middletown, OH 45005
- Reassigned Medicare billing, Ohio enrollment
- 263 clinicians in this Medicare group
Springfield, OH 45504
- Reassigned Medicare billing, Ohio enrollment
- 49 clinicians in this Medicare group
Springfield, OH 45504
- Reassigned Medicare billing, Ohio enrollment
- 494 clinicians in this Medicare group
Evansville, IN 47714
- Reassigned Medicare billing, Indiana enrollment
- 34 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Presence St Marys Hospital
Acute Care Hospitals · Kankakee, ILPresence Mercy Medical Center
Acute Care Hospitals · Aurora, ILAdvocate Good Shepherd Hospital
Acute Care Hospitals · Barrington, ILAscension St Vincent Evansville
Acute Care Hospitals · Evansville, INPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60010 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Obinna Obiekezie's NPI number?
The NPI number for Obinna Obiekezie is 1861844201. It was assigned to this individual provider in the NPPES registry on July 11, 2016.
Where is Obinna Obiekezie located?
Obinna Obiekezie practices at 450 W Highway 22 Ste Aip, Barrington, IL 60010. The listed phone number is (708) 283-5500.
What is Obinna Obiekezie's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Obinna Obiekezie enrolled in Medicare?
Yes. Obinna Obiekezie is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Obinna Obiekezie's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Obinna Obiekezie reassigns Medicare benefits to 13 organizations: Cep America Illinois Intensivists (Elgin, IL), Lutheran General Hospital (Park Ridge, IL), Midwest Hospitalist Physicians LLP (Lima, OH), Upper Valley Professional Corporation (Troy, OH), Mvhe Inc (Vandalia, OH) and 8 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Obinna Obiekezie's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Obinna Obiekezie accept?
Health plans from CareSource, Oscar Health, Oscar Health Maintenance Organization of Florida and Oscar Insurance Company list Obinna Obiekezie as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Obinna Obiekezie affiliated with any hospitals?
According to CMS data, Obinna Obiekezie is affiliated with Presence St Marys Hospital, Presence Mercy Medical Center, Advocate Good Shepherd Hospital and Ascension St Vincent Evansville.
When was this NPI record last updated?
The NPPES record for Obinna Obiekezie was last updated on May 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Obinna Victor Obiekezie, M.D. · NPI 1861844201
Critical Care Medicine physician in Barrington, Illinois. Individual provider, active in the CMS NPPES registry since July 11, 2016.
## Identity
- **NPI:** 1861844201 (Entity type: Individual)
- **Enumerated:** July 11, 2016
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 036.163331 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 450 W HIGHWAY 22 STE AIP, Barrington, IL 60010-1919
- **Phone:** (708) 283-5500
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 13 organizations under Medicare reassignment (form CMS-855R): Cep America Illinois Intensivists (NPI 1821641499, Elgin, IL); Lutheran General Hospital (NPI 1801809306, Park Ridge, IL); Midwest Hospitalist Physicians LLP (NPI 1891242319, Lima, OH); Upper Valley Professional Corporation (NPI 1407872518, Troy, OH); Mvhe Inc (NPI 1104879097, Vandalia, OH); and 8 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** May 15, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1861844201) · Data from the CMS NPPES public registry.