DR. OLISA KINGSLEY EZEGWU MD
NPI 1871089516
Internal Medicine - Cardiovascular Disease in Chicago, IL
About Dr. Olisa Kingsley Ezegwu Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. OLISA KINGSLEY EZEGWU MD (NPI 1871089516) is an individual cardiovascular disease provider in Chicago, Illinois, licensed in New York (334705) and active in the NPI registry since July 2018. He is enrolled in Medicare PECOS, is affiliated with New York-presbyterian Hospital, and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses 2
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. Olisa Kingsley Ezegwu Md 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
2Medicare enrollment records show Olisa Ezegwu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Washington, DC 20007
- Reassigned Medicare billing, District of Columbia enrollment
- 3,530 clinicians in this Medicare group
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- 3,922 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
New York-Presbyterian Hospital
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60612 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.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHICAG, IL 60612
CHICAGO, IL 60612
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 Olisa Ezegwu's NPI number?
The NPI number for Olisa Ezegwu is 1871089516. It was assigned to this individual provider in the NPPES registry on July 5, 2018.
Where is Olisa Ezegwu located?
Olisa Ezegwu practices at 1901 W Harrison St, Chicago, IL 60612. The listed phone number is (708) 682-5977.
What is Olisa Ezegwu's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Olisa Ezegwu enrolled in Medicare?
Yes. Olisa Ezegwu 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 Olisa Ezegwu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Olisa Ezegwu reassigns Medicare benefits to 2 organizations: Medstar Medical Group II LLC (Washington, DC) and Trustees Of Columbia University In The City Of New York (New York, NY). 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 Olisa Ezegwu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Olisa Ezegwu affiliated with any hospitals?
According to CMS data, Olisa Ezegwu is affiliated with New York-Presbyterian Hospital.
When was this NPI record last updated?
The NPPES record for Olisa Ezegwu was last updated on May 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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. Olisa Kingsley Ezegwu, MD · NPI 1871089516
Cardiovascular Disease physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since July 5, 2018.
## Identity
- **NPI:** 1871089516 (Entity type: Individual)
- **Enumerated:** July 5, 2018
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** 334705 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1901 W HARRISON ST, Chicago, IL 60612-3714
- **Phone:** (708) 682-5977
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Medstar Medical Group II LLC (NPI 1205562816, Washington, DC); Trustees Of Columbia University In The City Of New York (NPI 1508266347, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** May 22, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1871089516) · Data from the CMS NPPES public registry.