DR. OBIORA EDWARD ONWUAMEZE MD, MS, PHD
NPI 1386806453
Psychiatry & Neurology - Psychiatry in Springfield, IL
About Dr. Obiora Edward Onwuameze Md, Ms, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. OBIORA EDWARD ONWUAMEZE MD, MS, PHD (NPI 1386806453) is an individual psychiatry provider in Springfield, Illinois, licensed in Illinois (036-130454) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with St Johns Hospital, and is a graduate of Other (1990).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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. Obiora Edward Onwuameze Md, Ms, Phd 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 Obiora Onwuameze reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Springfield, IL 62702
- Reassigned Medicare billing, Illinois enrollment
- 645 clinicians in this Medicare group
Springfield, IL 62702
- Reassigned Medicare billing, Illinois enrollment
- 262 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.
Areas of Expertise CMS Part B claims 8
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Johns Hospital
Acute Care Hospitals · Springfield, ILMemorial Medical Center
Acute Care Hospitals · Springfield, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 62702 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
SPRINGFIELD, IL 62702
SPRINGFIELD, IL 62702
SPRINGFIELD, IL 62702
SPRINGFIELD, IL 62702
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 Obiora Onwuameze's NPI number?
The NPI number for Obiora Onwuameze is 1386806453. It was assigned to this individual provider in the NPPES registry on June 30, 2008.
Where is Obiora Onwuameze located?
Obiora Onwuameze practices at 901 W Jefferson St, Springfield, IL 62702. The listed phone number is (217) 545-8229.
What is Obiora Onwuameze's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Obiora Onwuameze enrolled in Medicare?
Yes. Obiora Onwuameze 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 Obiora Onwuameze's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Obiora Onwuameze reassigns Medicare benefits to 2 organizations: Siu Physicians & Surgeons, Inc (Springfield, IL) and Board Of Trustees Of Southern Illinois University (Springfield, IL). 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 Obiora Onwuameze's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Obiora Onwuameze affiliated with any hospitals?
According to CMS data, Obiora Onwuameze is affiliated with St Johns Hospital and Memorial Medical Center.
When was this NPI record last updated?
The NPPES record for Obiora Onwuameze was last updated on December 10, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.