DR. OBINNA OKECHUKWU-DAVID ONYEUKWU MD
NPI 1255081006
Emergency Medicine in Saint Louis, MO
About Dr. Obinna Okechukwu-david Onyeukwu Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. OBINNA OKECHUKWU-DAVID ONYEUKWU MD (NPI 1255081006) is an individual emergency medicine provider in Saint Louis, Missouri, licensed in Missouri (2025010834) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and is a graduate of Wayne State University School Of Medicine (2022).
NPPES Registry Identity
Specialties & Licenses
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 Okechukwu-david Onyeukwu 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 Obinna Onyeukwu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 156 clinicians in this Medicare group
Saint Louis, MO 63136
- Reassigned Medicare billing, Missouri enrollment
- 114 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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Barnes Jewish Hospital
Acute Care Hospitals · Saint Louis, MOBarnes-Jewish West County Hospital
Acute Care Hospitals · Creve Coeur, MOChristian Hospital Northeast
Acute Care Hospitals · Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63110 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.
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
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 Onyeukwu's NPI number?
The NPI number for Obinna Onyeukwu is 1255081006. It was assigned to this individual provider in the NPPES registry on March 25, 2022.
Where is Obinna Onyeukwu located?
Obinna Onyeukwu practices at 1 Barnes Jewish Hospital Plz Dept Emergency Med, Saint Louis, MO 63110. The listed phone number is (314) 362-9123.
What is Obinna Onyeukwu's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Obinna Onyeukwu enrolled in Medicare?
Yes. Obinna Onyeukwu 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 Onyeukwu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Obinna Onyeukwu reassigns Medicare benefits to 2 organizations: Washington University (Saint Louis, MO) and Washington University Community Specialists, LLC (Saint Louis, MO). 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 Onyeukwu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Obinna Onyeukwu affiliated with any hospitals?
According to CMS data, Obinna Onyeukwu is affiliated with Barnes Jewish Hospital, Barnes-Jewish West County Hospital and Christian Hospital Northeast.
When was this NPI record last updated?
The NPPES record for Obinna Onyeukwu was last updated on July 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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 Okechukwu-David Onyeukwu, MD · NPI 1255081006
Emergency Medicine physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since March 25, 2022.
## Identity
- **NPI:** 1255081006 (Entity type: Individual)
- **Enumerated:** March 25, 2022
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 2025010834 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 BARNES JEWISH HOSPITAL PLZ, DEPT EMERGENCY MED, Saint Louis, MO 63110-1003
- **Phone:** (314) 362-9123 · **Fax:** (314) 362-0478
## 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): Washington University (NPI 1104866656, Saint Louis, MO); Washington University Community Specialists, LLC (NPI 1922812254, Saint Louis, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Wayne State University School Of Medicine, class of 2022
## Record status
- **NPPES last updated:** July 15, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1255081006) · Data from the CMS NPPES public registry.