IKE ARMSTRONG ONWERE MD
NPI 1467454025
Internal Medicine - Hematology & Oncology in Newark, DE
About Ike Armstrong Onwere Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
IKE ARMSTRONG ONWERE MD (NPI 1467454025) is an individual hematology & oncology provider in Newark, Delaware, licensed in Delaware (C1-0029874) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Mercy Health - Tiffin Hospital, and is a graduate of Wright State University Boonshoft School Of Medicine (2001).
NPPES Registry Identity
Specialties & Licenses
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
Ike Armstrong Onwere 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 Ike Onwere reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Findlay, OH 45840
- Reassigned Medicare billing, Ohio enrollment
- 133 clinicians in this Medicare group
Aurora, CO 80018
- Reassigned Medicare billing, Colorado enrollment
- 1,270 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 6
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Health - Tiffin Hospital
Acute Care Hospitals · Tiffin, OHBlanchard Valley Hospital
Acute Care Hospitals · Findlay, OHBluffton Hospital
Critical Access Hospitals · Bluffton, OHWyandot Memorial Hospital
Critical Access Hospitals · Upper Sandusky, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19713 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEWARK, DE 19713
NEWARK, DE 19713
NEWARK, DE 19713
NEWARK, DE 19713
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 Ike Onwere's NPI number?
The NPI number for Ike Onwere is 1467454025. It was assigned to this individual provider in the NPPES registry on August 12, 2005.
Where is Ike Onwere located?
Ike Onwere practices at 4701 Ogletown Stanton Rd Ste 2300, Newark, DE 19713. The listed phone number is (302) 731-7782.
What is Ike Onwere's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Ike Onwere enrolled in Medicare?
Yes. Ike Onwere 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 Ike Onwere's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ike Onwere reassigns Medicare benefits to 2 organizations: Blanchard Valley Regional Health Center (Findlay, OH) and Intermountain Medical Group Denver, LLC (Aurora, CO). 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 Ike Onwere's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ike Onwere accept?
Health plans from Anthem Blue Cross and Blue Shield, CareSource, MedMutual, Mending Health and Molina Healthcare list Ike Onwere 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 Ike Onwere affiliated with any hospitals?
According to CMS data, Ike Onwere is affiliated with Mercy Health - Tiffin Hospital, Blanchard Valley Hospital, Bluffton Hospital and Wyandot Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Ike Onwere was last updated on September 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days 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.
# Ike Armstrong Onwere, MD · NPI 1467454025
Hematology & Oncology physician in Newark, Delaware. Individual provider, active in the CMS NPPES registry since August 12, 2005.
## Identity
- **NPI:** 1467454025 (Entity type: Individual)
- **Enumerated:** August 12, 2005
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** C1-0029874 (Delaware)
- **Sole proprietor:** No
## Practice location
- **Address:** 4701 OGLETOWN STANTON RD STE 2300, Newark, DE 19713-7010
- **Phone:** (302) 731-7782 · **Fax:** (302) 738-5917
## 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): Blanchard Valley Regional Health Center (NPI 1083665251, Findlay, OH); Intermountain Medical Group Denver, LLC (NPI 1053189472, Aurora, CO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Wright State University Boonshoft School Of Medicine, class of 2001
## Record status
- **NPPES last updated:** September 22, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1467454025) · Data from the CMS NPPES public registry.