Ike Armstrong Onwere, MD
Hematology & Oncology Physician · Corvallis, OR
Ike Armstrong Onwere, MD is a hematology & oncology physician with a practice address in Corvallis, Oregon, and NPI 1467454025, issued on Aug 12, 2005. Check the license (Oregon MD150690, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ike Armstrong Onwere
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- MD150690 OR
Self-reported in NPPES; status is on the state search - Practice location
- 501 NW Elks Dr, Corvallis, OR 97330
- Phone
- (541) 768-4950
- Enumerated
- Aug 12, 2005
- Record last updated
- Mar 1, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (541) 768-4951
- Medicaid IDs
- 100768880I OK
20003300A OK - Medicare enrollment
- Enrolled (PECOS I20220630002001); accepts Medicare assignment
- Medical or professional school
- Wright State University Boonshoft School Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 138 in Oregon → Look up another NPI →
Also registered at 501 NW Elks Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ali AboosaiediPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1609498880
- Katherine Albuschat, LMTMassage Therapist1992266951
- Mary Austin-Seymour, M.D.Radiation Oncology Physician1194816843
- Michael Carrasquilla, MDRadiation Oncology Physician1245724764
- Bruce Frey, M.D.Radiation Oncology Physician1164431680
- Michael Huntington, M.D.Radiation Oncology Physician1851300370
Verify Ike Armstrong Onwere in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD150690Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,644 Medicare Part D claims for 192 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 46 claims were for opioids.
Most prescribed
- Eliquis141 claims
- Ondansetron Hcl91 claims
- Anastrozole79 claims
- Acyclovir76 claims
- Furosemide66 claims
- Prednisone59 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $245.58
9 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Blanchard Valley Regional Health CenterBluffton, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ike Armstrong Onwere among 138 hematology & oncology physician records in Oregon
Ike Armstrong Onwere, MD is one of 138 hematology & oncology physician records with a practice address in Oregon. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 82% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2001 · median 2001 among the 97 with a school on file
- Record last updated2016 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Oregon
There are 138 hematology & oncology physician records in Oregon.
All 138 in Oregon → Every provider in Corvallis → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Peter Kenyon, M.D.Corvallis, OR 973301083664338
- Stephen Neville, MDCorvallis, OR 973301912955816
- Bo Wang, MDCorvallis, OR 973301619357365
- Keith Wells, MDCorvallis, OR 973301083904304
- Nicholas Barber, MDSalem, OR 973011508033465
- Rahim Jiwani, MDSalem, OR 973011760043640
- Janelle Meyer, MDSalem, OR 973011881720068
- Charles Petrunin, M.D.Salem, OR 973011881788099
Common questions
What is Ike Armstrong Onwere, MD's NPI number?
Ike Armstrong Onwere, MD's National Provider Identifier (NPI) is 1467454025, issued on Aug 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ike Armstrong Onwere, MD located?
The NPPES record lists a practice address at 501 NW Elks Dr, Corvallis, OR, 97330. Phone: (541) 768-4950. Providers update this record themselves, so call before visiting.
How can I verify Ike Armstrong Onwere, MD's license?
NPPES lists Oregon license number MD150690, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ike Armstrong Onwere, MD prescribe under Medicare Part D?
In 2024, Ike Armstrong Onwere, MD had 1,644 Medicare Part D claims for 192 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.