Onyekachi Ogbonna, M.D.
Medical Oncology Physician · Portland, OR
Onyekachi Ogbonna, M.D. is a medical oncology physician with a practice address in Portland, Oregon, and NPI 1992090112, issued on Jun 15, 2011. Check the license (Oregon MD198478, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Onyekachi Ogbonna
- Credential
- M.D.
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License numbers
- MD198478 OR
MD460052 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1130 NW 22ND Ave, Portland, OR 97210
- Phone
- (570) 326-8470
- Enumerated
- Jun 15, 2011
- Record last updated
- Sep 2, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200724000489); accepts Medicare assignment
- Medical or professional school
- Howard University College Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 107 in Oregon → Look up another NPI →
Also registered at 1130 NW 22ND Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephen Baugh, MDInternal Medicine Physician1972577740
- Frank Baumeister, M.D.Specialist1194779645
- Roland Bennetts, M.D.Specialist1902851132
- Jeffrey Buehler, M.D.Specialist1164534608
- Deidre Burton, MDPediatrics Physician1033111422
- Vladimir ChernyshevLicensed Practical Nurse1366967879
Verify Onyekachi Ogbonna in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD198478Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% more Medicare Part D claims than the average medical oncology physician in 2024
1,217 Medicare Part D claims for 173 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims. 72 claims were for opioids.
Most prescribed
- Abiraterone Acetate100 claims
- Prednisone86 claims
- Tamoxifen Citrate72 claims
- Letrozole58 claims
- Anastrozole51 claims
- Ibrance51 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.
The MIPS final score for 2023 (Medicare payment program): 97.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $149.38
2 payments; by number, the most common kind was education; the largest payer was Tela Bio, Inc. The 3,343 providers of this specialty with any payment received $11,773.47 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
- University Professional ServicesPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Onyekachi Ogbonna among 107 medical oncology physician records in Oregon
Onyekachi Ogbonna, M.D. is one of 107 medical oncology physician records with a practice address in Oregon. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 70% of them.
- NPI issued2011 · 70% of these records are older, 27% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2011 · median 2003 among the 76 with a school on file
- Record last updated2020 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in Oregon
There are 107 medical oncology physician records in Oregon.
All 107 in Oregon → Every provider in Portland → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Matthew Blackburn, M.D.Portland, OR 972101376076828
- Stephanie Chu, M.D., M.P.H.Portland, OR 972101619401486
- Hagen Kennecke, MD, MHA, FRCPCPortland, OR 972101578090270
- Apurva Pandey, M.DPortland, OR 972101023351137
- Todd Crocenzi, M.D.Portland, OR 972131336130806
- Brendan Curti, MDPortland, OR 972131861494650
- Bruce Dana, M.D.Portland, OR 972131558364570
- Mary Gearn, MDPortland, OR 972131972532836
Common questions
What is Onyekachi Ogbonna, M.D.'s NPI number?
Onyekachi Ogbonna, M.D.'s National Provider Identifier (NPI) is 1992090112, issued on Jun 15, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Onyekachi Ogbonna, M.D. located?
The NPPES record lists a practice address at 1130 NW 22ND Ave, Portland, OR, 97210. Phone: (570) 326-8470. Providers update this record themselves, so call before visiting.
How can I verify Onyekachi Ogbonna, M.D.'s license?
NPPES lists Oregon license number MD198478, 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 Onyekachi Ogbonna, M.D. prescribe under Medicare Part D?
In 2024, Onyekachi Ogbonna, M.D. had 1,217 Medicare Part D claims for 173 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
What is Onyekachi Ogbonna, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.