Onyekachi Ezinna Nnabue, MD
Otolaryngology Physician · Portland, OR
Onyekachi Ezinna Nnabue, MD is an otolaryngology physician with a practice address in Portland, Oregon, and NPI 1770167769, issued on May 6, 2021. Check the license (Oregon MD230411, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Onyekachi Ezinna Nnabue
- Credential
- MD
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- MD230411 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3181 SW Sam Jackson Park RD, Portland, OR 97239
- Phone
- (503) 494-3656
- Enumerated
- May 6, 2021
- Record last updated
- Jul 14, 2026
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 164 in Oregon → Look up another NPI →
Also registered at 3181 SW Sam Jackson Park RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Onyekachi Ezinna Nnabue in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD230411Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average otolaryngology physician in 2024
34 Medicare Part D claims for 21 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
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: $93.46
4 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 6,429 providers of this specialty with any payment received $1,922.50 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.
Onyekachi Ezinna Nnabue among 164 otolaryngology physician records in Oregon
Onyekachi Ezinna Nnabue, MD is one of 164 otolaryngology physician records with a practice address in Oregon. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 96% of them.
- NPI issued2021 · 96% of these records are older, 1% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2026 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Oregon
There are 164 otolaryngology physician records in Oregon.
All 164 in Oregon → Every provider in Portland → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Peter Andersen, MDPortland, OR 972391730194234
- James Cohen, MDPortland, OR 972391093722910
- Ted Cook, MDPortland, OR 972391326055211
- Michael Egans, MDPortland, OR 972391336226711
- Paul Flint, M.D.Portland, OR 972391669414579
- Timothy Hullar, MDPortland, OR 972391760408991
- Derek Lam, MD, MPHPortland, OR 972391104938091
- Yael Raz, MDPortland, OR 972391235104720
Common questions
What is Onyekachi Ezinna Nnabue, MD's NPI number?
Onyekachi Ezinna Nnabue, MD's National Provider Identifier (NPI) is 1770167769, issued on May 6, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Onyekachi Ezinna Nnabue, MD located?
The NPPES record lists a practice address at 3181 SW Sam Jackson Park RD, Portland, OR, 97239. Phone: (503) 494-3656. Providers update this record themselves, so call before visiting.
How can I verify Onyekachi Ezinna Nnabue, MD's license?
NPPES lists Oregon license number MD230411, 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 Ezinna Nnabue, MD prescribe under Medicare Part D?
In 2024, Onyekachi Ezinna Nnabue, MD had 34 Medicare Part D claims for 21 beneficiaries; the average among otolaryngology physician prescribers was 541. 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.