Ndidi Onyejiaka, M.D.
Sports Medicine (Psychiatry & Neurology) Physician · Chicago, IL
Ndidi Onyejiaka, M.D. is a sports medicine (psychiatry & neurology) physician with a practice address in Chicago, Illinois, and NPI 1619111432, issued on Apr 23, 2009. Check the license (Illinois 036.135051, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Ndidi Onyejiaka
- Credential
- M.D.
- Primary taxonomy
- Sports Medicine (Psychiatry & Neurology) Physician 2084S0010X
- License numbers
- 036.135051 IL
MD.204979 LA
Self-reported in NPPES; status is on the state search - Practice location
- 8 S Michigan Ave, Chicago, IL 60603
- Phone
- (312) 283-3456
- Enumerated
- Apr 23, 2009
- Record last updated
- Mar 31, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (312) 380-0153
- Medicare enrollment
- Enrolled (PECOS I20140804001343); may accept Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 8 S Michigan Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mark Bell, PTPhysical Therapist1710126776
- Megan BottermanAssistant Behavior Analyst1144911405
- Lisa Bowker, PSY.D.Clinical Psychologist1730218033
- Brittany CamilloAudiologist-Hearing Aid Fitter1740619394
- Siresha Chaluvadi, M.D.Neurology Physician1770745531
- Aaron Cooper, PH.D.Psychologist1750518015
Verify Ndidi Onyejiaka in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036.135051Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average sports medicine (psychiatry & neurology) physician in 2024
208 Medicare Part D claims for 16 beneficiaries, against an average of 460 among the 3 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Bupropion Xl27 claims
- Lamotrigine18 claims
- Fluoxetine Hcl17 claims
- Duloxetine Hcl14 claims
- Alprazolam13 claims
- Dextroamphetamine-Amphet Er12 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.
Sports Medicine (Psychiatry & Neurology) Physician providers in Illinois
There are 1 sports medicine (psychiatry & neurology) physician records in Illinois.
Common questions
What is Ndidi Onyejiaka, M.D.'s NPI number?
Ndidi Onyejiaka, M.D.'s National Provider Identifier (NPI) is 1619111432, issued on Apr 23, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Ndidi Onyejiaka, M.D. located?
The NPPES record lists a practice address at 8 S Michigan Ave, Chicago, IL, 60603. Phone: (312) 283-3456. Providers update this record themselves, so call before visiting.
How can I verify Ndidi Onyejiaka, M.D.'s license?
NPPES lists Illinois license number 036.135051, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ndidi Onyejiaka, M.D. prescribe under Medicare Part D?
In 2024, Ndidi Onyejiaka, M.D. had 208 Medicare Part D claims for 16 beneficiaries; the average among sports medicine (psychiatry & neurology) physician prescribers was 460. 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.