Otuonye E. Onyewuchi, MD, MPH
Internal Medicine Physician · Chicago, IL
Otuonye E. Onyewuchi, MD, MPH is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1538354295, issued on Sep 6, 2007. Check the license (Illinois 036-118945, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Otuonye E. Onyewuchi
- Credential
- MD, MPH
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 036-118945 IL
036118945 IL
36118945 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1750 E 87TH St Ste 109, Chicago, IL 60617
- Phone
- (773) 933-9300
- Enumerated
- Sep 6, 2007
- Record last updated
- Jan 15, 2026
- Fax
- (773) 933-9302
- Medicaid ID
- 036118945 IL
- Medicare enrollment
- Enrolled (PECOS I20090102000410); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 1750 E 87TH St Ste 109
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Saarah Alkhairy, MD, MBAPsychiatry Physician1104440361
- Cecilia Isioma, NPPsychiatric/Mental Health Nurse Practitioner1568217354
Verify Otuonye E. Onyewuchi 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 036-118945Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,974 Medicare Part D claims for 100 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 205 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen117 claims
- Atorvastatin Calcium87 claims
- Gabapentin81 claims
- Furosemide55 claims
- Amlodipine Besylate53 claims
- Hydralazine Hcl52 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: $574.27
11 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Cook CountyChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Otuonye E. Onyewuchi among 7,238 internal medicine physician records in Illinois
Otuonye E. Onyewuchi, MD, MPH is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 39% of them.
- NPI issued2007 · 39% of these records are older, 55% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1992 · median 2003 among the 3,580 with a school on file
- Record last updated2026 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2,867 internal medicine physician records list a practice address in Chicago
They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Chicago → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- David Buchanan, M.D.Chicago, IL 606171396772992
- Gomez Charleston, MDChicago, IL 606171124021795
- Jason Chen, MDChicago, IL 606171972543239
- Pamela Cruz, M.D.Chicago, IL 606171710912142
- Laverne Currie, M.D.Chicago, IL 606171629003058
Common questions
What is Otuonye E. Onyewuchi, MD, MPH's NPI number?
Otuonye E. Onyewuchi, MD, MPH's National Provider Identifier (NPI) is 1538354295, issued on Sep 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Otuonye E. Onyewuchi, MD, MPH located?
The NPPES record lists a practice address at 1750 E 87TH St Ste 109, Chicago, IL, 60617. Phone: (773) 933-9300. Providers update this record themselves, so call before visiting.
How can I verify Otuonye E. Onyewuchi, MD, MPH's license?
NPPES lists Illinois license number 036-118945, 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 Otuonye E. Onyewuchi, MD, MPH prescribe under Medicare Part D?
In 2024, Otuonye E. Onyewuchi, MD, MPH had 1,974 Medicare Part D claims for 100 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.