Chimuanya Okoli, MD
Sleep Medicine (Internal Medicine) Physician · Chicago, IL
Chimuanya Okoli, MD is a sleep medicine (internal medicine) physician with a practice address in Chicago, Illinois, and NPI 1003444779, issued on Mar 30, 2020. Check the license (Illinois 125.076689, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Chimuanya Okoli
- Credential
- MD
- Primary taxonomy
- Sleep Medicine (Internal Medicine) Physician 207RS0012X
- License numbers
- 125.076689 IL
94081 SC
Self-reported in NPPES; status is on the state search - Practice location
- 836 W Wellington Ave, Chicago, IL 60657
- Phone
- (773) 296-5424
- Enumerated
- Mar 30, 2020
- Record last updated
- Aug 12, 2025
- Medicare enrollment
- Enrolled (PECOS I20250710000212); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest sleep medicine (internal medicine) physician records → All 43 in Illinois → Look up another NPI →
Also registered at 836 W Wellington Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Misha Abbasi, MDHospitalist Physician1770111635
- Karim Abou El JoudHospitalist Physician1770043895
- Nasser Abualhassan, M.D.Student in an Organized Health Care Education/Training Program1700173127
- Swapnil Adhav, M.D.Surgery Physician1285942292
- Ahsan AdilAnesthesiology Physician1174463772
Verify Chimuanya Okoli 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 125.076689Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average sleep medicine (internal medicine) physician in 2024
110 Medicare Part D claims for 38 beneficiaries, against an average of 585 among the 852 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of 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: $1,230.59
4 payments; by number, the most common kind was food and beverage; the largest payer was Inspire Medical Systems, Inc. The 664 providers of this specialty with any payment received $3,724.37 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.
3 hospitals and group practices
- Self Regional HealthcareGreenwood, SC · Acute Care Hospitals4 of 5 stars
- Self Medical GroupGreenwood, SC
- The Metrohealth SystemCleveland, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Chimuanya Okoli among 43 sleep medicine (internal medicine) physician records in Illinois
Chimuanya Okoli, MD is one of 43 sleep medicine (internal medicine) physician records with a practice address in Illinois. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 84% of them.
- NPI issued2020 · 84% of these records are older, 12% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2014 · median 2012 among the 30 with a school on file
- Record last updated2025 · 35% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Sleep Medicine (Internal Medicine) Physician providers in Illinois
There are 43 sleep medicine (internal medicine) physician records in Illinois.
All 43 in Illinois → Every provider in Chicago → Sleep Medicine (Internal Medicine) Physician nationwide →
The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes
- Jehad Abdalla, MDChicago, IL 606371053898684
- Farbod Ghods, M.DChicago, IL 606371588970933
- Amy Guralnick, M.D.Chicago, IL 606371720202740
- Naveed Mallick, MDChicago, IL 606371033275615
- Matthew Nemoy, DOChicago, IL 606371134786502
- Sushmita Pamidi, M.D.Chicago, IL 606371629206438
- Gorav Sharma, MDChicago, IL 606371306293725
- Joshua Taylor, MDChicago, IL 606371588492748
Common questions
What is Chimuanya Okoli, MD's NPI number?
Chimuanya Okoli, MD's National Provider Identifier (NPI) is 1003444779, issued on Mar 30, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Chimuanya Okoli, MD located?
The NPPES record lists a practice address at 836 W Wellington Ave, Chicago, IL, 60657. Phone: (773) 296-5424. Providers update this record themselves, so call before visiting.
How can I verify Chimuanya Okoli, MD's license?
NPPES lists Illinois license number 125.076689, 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 Chimuanya Okoli, MD prescribe under Medicare Part D?
In 2024, Chimuanya Okoli, MD had 110 Medicare Part D claims for 38 beneficiaries; the average among sleep medicine (internal medicine) physician prescribers was 585. 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.