NPPES file of Aug 9, 2026

Nneka Nnene Osuji, MD

Family Medicine Physician · Oak Lawn, IL

Nneka Nnene Osuji, MD is a family medicine physician with a practice address in Oak Lawn, Illinois, and NPI 1255906103, issued on May 24, 2021. Check the license (Illinois 036-171738, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255906103
Name
Nneka Nnene Osuji
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
036-171738 IL
125.078329 IL
Self-reported in NPPES; status is on the state search
Practice location
4061 W 95TH St Ste 3, Oak Lawn, IL 60453
Phone
(708) 423-2880
Enumerated
May 24, 2021
Record last updated
May 23, 2025
Fax
(708) 423-2933
Medicare enrollment
Enrolled (PECOS I20250527001266); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 4061 W 95TH St Ste 3

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lisa Dunning, M.D.Internal Medicine Physician1225269053
  2. Matthew Hanlon, D.O.Family Medicine Physician1104937622
  3. Shana Hornbeck, PA-CPhysician Assistant1326562836
  4. Patrycja Strama, PAPhysician Assistant1508609025
  5. Sarah Ward, PA-CPhysician Assistant1285463257

Verify Nneka Nnene Osuji in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036-171738
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

89% fewer Medicare Part D claims than the average family medicine physician in 2024

383 Medicare Part D claims for 55 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Nneka Osuji383
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium39 claims
  2. Amlodipine Besylate26 claims
  3. Albuterol Sulfate Hfa25 claims
  4. Hydrochlorothiazide22 claims
  5. Nifedipine Er18 claims
  6. Fluticasone Propionate17 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.

Bills Medicare through one group practice

  1. Dupage Medical Group LtdSchaumburg, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nneka Nnene Osuji among 6,215 family medicine physician records in Illinois

Nneka Nnene Osuji, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 78% 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 84% of them.

  • NPI issued2021 · 84% of these records are older, 13% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2008 · median 2006 among the 3,714 with a school on file
  • Record last updated2025 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

71 family medicine physician records list a practice address in Oak Lawn

They are 71 of the 2,993 NPPES records with a practice address in Oak Lawn, and 6,215 family medicine physician records in Illinois.

The 8 family medicine physician records with the nearest ZIP codes

  1. Sangili Chandran, M.D.Oak Lawn, IL 604531790705663
  2. Jarom Daszko, M.D.Oak Lawn, IL 604531487674693
  3. Emelie Ilarde, MDOak Lawn, IL 604531639194137
  4. Anastacia Largosa, M.D.Oak Lawn, IL 604531750329835
  5. Cynthia Ohata, M.D.Oak Lawn, IL 604531912949025
  6. Michael Olivieri, M.D.Oak Lawn, IL 604531124042189
  7. Paul Omastiak, MDOak Lawn, IL 604531821020124
  8. Warren Robinson, MDOak Lawn, IL 604531114037967

Common questions

What is Nneka Nnene Osuji, MD's NPI number?

Nneka Nnene Osuji, MD's National Provider Identifier (NPI) is 1255906103, issued on May 24, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Nneka Nnene Osuji, MD located?

The NPPES record lists a practice address at 4061 W 95TH St Ste 3, Oak Lawn, IL, 60453. Phone: (708) 423-2880. Providers update this record themselves, so call before visiting.

How can I verify Nneka Nnene Osuji, MD's license?

NPPES lists Illinois license number 036-171738, 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 Nneka Nnene Osuji, MD prescribe under Medicare Part D?

In 2024, Nneka Nnene Osuji, MD had 383 Medicare Part D claims for 55 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.