Olusoji Anthony Peter, M.D.
Internal Medicine Physician · Chicago, IL
Olusoji Anthony Peter, M.D. is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1225018203, issued on Jan 18, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Olusoji Anthony Peter
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 01056426A IN
Self-reported in NPPES; status is on the state search - Practice location
- 11000 S Halsted St, Chicago, IL 60628
- Phone
- (219) 750-9389
- Enumerated
- Jan 18, 2006
- Record last updated
- May 19, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 200396310 IN
- Medicare enrollment
- Enrolled (PECOS I20080726000013); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 11000 S Halsted St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ismail Oyebode, APNFamily Nurse Practitioner1669079018
- Leshaun WilliamsFamily Nurse Practitioner1043679681
- Sheng Wu, M.D.Family Medicine Physician1063595718
Verify Olusoji Anthony Peter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% more Medicare Part D claims than the average internal medicine physician in 2024
5,160 Medicare Part D claims for 165 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Atorvastatin Calcium505 claims
- Amlodipine Besylate321 claims
- Hydrochlorothiazide211 claims
- Lisinopril164 claims
- Tamsulosin Hcl162 claims
- Potassium Chloride143 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.
The MIPS final score for 2023 (Medicare payment program): 9.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 4 group practices
- Forever Care Home Visiting Physicians IncDes Plaines, IL
- Lakeshore Home Visiting PhysiciansChicago, IL
- New Southtown Medical Group S CDarien, IL
- Vital Signs Wellness LLCSchaumburg, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Olusoji Anthony Peter among 7,238 internal medicine physician records in Illinois
Olusoji Anthony Peter, M.D. 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1988 · median 2003 among the 3,580 with a school on file
- Record last updated2020 · 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 →
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Common questions
What is Olusoji Anthony Peter, M.D.'s NPI number?
Olusoji Anthony Peter, M.D.'s National Provider Identifier (NPI) is 1225018203, issued on Jan 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Olusoji Anthony Peter, M.D. located?
The NPPES record lists a practice address at 11000 S Halsted St, Chicago, IL, 60628. Phone: (219) 750-9389. Providers update this record themselves, so call before visiting.
How can I verify Olusoji Anthony Peter, M.D.'s license?
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 Olusoji Anthony Peter, M.D. prescribe under Medicare Part D?
In 2024, Olusoji Anthony Peter, M.D. had 5,160 Medicare Part D claims for 165 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Olusoji Anthony Peter, M.D.'s MIPS final score?
The 2023 MIPS final score is 9.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.