Olusoji Peter, M.D.
NPI 1225018203 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Olusoji Peter, M.D. is a Internal Medicine Physician provider in Chicago, IL (NPI 1225018203).
Provider details
- NPI number
- 1225018203
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 01056426A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
6,643 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 1,553 | $117 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 1,241 | $65 |
| Advance Care Planning, First 30 Minutes99497 | 1,021 | $56 |
| Chronic Care Management Services for Two Or More Chronic Conditions, First 30 Minutes Provided Personally By Health Care Professional, Per Calendar Month99491 | 939 | $83 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 545 | $49 |
| Physician Or Allowed Practitioner Re-Certification for Medicare-Covered Home Health Services Under a Home Health Plan of Care (patient Not Present), Including Contacts With Home Health Agency and Review of Reports of Patient Status Required By Physicians a |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 95 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 505 | 56 |
| Amlodipine Besylate | 321 | 37 |
| Hydrochlorothiazide | 211 | 25 |
| Lisinopril | 164 | 20 |
| Tamsulosin Hcl | 162 | 18 |
| Potassium Chloride | 143 | 13 |
| Metformin Hcl | 142 | 17 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-18
- Last updated
- 2020-05-19
- Certified
- 2020-05-19
Frequently asked questions
- What is Olusoji Peter's NPI number?
- Olusoji Peter's National Provider Identifier (NPI) is 1225018203, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Olusoji Peter's specialty?
- Olusoji Peter is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Olusoji Peter located?
- Olusoji Peter's practice location on file with NPPES is 11000 S Halsted St, Chicago, IL 60628-3909.
- What is Olusoji Peter's phone number?
- The practice phone number listed in the NPPES registry for Olusoji Peter is (219) 750-9389.
- Does Olusoji Peter accept Medicare?
- Olusoji Peter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Olusoji Peter's NPI active?
- Yes — Olusoji Peter's NPI (1225018203) is active in the NPPES registry as of the last update on 2020-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.