Doctor profile · Federal record

Dr. Olusoji Peter, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Chicago, IL

  • NPI 1225018203
  • MIPS 9.2 / 100 · 2023
  • 38 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
11000 S Halsted St
Chicago, IL 606283909
(219) 750-9389

Credentials & registration

NPPES · NUCC
NPI registered
January 2006 — 20 yrs on file
Profile last updated
May 19, 2020
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Indiana #01056426A
Medicaid
IN #200396310

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1225018203. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
4,949
Distinct HCPCS
10
Medicare allowed
$345,566
HCPCS Description Services Patients Avg allowed
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 1,808 292 $65
99439 Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 966 261 $49
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 474 189 $122
99491 Chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month 400 140 $85
G0179 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 399 211 $43
99497 Advance care planning, first 30 minutes 280 215 $86
G0180 Physician or allowed practitioner 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 and 257 193 $54
99457 Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 83 17 $50
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 68 68 $123
99344 Residence visit for new patient with moderate level of medical decision making, per day, if using time, at least 60 minutes 67 65 $137

In context: peer comparison

Among 487 peers in Chicago Internal Medicine Physician, average services per provider: 168. This provider delivers 29× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,355
Patients
367
Total drug cost
$37,200
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 486 70 $8,982
Amlodipine Besylate Generic 256 48 $2,249
Hydrochlorothiazide Generic 222 27 $1,406
Lisinopril Generic 204 31 $2,405
Metformin Hcl Generic 156 29 $1,654
Potassium Chloride Generic 151 19 $2,940
Tamsulosin Hcl Generic 131 20 $5,295
Levothyroxine Sodium Generic 124 14 $2,247
Gabapentin Generic 101 18 $1,827
Omeprazole Generic 101 15 $1,799

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Olusoji Peter's medical specialty?
Dr. Olusoji Peter practices Internal Medicine Physician in Chicago, IL.
Where does Dr. Olusoji Peter practice?
Dr. Olusoji Peter practices at 11000 S Halsted St, Chicago, IL 606283909. Office phone: 2197509389.
What is Dr. Olusoji Peter's NPI?
Dr. Olusoji Peter's National Provider Identifier (NPI) is 1225018203, issued by NPPES.
Does Dr. Olusoji Peter accept Medicare assignment?
Dr. Olusoji Peter does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Olusoji Peter commonly perform?
Top Medicare-reported procedures in 2023: Chronic care management services (HCPCS 99490); Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month (HCPCS 99439); Residence visit for established patient with moderate level of medical decision making (HCPCS 99349). Source: CMS Medicare Physician & Other Practitioners file.