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Infectious Disease

Olufemi O. Aboyeji, MD

Works at hospitals in Harvey, IL · Gary, IN · Chicago, IL … · Illinois, Indiana

Summary

Dr. Olufemi O. Aboyeji, MD is an infectious disease doctor at 1500 S Lake Park Ave, Hobart, IN 46342. Phone: (219) 942-0551. Accepts Medicare assignment. In 2024, Olufemi O. Aboyeji had 2,560 Original Medicare patients and 7,338 services. NPI 1790983690. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Infectious disease doctor (Medicare lists Infectious Disease)
  • Address: 1500 S Lake Park Ave, Hobart, IN 46342 · Directions (2 more locations)
  • Phone: (219) 942‑0551
  • Medicare: Accepts Medicare assignment
  • Hospitals: Ingalls Memorial Hospital, Methodist Hospitals Inc, South Shore Hospital and 2 more
  • Group practice: Insight Chicago Inc (+1 more)
  • Medical school: New York Medical College · graduated 2004 (22 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Olufemi O. Aboyeji, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Olufemi O. Aboyeji accept Medicare assignment?
Yes. Medicare's clinician data says Olufemi O. Aboyeji accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Olufemi O. Aboyeji see?
In 2024, CMS data shows 2,560 Original Medicare patients and 7,338 services for Olufemi O. Aboyeji. This counts Original Medicare only and measures volume, not quality.
What is Olufemi O. Aboyeji's NPI number?
1790983690. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Olufemi O. Aboyeji, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients2,560
Services billed to Medicare7,338
Different services or procedures17
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)2,441 services
  2. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes (99307)1,401 services
  3. Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)1,161 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)1,021 services
  5. Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)431 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis60%
  • Depression58%
  • Diabetes56%
  • Chronic kidney disease53%

Hospitals where Olufemi O. Aboyeji works

Medicare's Facility Affiliation Data lists Olufemi O. Aboyeji at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Ingalls Memorial HospitalHarvey, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140191
  • Methodist Hospitals IncGary, IN · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 150002
  • South Shore HospitalChicago, IL · Acute Care Hospital · Emergency services: listed by Medicare · CCN 140181
  • St Bernard HospitalChicago, IL · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 140103
  • St Mary Medical Center IncHobart, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150034

Practice locations

Addresses where Olufemi O. Aboyeji is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Olufemi O. Aboyeji as a member of these groups (CMS data updated October 2, 2026).

  • Insight Chicago Inc141 clinicians in the group
  • Chicagoland Infectious Disease PC36 clinicians in the group

Specialties

Find other Infectious Disease doctors in Indiana →

Other infectious disease doctors in Indiana

Clinicians with the same Medicare primary specialty in Indiana — not a recommendation.

All infectious disease doctors in Indiana →

Other clinicians in Insight Chicago Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolNew York Medical College
Graduation year2004 (22 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1790983690
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians