Quick answers
- Does Steven O. Ikenberry accept Medicare assignment?
- Yes. Medicare's clinician data says Steven O. Ikenberry 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 Steven O. Ikenberry see?
- In 2024, CMS data shows 225 Original Medicare patients and 3,078 services for Steven O. Ikenberry. This counts Original Medicare only and measures volume, not quality.
- What is Steven O. Ikenberry's NPI number?
- 1336135540. 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 Steven O. Ikenberry, 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 patients | 225 |
|---|---|
| Services billed to Medicare | 3,078 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)227 services
- Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)104 services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)64 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)41 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)34 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 cholesterol72%
- High blood pressure68%
- Arthritis48%
- Diabetes32%
- Anxiety26%
- Chronic kidney disease24%
Practice locations
Addresses where Steven O. Ikenberry is enrolled with Medicare (CMS data updated October 2, 2026).
- 401 Roxbury RdRockford, IL 61107 (815) 397‑7340
Group practices
Medicare enrollment lists Steven O. Ikenberry as a member of this group (CMS data updated October 2, 2026).
- Rockford Gastroenterology Associates Ltd27 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Rockford
Clinicians with the same Medicare primary specialty in Rockford, IL — not a recommendation.
Other clinicians in Rockford Gastroenterology Associates Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loyola University Of Chicago, Stritch School Of Medicine |
| Graduation year | 1989 (37 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336135540 |
| Corrections | Report 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians