Steven O. Ikenberry, M.D.
Gastroenterology Physician · Rockford, IL
Steven O. Ikenberry, M.D. is a gastroenterology physician with a practice address in Rockford, Illinois, and NPI 1336135540, issued on Sep 22, 2005. Check the license (Illinois 36093860, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Steven O. Ikenberry
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 36093860 IL
01039865A IN
Self-reported in NPPES; status is on the state search - Practice location
- 401 Roxbury RD, Rockford, IL 61107
- Phone
- (815) 397-7340
- Enumerated
- Sep 22, 2005
- Record last updated
- Dec 22, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (815) 397-7388
- Medicaid ID
- 036093860 IL
- Medicare enrollment
- Enrolled (PECOS I20110225000853); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 401 Roxbury RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nabil Baddour, D.O., MPHGastroenterology Physician1184018178
- Hasan Bader, M.D.Gastroenterology Physician1275989998
- Robert Barclay, M.D.Gastroenterology Physician1073509337
- William Baskin, M.D.Gastroenterology Physician1063408342
- Lindsay BennettNurse Practitioner1578439865
- Jessica Dean, APNFamily Nurse Practitioner1609622695
Verify Steven O. Ikenberry in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 36093860Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average gastroenterology physician in 2024
785 Medicare Part D claims for 246 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Omeprazole235 claims
- Pantoprazole Sodium57 claims
- Cholestyramine49 claims
- Lansoprazole45 claims
- Mesalamine41 claims
- Linzess36 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 practice group's MIPS final score for 2023 (Medicare payment program): 60.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $16.70
1 payment: food and beverage; the largest payer was Pfizer Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Rockford Gastroenterology Associates LtdRockford, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steven O. Ikenberry among 887 gastroenterology physician records in Illinois
Steven O. Ikenberry, M.D. is one of 887 gastroenterology physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1989 · median 2003 among the 643 with a school on file
- Record last updated2010 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Illinois
There are 887 gastroenterology physician records in Illinois.
All 887 in Illinois → Every provider in Rockford → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Robert Barclay, M.D.Rockford, IL 611071073509337
- William Baskin, M.D.Rockford, IL 611071063408342
- John Deguide, M.D.Rockford, IL 611071538156948
- James Frakes, M.D., M.S.Rockford, IL 611071295722569
- Roger Greenlaw, M.D.Rockford, IL 611071699761890
- Michael Manley, M.D.Rockford, IL 611071346236569
- S Moore, M.D.Rockford, IL 611071841286754
- Kevin Peifer, M.D.Rockford, IL 611071699751446
Common questions
What is Steven O. Ikenberry, M.D.'s NPI number?
Steven O. Ikenberry, M.D.'s National Provider Identifier (NPI) is 1336135540, issued on Sep 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Steven O. Ikenberry, M.D. located?
The NPPES record lists a practice address at 401 Roxbury RD, Rockford, IL, 61107. Phone: (815) 397-7340. Providers update this record themselves, so call before visiting.
How can I verify Steven O. Ikenberry, M.D.'s license?
NPPES lists Illinois license number 36093860, as entered by the provider. 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 Steven O. Ikenberry, M.D. prescribe under Medicare Part D?
In 2024, Steven O. Ikenberry, M.D. had 785 Medicare Part D claims for 246 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Steven O. Ikenberry, M.D.'s MIPS final score?
The 2023 MIPS final score is 60.3 of 100, reported for the practice group. 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.