Igor Naryzhny, D.O.
Gastroenterology Physician · Libertyville, IL
Igor Naryzhny, D.O. is a gastroenterology physician with a practice address in Libertyville, Illinois, and NPI 1679701239, issued on Jun 22, 2009. Check the license (Illinois 036-128612, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Igor Naryzhny
- Credential
- D.O.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 036-128612 IL
Self-reported in NPPES; status is on the state search - Practice location
- 825 S Milwaukee Ave, Libertyville, IL 60048
- Phone
- (847) 634-1766
- Enumerated
- Jun 22, 2009
- Record last updated
- Nov 21, 2024
- Medicare enrollment
- Enrolled (PECOS I20120829000105); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 2009
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 825 S Milwaukee Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christine Adique, APNPPrimary Care Nurse Practitioner1710306725
- Rahul Bhardwaj, M.D.Cardiovascular Disease Physician1285045179
- Jonathan Birnberg, MDInternal Medicine Physician1477731396
- Elaina Chen, MDPlastic Surgery Physician1932465150
- Justin Choi, MDInternal Medicine Physician1497382196
- Tae Ho Choi, MDFamily Medicine Physician1124434477
Verify Igor Naryzhny 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 036-128612Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% more Medicare Part D claims than the average gastroenterology physician in 2024
1,548 Medicare Part D claims for 424 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims. 14 claims were for opioids.
Most prescribed
- Pantoprazole Sodium457 claims
- Sod Sulf-Potass Sulf-Mag Sulf152 claims
- Linzess137 claims
- Famotidine75 claims
- Sucralfate65 claims
- Ursodiol50 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.
Industry payments in 2024: $1,912.90
80 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, 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
- Advocate Health And Hospitals CorporationLibertyville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Igor Naryzhny among 887 gastroenterology physician records in Illinois
Igor Naryzhny, D.O. 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 2009, is newer than 61% of them.
- NPI issued2009 · 61% of these records are older, 37% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2009 · median 2003 among the 643 with a school on file
- Record last updated2024 · 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 Libertyville → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Philip Adjei, M.D.Libertyville, IL 600481720080054
- Arkan Alrashid, M.D.Libertyville, IL 600481851348916
- Mohammad Bawani, MDLibertyville, IL 600481407858152
- Robert Hadesman, M.D.Libertyville, IL 600481245234574
- Saad Hashmi, MDLibertyville, IL 600481326579434
- Ahmad Hassan, MDLibertyville, IL 600481033572904
- Timothy Laurie, D.O.Libertyville, IL 600481790941078
- Sean Lee, M.D.Libertyville, IL 600481194765248
Common questions
What is Igor Naryzhny, D.O.'s NPI number?
Igor Naryzhny, D.O.'s National Provider Identifier (NPI) is 1679701239, issued on Jun 22, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Igor Naryzhny, D.O. located?
The NPPES record lists a practice address at 825 S Milwaukee Ave, Libertyville, IL, 60048. Phone: (847) 634-1766. Providers update this record themselves, so call before visiting.
How can I verify Igor Naryzhny, D.O.'s license?
NPPES lists Illinois license number 036-128612, 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 Igor Naryzhny, D.O. prescribe under Medicare Part D?
In 2024, Igor Naryzhny, D.O. had 1,548 Medicare Part D claims for 424 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
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.