Irena Chizhik, M.D.
Internal Medicine Physician · Skokie, IL
Irena Chizhik, M.D. is an internal medicine physician with a practice address in Skokie, Illinois, and NPI 1275501579, issued on Mar 10, 2006. Check the license (Illinois 036096654, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Irena Chizhik
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036096654 IL
Self-reported in NPPES; status is on the state search - Practice location
- 9555 Gross Point RD, Skokie, IL 60076
- Phone
- (847) 679-3411
- Enumerated
- Mar 10, 2006
- Record last updated
- Jul 26, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (847) 675-7450
- Medicaid ID
- 036096654 IL
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 9555 Gross Point RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sharon Berliant, M.D.Internal Medicine Physician1982672549
- Betty Goldstein, M.D.Internal Medicine Physician1699743070
- Jeffrey Rager, DPMPodiatrist1538137831
- Steven Sholl, M.D.Internal Medicine Physician1982672275
- Jeffrey Weinberg, M.D.Internal Medicine Physician1447228762
Verify Irena Chizhik 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 036096654Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
93 Medicare Part D claims for 27 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of 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.
Irena Chizhik among 7,238 internal medicine physician records in Illinois
Irena Chizhik, M.D. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2011 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
65 internal medicine physician records list a practice address in Skokie
They are 65 of the 2,210 NPPES records with a practice address in Skokie, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Skokie → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Naheed Ali, MDSkokie, IL 600761811971559
- Sharon Berliant, M.D.Skokie, IL 600761982672549
- Barbara Brotine, MDSkokie, IL 600761518945146
- Susan Burrowes, M.D.Skokie, IL 600761851389266
- Chris Chon, MDSkokie, IL 600761578550752
- Betty Goldstein, M.D.Skokie, IL 600761699743070
- Dong Kim, MDSkokie, IL 600761255307104
- Laura Lafave, MDSkokie, IL 600761316921695
Common questions
What is Irena Chizhik, M.D.'s NPI number?
Irena Chizhik, M.D.'s National Provider Identifier (NPI) is 1275501579, issued on Mar 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Irena Chizhik, M.D. located?
The NPPES record lists a practice address at 9555 Gross Point RD, Skokie, IL, 60076. Phone: (847) 679-3411. Providers update this record themselves, so call before visiting.
How can I verify Irena Chizhik, M.D.'s license?
NPPES lists Illinois license number 036096654, 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 Irena Chizhik, M.D. prescribe under Medicare Part D?
In 2024, Irena Chizhik, M.D. had 93 Medicare Part D claims for 27 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.