Ayaz Yunus Gen, DO
Internal Medicine Physician · Chicago, IL
Ayaz Yunus Gen, DO is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1508447061, issued on Apr 16, 2021. Check the license (Illinois 036.171094, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Ayaz Yunus Gen
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036.171094 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2751 W Winona St, Chicago, IL 60625
- Phone
- (773) 878-8200
- Enumerated
- Apr 16, 2021
- Record last updated
- Jun 30, 2026
- Medicare enrollment
- Enrolled (PECOS I20250715002417); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 2751 W Winona St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kala Evans, NPNurse Practitioner1891401501
- Barbette Johnson, RNRegistered Nurse1265211593
- Christopher Kim, PA-CSurgical Physician Assistant1437541125
- Joseph Kramkowski, MDPsychiatry Physician1255996419
- Steven Kvaal, PHDClinical Psychologist1609946300
- Joseph Marrara, M.D.Family Medicine Physician1972436715
Verify Ayaz Yunus Gen 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 036.171094Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
329 Medicare Part D claims for 110 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium23 claims
- Lisinopril21 claims
- Levothyroxine Sodium16 claims
- Januvia14 claims
- Amlodipine Besylate12 claims
- Myrbetriq11 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.
Bills Medicare through one group practice
- Loyola Medical Group LLCBerwyn, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ayaz Yunus Gen among 7,238 internal medicine physician records in Illinois
Ayaz Yunus Gen, DO 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 2021, is newer than 74% of them.
- NPI issued2021 · 74% of these records are older, 22% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2015 · median 2003 among the 3,580 with a school on file
- Record last updated2026 · 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).
2,867 internal medicine physician records list a practice address in Chicago
They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Chicago → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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Common questions
What is Ayaz Yunus Gen, DO's NPI number?
Ayaz Yunus Gen, DO's National Provider Identifier (NPI) is 1508447061, issued on Apr 16, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Ayaz Yunus Gen, DO located?
The NPPES record lists a practice address at 2751 W Winona St, Chicago, IL, 60625. Phone: (773) 878-8200. Providers update this record themselves, so call before visiting.
How can I verify Ayaz Yunus Gen, DO's license?
NPPES lists Illinois license number 036.171094, 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 Ayaz Yunus Gen, DO prescribe under Medicare Part D?
In 2024, Ayaz Yunus Gen, DO had 329 Medicare Part D claims for 110 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.