Madalina Ionescu, MD
Endocrinology, Diabetes & Metabolism Physician · Berwyn, IL
Madalina Ionescu, MD is an endocrinology, diabetes & metabolism physician with a practice address in Berwyn, Illinois, and NPI 1306878558, issued on Jul 7, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Madalina Ionescu
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- Practice location
- 3249 Oak Park Ave, Berwyn, IL 60402
- Phone
- (708) 783-0192
- Enumerated
- Jul 7, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20060907000446); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 436 in Illinois → Look up another NPI →
Also registered at 3249 Oak Park Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Madalina Ionescu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
833 Medicare Part D claims for 250 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.
Most prescribed
- Levothyroxine Sodium56 claims
- Jardiance53 claims
- Glipizide48 claims
- Ozempic47 claims
- Atorvastatin Calcium42 claims
- Trulicity42 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 2 group practices
- Cook CountyChicago, IL
- Loyola Medical Group LLCRiverside, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Madalina Ionescu among 436 endocrinology, diabetes & metabolism physician records in Illinois
Madalina Ionescu, MD is one of 436 endocrinology, diabetes & metabolism 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 62% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1991 · median 2006 among the 295 with a school on file
- Record last updated2007 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Illinois
There are 436 endocrinology, diabetes & metabolism physician records in Illinois.
All 436 in Illinois → Every provider in Berwyn → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Veena Nadkarni, M.D.Crest Hill, IL 604031124090931
- Nuzhat Chalisa, MDChannahon, IL 604101184686909
- Akbar Rahmani, M.D.Flossmoor, IL 604221952301293
- Ilene Weintraub Yohay, M.D.Flossmoor, IL 604221669486262
- Ayesha Akbar, M.D.Frankfort, IL 604231407809064
- Jyothsna Palla, M.D.Hazel Crest, IL 604291437397023
- Lucy Dey, M.D.Joliet, IL 604351710191705
- Wassim El-Harake, M.D.Joliet, IL 604351346236098
Common questions
What is Madalina Ionescu, MD's NPI number?
Madalina Ionescu, MD's National Provider Identifier (NPI) is 1306878558, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Madalina Ionescu, MD located?
The NPPES record lists a practice address at 3249 Oak Park Ave, Berwyn, IL, 60402. Phone: (708) 783-0192. Providers update this record themselves, so call before visiting.
How can I verify Madalina Ionescu, MD's license?
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 Madalina Ionescu, MD prescribe under Medicare Part D?
In 2024, Madalina Ionescu, MD had 833 Medicare Part D claims for 250 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.