Demetra Vlagos Rupp, M.D.
Endocrinology, Diabetes & Metabolism Physician · Geneva, IL
Demetra Vlagos Rupp, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Geneva, Illinois, and NPI 1518131903, issued on Apr 16, 2008. Check the license (Illinois 036115634, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Demetra Vlagos Rupp
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 036115634 IL
Self-reported in NPPES; status is on the state search - Practice location
- 302 Randall RD, Geneva, IL 60134
- Phone
- (630) 208-6775
- Enumerated
- Apr 16, 2008
- Record last updated
- Nov 29, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (630) 208-7937
- Medicaid ID
- 036115634 IL
- Medicare enrollment
- Enrolled (PECOS I20081231000399); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 436 in Illinois → Look up another NPI →
Also registered at 302 Randall RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Heather Anaya, DOMaternal & Fetal Medicine Physician1285890855
- Arvin Bhatia, MDGastroenterology Physician1841446788
- Steven Bielski, M.D.Endocrinology, Diabetes & Metabolism Physician1144227570
- Dean Bieniak, PA-CPhysician Assistant1386724581
- Andrew Bregman, MDGastroenterology Physician1982680013
- Kristina Bustamante, PHD, MA, BS, CCC-SLPSpeech-Language Pathologist1003206798
Verify Demetra Vlagos Rupp 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 036115634Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
3,296 Medicare Part D claims for 399 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 60% of claims.
Most prescribed
- Levothyroxine Sodium420 claims
- Metformin Hcl251 claims
- Ozempic227 claims
- Jardiance195 claims
- Synthroid195 claims
- Lantus Solostar181 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 MIPS final score for 2023 (Medicare payment program): 94.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Central Dupage Physician GroupGeneva, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Demetra Vlagos Rupp among 436 endocrinology, diabetes & metabolism physician records in Illinois
Demetra Vlagos Rupp, M.D. 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 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 43% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2003 · median 2006 among the 295 with a school on file
- Record last updated2012 · 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 Geneva → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Steven Bielski, M.D.Geneva, IL 601341144227570
- Elisa Hofmann, M.D.Geneva, IL 601341043217490
- Tiffany Karas, MDGeneva, IL 601341013993336
- Zeenat Parveen, M.D.Geneva, IL 601341912099060
- Karthik Subbu, M.D.Geneva, IL 601341760974950
- Hafsa Amjed, M.DGlen Ellyn, IL 601371104272798
- Winnie Nhan, DOGlen Ellyn, IL 601371245681709
- Nasrin Azad, MDHines, IL 601411831270909
Common questions
What is Demetra Vlagos Rupp, M.D.'s NPI number?
Demetra Vlagos Rupp, M.D.'s National Provider Identifier (NPI) is 1518131903, issued on Apr 16, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Demetra Vlagos Rupp, M.D. located?
The NPPES record lists a practice address at 302 Randall RD, Geneva, IL, 60134. Phone: (630) 208-6775. Providers update this record themselves, so call before visiting.
How can I verify Demetra Vlagos Rupp, M.D.'s license?
NPPES lists Illinois license number 036115634, 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 Demetra Vlagos Rupp, M.D. prescribe under Medicare Part D?
In 2024, Demetra Vlagos Rupp, M.D. had 3,296 Medicare Part D claims for 399 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Demetra Vlagos Rupp, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.1 of 100. 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.