Demetra Vlagos Rupp, M.D.
NPI 1518131903ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Geneva, IL
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) in Geneva, Illinois, trained at Loyola University of Chicago, Stritch School of Medicine (class of 2003). Their prescriptions cost Medicare Part D more than their services did: $1,715,573 for 3,296 claims, against $123,563 paid for services in 2024.
Overview
| NPI | 1518131903 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 16, 2008 |
| Last updated in NPPES | Nov 29, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 036115634 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 310 |
|---|---|
| Services billed | 4,208 across 27 procedure codes |
| Paid by Medicare | $123,563 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,296 · 7,922 30-day fills |
|---|---|
| Patients | 399 |
| Total drug cost | $1,715,573 |
| Generic share | 32% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Central Dupage Physician GroupGeneva, IL · 1,080 clinicians
Hospital affiliations
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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