Gregorio Gustavo Rosenstein, MD
NPI 1619936093ActiveIndividual· Internal Medicine· Chicago, IL
Internal Medicine (MD) in Chicago, Illinois, with an NPI issued in March 2006. Their prescriptions cost Medicare Part D more than their services did: $981,270 for 12,758 claims, against $87,392 paid for services in 2024. Lilly USA, LLC was the largest of 7 companies reporting payments in 2025, $435.42 in all, mostly food and beverage. Lists Amita Health Resurrection Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1619936093 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 22, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | — | 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 - Internal Medicine (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 211 |
|---|---|
| Services billed | 1,622 across 35 procedure codes |
| Paid by Medicare | $87,392 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12,758 · 24,035 30-day fills |
|---|---|
| Patients | 544 |
| Total drug cost | $981,270 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1983 |
|---|---|
| Medicare specialty | Internal Medicine |
Hospital affiliations
- Amita Health Resurrection Medical CenterChicago, IL
- Community First Medical CenterChicago, IL
- Loyola University Medical CenterMaywood, IL
- Macneal HospitalBerwyn, IL
Other facilities
- Reliable Home Care Provider, IncHome health agency · Lincolnshire, IL
- Elevate Care RegencyNursing home · Niles, IL
- Nexus at BerwynNursing home · Berwyn, IL
- Pavilion of Logan Square, theNursing home · Chicago, IL
Industry payments (Open Payments)
- 2025$435.42 · 25 payments from 7 companies
- 2024$451.71 · 21 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $159.08 | 10 |
| Astrazeneca Pharmaceuticals LP | $78.55 | 4 |
| Abbvie Inc. | $75.34 | 4 |
| Novo Nordisk Inc | $46.76 | 3 |
| Glaxosmithkline, LLC. | $28.40 | 2 |
What the 2025 payments were for
- Food and Beverage$435.42 · 25 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Chicago
- 1003270398
- 1003827411
- 1003918004
- 1013022565
- 1013968536
- 1023020989
- 1023053808
- 1023120094
- 1023306230
- 1023347135
- 1023396280
- 1023670833
All 3,299 internal medicine physicians in Chicago · All internal medicine physicians in Illinois