Ari Joseph Rosenberg, MD
NPI 1699017715ActiveIndividual· Internal Medicine, Hematology & Oncology· Chicago, IL
Internal Medicine, Hematology & Oncology (MD) with University of Chicago and 1 other group, practicing in Chicago, Illinois. Their prescriptions cost Medicare Part D more than their services did: $1,653,821 for 367 claims, against $58,147 paid for services in 2024. Janssen Global Services, LLC was the largest of 3 companies reporting payments in 2025, $8,454 in all, mostly consulting fees. Lists The University of Chicago Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1699017715 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 27, 2013 |
| Last updated in NPPES | Oct 30, 2024 |
| Certified by provider | Oct 30, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 036138973 | 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 - Hematology/Oncology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 207 |
|---|---|
| Services billed | 687 across 14 procedure codes |
| Paid by Medicare | $58,147 |
Part D prescriptions in 2024
| Prescriptions (claims) | 367 · 536 30-day fills |
|---|---|
| Patients | 90 |
| Total drug cost | $1,653,821 |
| Generic share | 64% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical groups
- University of ChicagoChicago, IL · 1,712 clinicians
- The University of Chicago Medical CenterChicago, IL · 915 clinicians
Hospital affiliations
- The University of Chicago Medical CenterChicago, IL
- Uchicago Medicine Northwest IndianaCrown Point, IN
Industry payments (Open Payments)
- 2025$8,454 · 6 payments from 3 companies
- 2024$17,764 · 17 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Global Services, LLC | $6,206 | 4 |
| Janssen Scientific Affairs, LLC | $2,115 | 1 |
| Gilead Sciences, Inc. | $132.53 | 1 |
What the 2025 payments were for
- Consulting Fee$7,915 · 3 payments
- Travel and Lodging$383.74 · 1 payment
- Food and Beverage$154.80 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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