Robert Michael Eisner, D.O.
NPI 1841372299ActiveIndividual· Internal Medicine, Hematology & Oncology· Evanston, IL
Internal Medicine, Hematology & Oncology (D.O.) in Evanston, Illinois, trained at Arizona College of Osteopathic Medicine Mid Western University (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $5,876,422 for 1,396 claims, against $191,097 paid for services in 2024. E.R. Squibb & Sons, L.L.C. reported $2,130 in payments in 2025, mostly consulting fees.
Overview
| NPI | 1841372299 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Oct 19, 2006 |
| Last updated in NPPES | Jul 29, 2024 |
| Certified by provider | Jul 29, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 036-107525 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 468 |
|---|---|
| Services billed | 2,154 across 17 procedure codes |
| Paid by Medicare | $191,097 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,396 · 1,806 30-day fills |
|---|---|
| Patients | 205 |
| Total drug cost | $5,876,422 |
| Generic share | 67% of claims |
Education and affiliations
| Medical school | Arizona College of Osteopathic Medicine Mid Western University |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Endeavor Health Medical GroupEvanston, IL · 3,350 clinicians
Hospital affiliations
- Northshore University Healthsystem - Evanston HospitalEvanston, IL
- Northwest Community Hospital 1Arlington Heights, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Swedish HospitalChicago, IL
Industry payments (Open Payments)
- 2025$2,130 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $2,130 | 1 |
What the 2025 payments were for
- Consulting Fee$2,130 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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