Stuart P. Leitner, MD
NPI 1558341735ActiveIndividual· Internal Medicine, Hematology & Oncology· Livingston, NJ
Internal Medicine, Hematology & Oncology (MD) in Livingston, New Jersey, trained at Icahn School of Medicine at Mount Sinai (class of 1973). Their prescriptions cost Medicare Part D more than their services did: $3,656,416 for 1,418 claims, against $96,391 paid for services in 2024. Ipsen Biopharmaceuticals, Inc reported $17.27 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1558341735 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 23, 2006 |
| Last updated in NPPES | May 2, 2024 |
| Certified by provider | May 2, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 25MA04624400 | NJ |
| Internal Medicine | 207R00000X | 25MA04624400 | NJ |
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 (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 353 |
|---|---|
| Services billed | 1,245 across 13 procedure codes |
| Paid by Medicare | $96,391 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,418 · 2,163 30-day fills |
|---|---|
| Patients | 208 |
| Total drug cost | $3,656,416 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | Icahn School of Medicine at Mount Sinai |
|---|---|
| Graduation year | 1973 |
| Medicare specialty | Hematology/Oncology |
Medical group
- Barnabas Health Medical Group PCNewark, NJ · 1,070 clinicians
Hospital affiliations
- Cooperman Barnabas Medical CenterLivingston, NJ
- Morristown Medical CenterMorristown, NJ
Industry payments (Open Payments)
- 2025$17.27 · 1 payment from 1 company
- 2024$39.58 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ipsen Biopharmaceuticals, Inc | $17.27 | 1 |
What the 2025 payments were for
- Food and Beverage$17.27 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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