Joshua Matthew Varghise Mammen, MD
NPI 1326259623ActiveIndividual· Surgery, Surgical Oncology· Omaha, NE
Surgery, Surgical Oncology (MD) in Omaha, Nebraska, trained at Boston University School of Medicine (class of 1999). Mostly services rather than prescriptions: Medicare paid $45,513 for 101 patients in 2024, with only 23 Part D claims. Baxter Healthcare reported $138.65 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1326259623 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 25, 2007 |
| Last updated in NPPES | Feb 11, 2025 |
| Certified by provider | Feb 11, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Surgical Oncology Primary | 2086X0206X | 33153 | NE |
| Surgery, Surgical Oncology | 2086X0206X | M6740 | TX |
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 - Surgical Oncology (NE) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 101 |
|---|---|
| Services billed | 376 across 56 procedure codes |
| Paid by Medicare | $45,513 |
Part D prescriptions in 2024
| Prescriptions (claims) | 23 · 23 30-day fills |
|---|---|
| Patients | 17 |
| Total drug cost | $179.38 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Boston University School of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Surgical Oncology |
Medical group
- Unmc PhysiciansBellevue, NE · 1,518 clinicians
Hospital affiliations
- Bellevue Medical CenterBellevue, NE
- Great Plains HealthNorth Platte, NE
- The Nebraska Medical CenterOmaha, NE
Industry payments (Open Payments)
- 2025$138.65 · 1 payment from 1 company
- 2024$182.10 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Baxter Healthcare | $138.65 | 1 |
What the 2025 payments were for
- Food and Beverage$138.65 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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