Mazen Zaitoon, M.D.
NPI 1013280965ActiveIndividual· Internal Medicine· Valparaiso, IN
Internal Medicine (M.D.) with Platinum Hospitalists LLP, practicing in Valparaiso, Indiana. In 2024 Medicare paid $264,606 for 1,177 patients, and Part D covered 590 of their prescriptions, 89% of them generic. Intuitive Surgical, Inc. reported $122.70 in payments in 2025, mostly food and beverage. Lists Saint Rose Dominican Hospitals - Siena Campus as a hospital affiliation.
Overview
| NPI | 1013280965 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 22, 2012 |
| Last updated in NPPES | Oct 5, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 01075647A | IN |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Internal Medicine (NV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,177 |
|---|---|
| Services billed | 2,921 across 10 procedure codes |
| Paid by Medicare | $264,606 |
Part D prescriptions in 2024
| Prescriptions (claims) | 590 · 633 30-day fills |
|---|---|
| Patients | 292 |
| Total drug cost | $31,207 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Platinum Hospitalists LLPLas Vegas, NV · 202 clinicians
Hospital affiliation
- Saint Rose Dominican Hospitals - Siena CampusHenderson, NV
Industry payments (Open Payments)
- 2025$122.70 · 1 payment from 1 company
- 2024$221.63 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $122.70 | 1 |
What the 2025 payments were for
- Food and Beverage$122.70 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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