Mohamad Omar Zakaria Diab, MD
NPI 1861170177ActiveIndividual· Internal Medicine· Sierra Vista, AZ
Internal Medicine (MD) in Sierra Vista, Arizona, licensed in AZ, with an NPI issued in July 2023. Part D covered 71 prescriptions written in 2024, 87% of them generic. Boston Scientific Corporation was the largest of 2 companies reporting payments in 2025, $41.35 in all, mostly food and beverage. Lists Canyon Vista Medical Center as a hospital affiliation.
Overview
| NPI | 1861170177 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 6, 2023 |
| Last updated in NPPES | Jul 14, 2026 |
| Certified by provider | Jul 14, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 80333 | AZ |
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 - Hospitalist (AZ) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 71 · 73 30-day fills |
|---|---|
| Patients | 32 |
| Total drug cost | $4,574 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
Hospital affiliation
- Canyon Vista Medical CenterSierra Vista, AZ
Industry payments (Open Payments)
- 2025$41.35 · 2 payments from 2 companies
- 2024$328.16 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $26.05 | 1 |
| Janssen Biotech, Inc. | $15.30 | 1 |
What the 2025 payments were for
- Food and Beverage$41.35 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 58 internal medicine physicians in Sierra Vista · All internal medicine physicians in Arizona