Samir Ezzeldin Witta, MD PHD
NPI 1013991678ActiveIndividual· Internal Medicine, Hematology & Oncology· Englewood, CO
Internal Medicine, Hematology & Oncology (MD PHD) with Intermountain Medical Group Denver LLC and 1 other group, practicing in Englewood, Colorado. Their prescriptions cost Medicare Part D more than their services did: $454,492 for 337 claims, against $45,929 paid for services in 2024. Genentech USA, Inc. was the largest of 5 companies reporting payments in 2025, $217.59 in all, mostly food and beverage. Lists Good Samaritan Medical Center LLC and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1013991678 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD PHD |
| Sole proprietor | Yes |
| NPI issued | Dec 6, 2005 |
| Last updated in NPPES | Jan 15, 2024 |
| Certified by provider | Jan 15, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | DR.0039762 | CO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (CO); Practitioner - Hematology/Oncology (NE); Practitioner - Medical Oncology (NM) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 150 |
|---|---|
| Services billed | 1,436 across 32 procedure codes |
| Paid by Medicare | $45,929 |
Part D prescriptions in 2024
| Prescriptions (claims) | 337 · 502 30-day fills |
|---|---|
| Patients | 95 |
| Total drug cost | $454,492 |
| Generic share | 74% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
Medical groups
- Intermountain Medical Group Denver LLCBroomfield, CO · 568 clinicians
- Platte Valley Medical Group LLCBrighton, CO · 110 clinicians
Hospital affiliations
- Good Samaritan Medical Center LLCLafayette, CO
- Hca-Healthone DBA Swedish Medical CenterEnglewood, CO
- Intermountain Health Platte Valley HospitalBrighton, CO
- Saint Joseph HospitalDenver, CO
Industry payments (Open Payments)
- 2025$217.59 · 6 payments from 5 companies
- 2024$223.66 · 11 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genentech USA, Inc. | $106.90 | 2 |
| Genzyme Corporation | $29.63 | 1 |
| Sumitomo Pharma America, Inc. | $28.93 | 1 |
| Astrazeneca Pharmaceuticals LP | $26.85 | 1 |
| Glaxosmithkline, LLC. | $25.28 | 1 |
What the 2025 payments were for
- Food and Beverage$110.69 · 4 payments
- Education$106.90 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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