Arash Ash Alizadeh, MD, PHD
NPI 1295824423ActiveIndividual· Internal Medicine, Medical Oncology· Stanford, CA
Internal Medicine, Medical Oncology (MD, PHD) in Stanford, California, trained at Stanford University School of Medicine (class of 2003). Mostly services rather than prescriptions: Medicare paid $20,853 for 70 patients in 2024, with only 29 Part D claims. Astrazeneca Pharmaceuticals LP was the largest of 2 companies reporting payments in 2025, $5,903 in all, mostly consulting fees.
Overview
| NPI | 1295824423 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, PHD |
| Sole proprietor | No |
| NPI issued | Oct 12, 2006 |
| Last updated in NPPES | Apr 12, 2024 |
| Certified by provider | Apr 12, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | A92354 | CA |
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 - Medical Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 70 |
|---|---|
| Services billed | 165 across 4 procedure codes |
| Paid by Medicare | $20,853 |
Part D prescriptions in 2024
| Prescriptions (claims) | 29 · 57 30-day fills |
|---|---|
| Total drug cost | $524.72 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Medical Oncology |
| Secondary specialties | Hematology/Oncology, Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliations
- Enloe HealthChico, CA
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$5,903 · 10 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $5,533 | 6 |
| Taiho Oncology, Inc. | $369.54 | 4 |
What the 2025 payments were for
- Consulting Fee$4,920 · 1 payment
- Compensation for serving as faculty or as a speaker for a medical education program$679.35 · 2 payments
- Travel and Lodging$244.49 · 6 payments
- Food and Beverage$59.07 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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