Zeyad Sako, MD
NPI 1588016448ActiveIndividual· Internal Medicine, Medical Oncology· Grand Rapids, MI
Internal Medicine, Medical Oncology (MD) with Spectrum Health Primary Care Partners and 3 other groups, practicing in Grand Rapids, Michigan. Their prescriptions cost Medicare Part D more than their services did: $852,048 for 512 claims, against $35,142 paid for services in 2024. Takeda Pharmaceuticals U.S.A., Inc. was the largest of 7 companies reporting payments in 2025, $4,539 in all, mostly consulting fees. Lists Corewell Health Gerber Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1588016448 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 4, 2016 |
| Last updated in NPPES | Aug 15, 2022 |
| Certified by provider | Aug 15, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 4301117480 | MI |
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 - Medical Oncology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 140 |
|---|---|
| Services billed | 381 across 12 procedure codes |
| Paid by Medicare | $35,142 |
Part D prescriptions in 2024
| Prescriptions (claims) | 512 · 584 30-day fills |
|---|---|
| Patients | 119 |
| Total drug cost | $852,048 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Medical Oncology |
| Secondary specialties | Hematology, Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Spectrum Health Primary Care PartnersGrand Rapids, MI · 2,294 clinicians
- Memorial Medical Center of West MichiganLudington, MI · 62 clinicians
- Newaygo County General Hospital AssociationFremont, MI · 59 clinicians
- Reed City Hospital CorporationReed City, MI · 32 clinicians
Hospital affiliations
- Corewell Health Gerber HospitalFremont, MI
- Corewell Health Ludington HospitalLudington, MI
- Corewell Health Reed City HospitalReed City, MI
- Spectrum HealthGrand Rapids, MI
- Spectrum Health United HospitalGreenville, MI
Industry payments (Open Payments)
- 2025$4,539 · 7 payments from 7 companies
- 2024$1,331 · 10 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. | $2,040 | 1 |
| Regeneron Pharmaceuticals, Inc. | $1,941 | 1 |
| E.R. Squibb & Sons, L.L.C. | $124.99 | 1 |
| Astrazeneca Pharmaceuticals LP | $124.99 | 1 |
| Genzyme Corporation | $117.00 | 1 |
What the 2025 payments were for
- Consulting Fee$3,981 · 2 payments
- Food and Beverage$558.43 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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