Zachary Aaron Pounders, DO
NPI 1841726965ActiveIndividual· Internal Medicine, Medical Oncology· Grand Rapids, MI
Internal Medicine, Medical Oncology (DO) 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: $3,282,710 for 1,040 claims, against $26,261 paid for services in 2024. Genzyme Corporation was the largest of 3 companies reporting payments in 2025, $256.61 in all, mostly food and beverage. Lists Corewell Health Gerber Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1841726965 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | May 10, 2017 |
| Last updated in NPPES | Mar 17, 2026 |
| Certified by provider | Mar 17, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 5101025500 | MI |
| Internal Medicine | 207R00000X | 51010225500 | MI |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 5101025500 | 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 - Hematology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 130 |
|---|---|
| Services billed | 348 across 15 procedure codes |
| Paid by Medicare | $26,261 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,040 · 1,306 30-day fills |
|---|---|
| Patients | 162 |
| Total drug cost | $3,282,710 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Hematology |
| 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 Pennock HospitalHastings, MI
- Corewell Health Reed City HospitalReed City, MI
- Spectrum HealthGrand Rapids, MI
- Spectrum Health United HospitalGreenville, MI
Industry payments (Open Payments)
- 2025$256.61 · 6 payments from 3 companies
- 2024$163.96 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $168.52 | 4 |
| Genentech USA, Inc. | $72.01 | 1 |
| Kyowa Kirin, Inc. | $16.08 | 1 |
What the 2025 payments were for
- Food and Beverage$256.61 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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