Michael S. Humeniuk, MD
NPI 1942594155ActiveIndividual· Internal Medicine, Hematology & Oncology· Spartanburg, SC
Internal Medicine, Hematology & Oncology (MD) in Spartanburg, South Carolina, trained at Medical University of South Carolina College of Medicine (class of 2011). Their prescriptions cost Medicare Part D more than their services did: $4,157,316 for 3,300 claims, against $142,450 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 30 companies reporting payments in 2025, $2,325 in all, mostly food and beverage.
Overview
| NPI | 1942594155 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 6, 2011 |
| Last updated in NPPES | Jan 20, 2021 |
| Certified by provider | Jan 20, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 40462 | SC |
| Internal Medicine | 207R00000X | 55320 | MN |
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 - Internal Medicine (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 573 |
|---|---|
| Services billed | 1,751 across 19 procedure codes |
| Paid by Medicare | $142,450 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,300 · 4,196 30-day fills |
|---|---|
| Patients | 456 |
| Total drug cost | $4,157,316 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Medical University of South Carolina College of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Hematology, Medical Oncology |
Medical group
- Spartanburg Medical CenterSpartanburg, SC · 1,078 clinicians
Hospital affiliations
- Cherokee Medical CenterGaffney, SC
- Pelham Medical CenterGreer, SC
- Spartanburg Medical CenterSpartanburg, SC
- Union Medical CenterUnion, SC
Other facilities
- Spartanburg Regional Home HealthHome health agency · Spartanburg, SC
Industry payments (Open Payments)
- 2025$2,325 · 92 payments from 30 companies
- 2024$1,367 · 63 payments from 23 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $199.16 | 11 |
| Daiichi Sankyo Inc. | $195.28 | 8 |
| Janssen Biotech, Inc. | $181.28 | 11 |
| Pfizer Inc. | $180.08 | 9 |
| Dendreon Pharmaceuticals LLC | $162.99 | 2 |
What the 2025 payments were for
- Food and Beverage$2,325 · 92 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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