Grant Harper Shumaker, MD
NPI 1841265139ActiveIndividual· Neurological Surgery· Dakota Dunes, SD
Neurological Surgery (MD) in Dakota Dunes, South Dakota, trained at Yale University School of Medicine (class of 1991). 218 Medicare patients in 2024, $170,595 paid; all of their 598 Part D prescriptions were generic. Biocomposites Inc reported $107.43 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1841265139 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 21, 2006 |
| Last updated in NPPES | Aug 6, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | 5770 | SD |
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 - Neurosurgery (IA); Practitioner - Neurosurgery (SD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 218 |
|---|---|
| Services billed | 1,386 across 105 procedure codes |
| Paid by Medicare | $170,595 |
Part D prescriptions in 2024
| Prescriptions (claims) | 598 · 629 30-day fills |
|---|---|
| Patients | 158 |
| Total drug cost | $4,832 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Yale University School of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Neurosurgery |
Medical groups
- Sports Rehab and Professional Therapy Associates IncStorm Lake, IA · 132 clinicians
- Cnos PCSioux City, IA · 99 clinicians
Hospital affiliations
- Buena Vista Regional Medical CenterStorm Lake, IA
- Dunes Surgical HospitalDakota Dunes, SD
- Floyd Valley HealthcareLe Mars, IA
- Sioux Center HealthSioux Center, IA
- St Lukes Regional Medical CenterSioux City, IA
Industry payments (Open Payments)
- 2025$107.43 · 1 payment from 1 company
- 2024$283.96 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Biocomposites Inc | $107.43 | 1 |
What the 2025 payments were for
- Food and Beverage$107.43 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Neurological Surgery providers in Dakota Dunes
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