Derek J. Ferrie, MD
NPI 1013962919ActiveIndividual· Internal Medicine· Mitchell, SD
Internal Medicine (MD) in Mitchell, South Dakota, trained at Sanford School of Medicine of University of South Dakota (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $391,225 for 8,271 claims, against $96,071 paid for services in 2024. Pfizer Inc. was the largest of 6 companies reporting payments in 2025, $243.12 in all, mostly food and beverage.
Overview
| NPI | 1013962919 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 23, 2006 |
| Last updated in NPPES | Nov 2, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 4729 | 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 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 - Internal Medicine (SD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 229 |
|---|---|
| Services billed | 2,907 across 52 procedure codes |
| Paid by Medicare | $96,071 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,271 · 14,527 30-day fills |
|---|---|
| Patients | 357 |
| Total drug cost | $391,225 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Sanford School of Medicine of University of South Dakota |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Internal Medicine |
Medical group
- Sanford Medical CenterSioux Falls, SD · 857 clinicians
Hospital affiliations
- Avera Queen of PeaceMitchell, SD
- Sanford Usd Medical CenterSioux Falls, SD
Other facilities
- Avera @ HomeHome health agency · Mitchell, SD
Industry payments (Open Payments)
- 2025$243.12 · 15 payments from 6 companies
- 2024$524.17 · 31 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $67.00 | 4 |
| Corium, LLC | $53.71 | 3 |
| Phadia US Inc. | $42.30 | 3 |
| Lilly USA, LLC | $34.30 | 2 |
| Merck Sharp & Dohme LLC | $31.28 | 2 |
What the 2025 payments were for
- Food and Beverage$243.12 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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