Derek Lee, MD
NPI 1083235386ActiveIndividual· Internal Medicine· Sioux Falls, SD
Internal Medicine (MD) with Sanford Medical Center, practicing in Sioux Falls, South Dakota. Their prescriptions cost Medicare Part D more than their services did: $314,107 for 4,843 claims, against $33,605 paid for services in 2024. Dexcom, Inc. reported $19.19 in payments in 2025, mostly food and beverage. Lists Douglas County Memorial Hospital-Cah and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1083235386 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 28, 2020 |
| Last updated in NPPES | Aug 9, 2023 |
| Certified by provider | Aug 9, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 14500 | SD |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 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 | 262 |
|---|---|
| Services billed | 664 across 10 procedure codes |
| Paid by Medicare | $33,605 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,843 · 9,300 30-day fills |
|---|---|
| Patients | 528 |
| Total drug cost | $314,107 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Sanford Medical CenterSioux Falls, SD · 857 clinicians
Hospital affiliations
- Douglas County Memorial Hospital-CahArmour, SD
- Murray County Memorial HospitalSlayton, MN
- Sanford Canby Medical CenterCanby, MN
- Sanford Tracy Medical CenterTracy, MN
- Sanford Usd Medical CenterSioux Falls, SD
Other facilities
- Aveanna Home HealthHome health agency · Sioux Falls, SD
- Sanford Home HealthHome health agency · Sioux Falls, SD
- Sanford HospiceHospice · Sioux Falls, SD
Industry payments (Open Payments)
- 2025$19.19 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $19.19 | 1 |
What the 2025 payments were for
- Food and Beverage$19.19 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 124 internal medicine physicians in Sioux Falls · All internal medicine physicians in South Dakota