Casmiar I. Nwaigwe, MD
NPI 1902832041ActiveIndividual· Internal Medicine, Infectious Disease· Minot, ND
Internal Medicine, Infectious Disease (MD) with Trinity Health, practicing in Minot, North Dakota. Their prescriptions cost Medicare Part D more than their services did: $627,078 for 1,929 claims, against $116,163 paid for services in 2024. Melinta Therapeutics, LLC was the largest of 3 companies reporting payments in 2025, $20,947 in all, mostly speaking and faculty fees. Lists Chi St Alexius Health Williston and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1902832041 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 23, 2006 |
| Last updated in NPPES | Sep 24, 2025 |
| Certified by provider | Sep 24, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | 10703 | ND |
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 - Infectious Disease (ND) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 352 |
|---|---|
| Services billed | 1,600 across 24 procedure codes |
| Paid by Medicare | $116,163 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,929 · 1,978 30-day fills |
|---|---|
| Patients | 1,156 |
| Total drug cost | $627,078 |
| Generic share | 24% of claims |
Education and affiliations
| Graduation year | 1991 |
|---|---|
| Medicare specialty | Infectious Disease |
| Secondary specialties | Internal Medicine |
Medical group
- Trinity HealthMinot, ND · 290 clinicians
Hospital affiliations
- Chi St Alexius Health WillistonWilliston, ND
- Heart of America Medical CenterRugby, ND
- St Andrew's HospitalBottineau, ND
- St Luke's HospitalCrosby, ND
- Trinity HospitalsMinot, ND
Industry payments (Open Payments)
- 2025$20,947 · 46 payments from 3 companies
- 2024$6,395 · 27 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Melinta Therapeutics, LLC | $20,916 | 44 |
| Novartis Pharmaceuticals Corporation | $25.65 | 1 |
| Kerecis Limited | $6.23 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$15,000 · 5 payments
- Travel and Lodging$5,264 · 21 payments
- Food and Beverage$683.27 · 20 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records