Matthew R. Carns, M.D.
NPI 1346420965ActiveIndividual· Internal Medicine, Gastroenterology· Mankato, MN
Internal Medicine, Gastroenterology (M.D.) in Mankato, Minnesota, trained at Medical College of Wisconsin (class of 2005). Their prescriptions cost Medicare Part D more than their services did: $1,337,583 for 1,838 claims, against $112,499 paid for services in 2024. Pharmacosmos Therapeutics Inc. was the largest of 6 companies reporting payments in 2025, $127.00 in all, mostly food and beverage.
Overview
| NPI | 1346420965 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 12, 2007 |
| Last updated in NPPES | Jul 10, 2020 |
| Certified by provider | Jul 10, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 54904 | MN |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Gastroenterology (MN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 482 |
|---|---|
| Services billed | 2,441 across 70 procedure codes |
| Paid by Medicare | $112,499 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,838 · 2,543 30-day fills |
|---|---|
| Patients | 706 |
| Total drug cost | $1,337,583 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Mankato Clinic LtdMankato, MN · 242 clinicians
Hospital affiliations
- Abbott Northwestern HospitalMinneapolis, MN
- Mayo Clinic Health System - MankatoMankato, MN
Industry payments (Open Payments)
- 2025$127.00 · 7 payments from 6 companies
- 2024$372.54 · 8 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pharmacosmos Therapeutics Inc. | $35.80 | 1 |
| Lilly USA, LLC | $33.88 | 2 |
| Qol Medical, LLC | $20.17 | 1 |
| Pfizer Inc. | $13.87 | 1 |
| Novo Nordisk Inc | $13.53 | 1 |
What the 2025 payments were for
- Food and Beverage$127.00 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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