David J. Mast, MD
NPI 1912958331ActiveIndividual· Internal Medicine· Duluth, MN
Internal Medicine (MD) in Duluth, Minnesota, trained at University of Minnesota Medical School (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $602,986 for 7,340 claims, against $31,808 paid for services in 2024. Medtronic, Inc. reported $212.75 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1912958331 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 12, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 30485 | MN |
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 (MN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 146 |
|---|---|
| Services billed | 414 across 25 procedure codes |
| Paid by Medicare | $31,808 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,340 · 17,058 30-day fills |
|---|---|
| Patients | 538 |
| Total drug cost | $602,986 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of Minnesota Medical School |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Internal Medicine |
Medical groups
- St. Luke's Hospital of DuluthDuluth, MN · 405 clinicians
- Polinsky Medical Rehabilitation CenterDuluth, MN · 382 clinicians
Hospital affiliations
- Aspirus Lake View HospitalTwo Harbors, MN
- Essentia Health DuluthDuluth, MN
- St Lukes HospitalDuluth, MN
Other facilities
- Aspirus St. Luke's at Home - Home Care - DuluthHome health agency · Duluth, MN
Industry payments (Open Payments)
- 2024$212.75 · 2 payments from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $212.75 | 2 |
What the 2024 payments were for
- Food and Beverage$211.60 · 1 payment
- Travel and Lodging$1.15 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Duluth
- 1649895533
- 1699202028
- 1679191050
- 1023646023
- 1134656358
- 1154559763
- 1235690199
- 1245280601
- 1245676683
- 1255467841
- 1336420553
- 1386625192
All 65 internal medicine physicians in Duluth · All internal medicine physicians in Minnesota