John Frederick Stock, M.D.
NPI 1932207545ActiveIndividual· Internal Medicine· Morris, MN
Internal Medicine (M.D.) in Morris, Minnesota, trained at University of Minnesota Medical School (class of 1972). Their prescriptions cost Medicare Part D more than their services did: $763,360 for 4,996 claims, against $435.37 paid for services in 2024. Abbott Laboratories reported $45.20 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1932207545 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 20, 2006 |
| Last updated in NPPES | Feb 17, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 20829 | 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 | 17 |
|---|---|
| Services billed | 425 across 7 procedure codes |
| Paid by Medicare | $435.37 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,996 · 9,997 30-day fills |
|---|---|
| Patients | 313 |
| Total drug cost | $763,360 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | University of Minnesota Medical School |
|---|---|
| Graduation year | 1972 |
| Medicare specialty | Internal Medicine |
Medical groups
- Lake Region Healthcare CorporationEvansville, MN · 105 clinicians
- Stevens Community Medical Center IncMorris, MN · 75 clinicians
Hospital affiliations
- Abbott Northwestern HospitalMinneapolis, MN
- Prairie Ridge Hospital and Health ServicesElbow Lake, MN
- Stevens Community Medical Center IncMorris, MN
Other facilities
- Vivie Home HealthHome health agency · Alexandria, MN
- West Wind VillageNursing home · Morris, MN
Industry payments (Open Payments)
- 2025$45.20 · 2 payments from 1 company
- 2024$117.63 · 7 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $45.20 | 2 |
What the 2025 payments were for
- Food and Beverage$45.20 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records