John M. Ruddy, MD
NPI 1235190497ActiveIndividual· Internal Medicine· Cambridge, MN
Internal Medicine (MD) in Cambridge, Minnesota, trained at University of Minnesota Medical School (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $1,157,880 for 11,923 claims, against $106,478 paid for services in 2024.
Overview
| NPI | 1235190497 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 29, 2006 |
| Last updated in NPPES | Mar 11, 2021 |
| Certified by provider | Mar 11, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 46279 | 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 | 323 |
|---|---|
| Services billed | 2,570 across 90 procedure codes |
| Paid by Medicare | $106,478 |
Part D prescriptions in 2024
| Prescriptions (claims) | 11,923 · 29,429 30-day fills |
|---|---|
| Patients | 718 |
| Total drug cost | $1,157,880 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Minnesota Medical School |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Allina Health SystemNew Ulm, MN · 3,842 clinicians
Hospital affiliations
- Abbott Northwestern HospitalMinneapolis, MN
- Cambridge Medical CenterCambridge, MN
- Mercy HospitalCoon Rapids, MN
- Welia HealthMora, MN
Other facilities
- Adara Home Health IncHome health agency · Buffalo, MN
- Allina Health Home HealthHome health agency · Minneapolis, MN
- Home Health Care IncHome health agency · Golden Valley, MN
- St Croix HospiceHospice · Oakdale, MN
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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