Rena Marie Nordeng Zimmermann, M.D.
NPI 1578758926ActiveIndividual· Family Medicine· Dickinson, ND
Family Medicine (M.D.) in Dickinson, North Dakota, trained at University of North Dakota School of Medicine (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $332,945 for 4,618 claims, against $93,601 paid for services in 2024. Merck Sharp & Dohme LLC reported $19.28 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1578758926 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Sep 10, 2007 |
| Last updated in NPPES | Aug 9, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | MR-0935 | ID |
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 - Family Practice (ND) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 229 |
|---|---|
| Services billed | 4,092 across 49 procedure codes |
| Paid by Medicare | $93,601 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,618 · 10,298 30-day fills |
|---|---|
| Patients | 341 |
| Total drug cost | $332,945 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of North Dakota School of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical groups
- Sanford BismarckBismarck, ND · 556 clinicians
- Omaha Therapy IncDickinson, ND · 65 clinicians
Hospital affiliations
- Chi St Alexius Health DickinsonDickinson, ND
- McKenzie County Healthcare Systems IncWatford City, ND
- Sanford Medical Center BismarckBismarck, ND
Industry payments (Open Payments)
- 2025$19.28 · 1 payment from 1 company
- 2024$56.09 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $19.28 | 1 |
What the 2025 payments were for
- Food and Beverage$19.28 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other family medicine physicians in Dickinson
- 1235391483
- 1447456686
- 1649367343
- 1700880796
- 1811428097
- 1386721066
- 1679524896
- 1689607418
- 1770682726
- 1386381374
- 1013071158
- 1205823846
All 19 family medicine physicians in Dickinson · All family medicine physicians in North Dakota