Ryan Michael Zimmermann
NPI 1447456686ActiveIndividual· Family Medicine· Dickinson, ND
Family Medicine 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: $532,624 for 5,026 claims, against $110,941 paid for services in 2024. Merck Sharp & Dohme LLC reported $19.28 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1447456686 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | Jun 25, 2007 |
| Last updated in NPPES | Sep 16, 2020 |
| Certified by provider | Sep 16, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | MR0936 | ID |
| Family Medicine | 207Q00000X | MR 0936 | 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 | 311 |
|---|---|
| Services billed | 3,462 across 53 procedure codes |
| Paid by Medicare | $110,941 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,026 · 10,971 30-day fills |
|---|---|
| Patients | 447 |
| Total drug cost | $532,624 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | University of North Dakota School of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Family Practice |
Medical groups
- Sanford BismarckBismarck, ND · 556 clinicians
- Omaha Therapy IncDickinson, ND · 65 clinicians
Hospital affiliations
- Chi St Alexius Health DickinsonDickinson, ND
- Sanford Medical Center BismarckBismarck, ND
Industry payments (Open Payments)
- 2025$19.28 · 1 payment from 1 company
- 2024$104.02 · 5 payments from 4 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
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All 19 family medicine physicians in Dickinson · All family medicine physicians in North Dakota