Steven Sonnamaker, MD
NPI 1003345323ActiveIndividual· Emergency Medicine· Bismarck, ND
Emergency Medicine (MD) in Bismarck, North Dakota, licensed in ND and MI, with an NPI issued in June 2017. 283 Medicare patients in 2024, $39,381 paid; nearly all of their 188 Part D prescriptions were generic (90%). Abbvie Inc. reported $19.62 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1003345323 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 9, 2017 |
| Last updated in NPPES | May 3, 2024 |
| Certified by provider | May 3, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 16394 | ND |
| Emergency Medicine | 207P00000X | 4301112415 | MI |
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 - Emergency Medicine (ND) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 283 |
|---|---|
| Services billed | 433 across 18 procedure codes |
| Paid by Medicare | $39,381 |
Part D prescriptions in 2024
| Prescriptions (claims) | 188 · 188 30-day fills |
|---|---|
| Patients | 132 |
| Total drug cost | $6,039 |
| Generic share | 90% of claims |
Industry payments (Open Payments)
- 2025$19.62 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $19.62 | 1 |
What the 2025 payments were for
- Food and Beverage$19.62 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other emergency medicine physicians in Bismarck
- 1215217849
- 1235541756
- 1598788523
- 1780629055
- 1245437730
- 1316292527
- 1316437452
- 1598010316
- 1609989268
- 1669636205
- 1932366143
- 1184731952
All 30 emergency medicine physicians in Bismarck · All emergency medicine physicians in North Dakota