Gregory Obst, MD
NPI 1629139548ActiveIndividual· Emergency Medicine· Wausau, WI
Emergency Medicine (MD) in Wausau, Wisconsin, licensed in WI, with an NPI issued in December 2006. 547 Medicare patients in 2024, $65,934 paid; nearly all of their 196 Part D prescriptions were generic (95%).
Overview
| NPI | 1629139548 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 13, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 35317 | WI |
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 (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 547 |
|---|---|
| Services billed | 807 across 32 procedure codes |
| Paid by Medicare | $65,934 |
Part D prescriptions in 2024
| Prescriptions (claims) | 196 · 196 30-day fills |
|---|---|
| Patients | 126 |
| Total drug cost | $2,609 |
| Generic share | 95% of claims |
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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All 18 emergency medicine physicians in Wausau · All emergency medicine physicians in Wisconsin