Marissa Hahn, MD
NPI 1831518489ActiveIndividual· Emergency Medicine· Issaquah, WA
Emergency Medicine (MD) in Issaquah, Washington, trained at University of Washington School of Medicine (class of 2014). Mostly services rather than prescriptions: Medicare paid $3,512 for 20 patients in 2024, with only 24 Part D claims.
Overview
| NPI | 1831518489 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 10, 2014 |
| Last updated in NPPES | Apr 8, 2021 |
| Certified by provider | Apr 8, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 60757309 | WA |
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 (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 20 |
|---|---|
| Services billed | 126 across 24 procedure codes |
| Paid by Medicare | $3,512 |
Part D prescriptions in 2024
| Prescriptions (claims) | 24 · 24 30-day fills |
|---|---|
| Patients | 15 |
| Total drug cost | $221.03 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | University of Washington School of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Emergency Medicine |
| Secondary specialties | Sports Medicine |
Medical group
- Kaiser Foundation Health Plan of WashingtonBellevue, WA · 1,526 clinicians
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 22 emergency medicine physicians in Issaquah · All emergency medicine physicians in Washington