Joseph Primo Mazzoncini Jr., M.D.
NPI 1023169604ActiveIndividual· Emergency Medicine· Everett, WA
Emergency Medicine (M.D.) in Everett, Washington, trained at University of Washington School of Medicine (class of 2005). 248 Medicare patients in 2024, $36,338 paid; nearly all of their 153 Part D prescriptions were generic (95%).
Overview
| NPI | 1023169604 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 12, 2007 |
| Last updated in NPPES | May 9, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | MD60248557 | 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 | 248 |
|---|---|
| Services billed | 397 across 22 procedure codes |
| Paid by Medicare | $36,338 |
Part D prescriptions in 2024
| Prescriptions (claims) | 153 · 157 30-day fills |
|---|---|
| Patients | 103 |
| Total drug cost | $2,470 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | University of Washington School of Medicine |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Emergency Medicine |
Medical group
- Evergreen Emergency Services PsMonroe, WA · 47 clinicians
Hospital affiliation
- Evergreenhealth Medical CenterKirkland, WA
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 51 emergency medicine physicians in Everett · All emergency medicine physicians in Washington