Allison Ensign Larusso, MD
NPI 1396728333ActiveIndividual· Emergency Medicine· Worcester, MA
Emergency Medicine (MD) in Worcester, Massachusetts, trained at University of Massachusetts Medical School (class of 1999). In 2024 Medicare paid $31,022 for 267 patients, and Part D covered 98 of their prescriptions, 89% of them generic. Mayne Pharma Commercial LLC reported $64.08 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1396728333 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 23, 2005 |
| Last updated in NPPES | Dec 8, 2023 |
| Certified by provider | Dec 8, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 213743 | MA |
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 (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 267 |
|---|---|
| Services billed | 302 across 15 procedure codes |
| Paid by Medicare | $31,022 |
Part D prescriptions in 2024
| Prescriptions (claims) | 98 · 98 30-day fills |
|---|---|
| Patients | 80 |
| Total drug cost | $1,386 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of Massachusetts Medical School |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Emergency Medicine |
Medical group
- Umass Memorial Medical Group IncWorcester, MA · 2,516 clinicians
Hospital affiliations
- Marlborough HospitalMarlborough, MA
- Umass Memorial Healthalliance HospitalsLeominster, MA
- Umass Memorial Medical Center/University CampusWorcester, MA
Industry payments (Open Payments)
- 2025$64.08 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mayne Pharma Commercial LLC | $64.08 | 2 |
What the 2025 payments were for
- Food and Beverage$64.08 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 216 emergency medicine physicians in Worcester · All emergency medicine physicians in Massachusetts