Alyssa Ann Duperry, APRN
NPI 1245994284ActiveIndividual· Nurse Practitioner, Family· Old Saybrook, CT
Nurse Practitioner, Family (APRN) with Mhs Primary Care, Inc., practicing in Old Saybrook, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $163,406 for 2,547 claims, against $31,975 paid for services in 2024. Lists Middlesex Hospital as a hospital affiliation.
Overview
| NPI | 1245994284 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APRN |
| Sole proprietor | No |
| NPI issued | Oct 26, 2021 |
| Last updated in NPPES | Nov 3, 2025 |
| Certified by provider | Nov 3, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 10017 | CT |
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 - Nurse Practitioner (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 133 |
|---|---|
| Services billed | 557 across 41 procedure codes |
| Paid by Medicare | $31,975 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,547 · 5,183 30-day fills |
|---|---|
| Patients | 335 |
| Total drug cost | $163,406 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Mhs Primary Care, Inc.Essex, CT · 180 clinicians
Hospital affiliation
- Middlesex HospitalMiddletown, CT
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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