Esther Mackenzie, CNP
NPI 1942751946ActiveIndividual· Nurse Practitioner· Lynn, MA
Nurse Practitioner (CNP) with Mass General Brigham Medical Group Northern Massachusetts Inc, practicing in Lynn, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $127,216 for 2,317 claims, against $48,034 paid for services in 2024. Lists Massachusetts General Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1942751946 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CNP |
| Sole proprietor | No |
| NPI issued | Oct 14, 2016 |
| Last updated in NPPES | Oct 14, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | RN2265275 | 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 - Nurse Practitioner (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 360 |
|---|---|
| Services billed | 757 across 34 procedure codes |
| Paid by Medicare | $48,034 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,317 · 4,418 30-day fills |
|---|---|
| Patients | 683 |
| Total drug cost | $127,216 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Mass General Brigham Medical Group Northern Massachusetts IncDanvers, MA · 827 clinicians
Hospital affiliations
- Massachusetts General HospitalBoston, MA
- North Shore Medical Center -Salem, MA
Other facilities
- Mass General Brigham Home Care, IncHome health agency · Newton, MA
- Spaulding Rehabilitation HospitalInpatient rehabilitation facility · Charlestown, MA
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 31 nurse practitioners in Lynn · All nurse practitioners in Massachusetts