Zachary St Amant, CNP
NPI 1235717869ActiveIndividual· Nurse Practitioner, Family· N Chelmsford, MA
Nurse Practitioner, Family (CNP) with Chelmsford Family Practice, PC, practicing in N Chelmsford, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $101,004 for 939 claims, against $24,619 paid for services in 2024. Bayer Healthcare Pharmaceuticals Inc. reported $18.56 in payments in 2025, mostly food and beverage. Lists Lowell General Hospital as a hospital affiliation.
Overview
| NPI | 1235717869 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CNP |
| Sole proprietor | Yes |
| NPI issued | Apr 2, 2021 |
| Last updated in NPPES | Feb 14, 2025 |
| Certified by provider | Feb 14, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 2316526 | 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 | 163 |
|---|---|
| Services billed | 555 across 40 procedure codes |
| Paid by Medicare | $24,619 |
Part D prescriptions in 2024
| Prescriptions (claims) | 939 · 1,706 30-day fills |
|---|---|
| Patients | 245 |
| Total drug cost | $101,004 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Chelmsford Family Practice, PCNorth Chelmsford, MA · 11 clinicians
Hospital affiliation
- Lowell General HospitalLowell, MA
Industry payments (Open Payments)
- 2025$18.56 · 1 payment from 1 company
- 2024$40.40 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $18.56 | 1 |
What the 2025 payments were for
- Food and Beverage$18.56 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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