Zachary St Amant, CNP
Family Nurse Practitioner · N Chelmsford, MA
Zachary St Amant, CNP is a family nurse practitioner with a practice address in N Chelmsford, Massachusetts, and NPI 1235717869, issued on Apr 2, 2021. Check the license (Massachusetts 2316526, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Zachary St Amant
- Credential
- CNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 2316526 MA
Self-reported in NPPES; status is on the state search - Practice location
- 10 Adams St, N Chelmsford, MA 01863
- Phone
- (978) 251-3159
- Enumerated
- Apr 2, 2021
- Record last updated
- Feb 14, 2025
- Medicare enrollment
- Enrolled (PECOS I20210707003920); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 4,724 in Massachusetts → Look up another NPI →
Also registered at 10 Adams St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dawn Batchelder, PA-CPhysician Assistant1760451066
- Jeffrey Byrne, M.D.Family Medicine Physician1346209442
- Susan Munroe, R.N., B.C., F.N.P.Nurse Practitioner1104885219
- Dan Nguyen, M.D.Family Medicine Physician1235198334
- Tricia Scott, M.D.Family Medicine Physician1013976117
- Lisa Zachert, PA-CPhysician Assistant1730158023
Verify Zachary St Amant in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 2316526Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% fewer Medicare Part D claims than the average family nurse practitioner in 2024
939 Medicare Part D claims for 245 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Atorvastatin Calcium75 claims
- Amlodipine Besylate42 claims
- Lisinopril38 claims
- Losartan Potassium32 claims
- Simvastatin30 claims
- Trulicity29 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $40.40
2 payments; by number, the most common kind was food and beverage; the largest payer was Hologic Sales and Service, LLC. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Chelmsford Family Practice, PCNorth Chelmsford, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zachary St Amant among 4,724 family nurse practitioner records in Massachusetts
Zachary St Amant, CNP is one of 4,724 family nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 67% of them.
- NPI issued2021 · 67% of these records are older, 28% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2021 · median 2019 among the 2,704 with a school on file
- Record last updated2025 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 family nurse practitioner records list a practice address in N Chelmsford
They are 5 of the 66 NPPES records with a practice address in N Chelmsford, and 4,724 family nurse practitioner records in Massachusetts.
All 4,724 in Massachusetts → Every provider in N Chelmsford → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Judith Bain, NPN Chelmsford, MA 018631609952035
- Melissa Barber, NPNorth Chelmsford, MA 018631659772911
- Jayme Cerullo, NPN Chelmsford, MA 018631689711871
- Rylee Coutu, FNP-BCNorth Chelmsford, MA 018631912646118
- Lindsey Cucchiara, MSN RN FNP-CNorth Chelmsford, MA 018631669104204
- Carol Gagne, NPN Chelmsford, MA 018631720189384
- Allegra Montecalvo, APRN, FNPNorth Chelmsford, MA 018631528795002
- Annet Naiga, FNP-CNorth Chelmsford, MA 018631154209302
Common questions
What is Zachary St Amant, CNP's NPI number?
Zachary St Amant, CNP's National Provider Identifier (NPI) is 1235717869, issued on Apr 2, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Zachary St Amant, CNP located?
The NPPES record lists a practice address at 10 Adams St, N Chelmsford, MA, 01863. Phone: (978) 251-3159. Providers update this record themselves, so call before visiting.
How can I verify Zachary St Amant, CNP's license?
NPPES lists Massachusetts license number 2316526, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Zachary St Amant, CNP prescribe under Medicare Part D?
In 2024, Zachary St Amant, CNP had 939 Medicare Part D claims for 245 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.