NPPES file of Aug 9, 2026

Alexsis Walter, CNP

Women's Health Nurse Practitioner · Andover, MA

Alexsis Walter, CNP is a women's health nurse practitioner with a practice address in Andover, Massachusetts, and NPI 1073981155, issued on Sep 8, 2015. Check the license (Massachusetts RN2294906, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1073981155
Name
Alexsis Walter
Credential
CNP
Primary taxonomy
Women's Health Nurse Practitioner 363LW0102X
License number
RN2294906 MA
Self-reported in NPPES; status is on the state search
Practice location
323 Lowell St, Andover, MA 01810
Phone
(978) 475-2731
Enumerated
Sep 8, 2015
Record last updated
Sep 8, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20151229000383); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 323 Lowell St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Steven Andriola, M.D.Orthopaedic Surgery Physician1174584833
  2. Melissa Bergeron, P.A.Medical Physician Assistant1356485379
  3. Matthew Carlson, PA-CSurgical Physician Assistant1992028583
  4. Madhavi Challagulla, MDInternal Medicine Physician1023132800
  5. Kelly Czworka, NPNurse Practitioner1104984251
  6. Charae D'Ambra, N.P.Pediatric Nurse Practitioner1912199217

Verify Alexsis Walter in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN2294906
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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57% fewer Medicare Part D claims than the average women's health nurse practitioner in 2024

94 Medicare Part D claims for 29 beneficiaries, against an average of 217 among the 3,809 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Alexsis Walter94
  2. Specialty average217

Most prescribed

  1. Estradiol18 claims
  2. Valacyclovir16 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: $127.71

6 payments; by number, the most common kind was food and beverage; the largest payer was Exeltis, USA Inc. The 3,574 providers of this specialty with any payment received $426.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alexsis Walter$127.71
  2. Specialty average$426.02

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

  1. Andover Obstetrics And Gynecological Associates PCAndover, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Alexsis Walter among 329 women's health nurse practitioner records in Massachusetts

Alexsis Walter, CNP is one of 329 women's health nurse practitioner records with a practice address in Massachusetts. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 56% of them.

  • NPI issued2015 · 56% of these records are older, 41% newer
  • In a Medicare fileYes · 60% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2015 · median 2015 among the 139 with a school on file
  • Record last updated2015 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LW0102X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Women's Health Nurse Practitioner providers in Massachusetts

There are 329 women's health nurse practitioner records in Massachusetts.

The 8 women's health nurse practitioner records with the nearest ZIP codes

  1. Bridget Mackenzie, WHNP-BCAndover, MA 018101841809332
  2. Shannon GilesBurlington, MA 018051679143614
  3. Corinne Prigo, NPBurlington, MA 018051023331741
  4. Jennifer Arruda, NPBurlington, MA 018031417505728
  5. Meghan Bride, MS, RNCBurlington, MA 018031710062161
  6. Sara Ellison, NPBurlington, MA 018031356658769
  7. Annie Moore, NPBurlington, MA 018031164799797
  8. Anna Risman, WHNP-BCBurlington, MA 018031588188585

Common questions

What is Alexsis Walter, CNP's NPI number?

Alexsis Walter, CNP's National Provider Identifier (NPI) is 1073981155, issued on Sep 8, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Alexsis Walter, CNP located?

The NPPES record lists a practice address at 323 Lowell St, Andover, MA, 01810. Phone: (978) 475-2731. Providers update this record themselves, so call before visiting.

How can I verify Alexsis Walter, CNP's license?

NPPES lists Massachusetts license number RN2294906, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Alexsis Walter, CNP prescribe under Medicare Part D?

In 2024, Alexsis Walter, CNP had 94 Medicare Part D claims for 29 beneficiaries; the average among women's health nurse practitioner prescribers was 217. 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.