NPPES file of Aug 9, 2026

Melissa Marie Esau, FNP-C

Family Nurse Practitioner · Acton, MA

Melissa Marie Esau, FNP-C is a family nurse practitioner with a practice address in Acton, Massachusetts, and NPI 1861845521, issued on Jul 18, 2016. Check the license (Massachusetts RN2285160, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861845521
Name
Melissa Marie Esau
Credential
FNP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
RN2285160 MA
Self-reported in NPPES; status is on the state search
Practice location
344 Great RD, Acton, MA 01720
Phone
(978) 264-9130
Enumerated
Jul 18, 2016
Record last updated
Jul 27, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20161206001465); 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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8 nearest family nurse practitioner records → All 4,724 in Massachusetts → Look up another NPI →

Also registered at 344 Great RD

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

  1. Catherine HelinskiFamily Nurse Practitioner1609449990
  2. Elisha Hisoler, FNPFamily Nurse Practitioner1407289895
  3. Kaitlin Johnson, FNPFamily Nurse Practitioner1053730853
  4. Susan Santis-Neal, RPHPharmacist1508469768
  5. Joan TianoFamily Nurse Practitioner1831716901
  6. Leah Walsh, PHARMDPharmacist1194328658

Verify Melissa Marie Esau 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 RN2285160    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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Bills Medicare through one group practice

  1. Minuteclinic Diagnostic OF Massachusetts, LLCActon, MA

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

Melissa Marie Esau among 4,724 family nurse practitioner records in Massachusetts

Melissa Marie Esau, FNP-C 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 2016, is newer than 39% of them.

  • NPI issued2016 · 39% of these records are older, 56% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2016 · median 2019 among the 2,704 with a school on file
  • Record last updated2021 · 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).

14 family nurse practitioner records list a practice address in Acton

They are 14 of the 556 NPPES records with a practice address in Acton, and 4,724 family nurse practitioner records in Massachusetts.

All 4,724 in Massachusetts → Every provider in Acton → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Elizabeth Burbage, RNActon, MA 017201467108548
  2. Laura Carvajal, FNP-BCActon, MA 017201073297107
  3. Emily Drazen, NPActon, MA 017201225573900
  4. Catherine HelinskiActon, MA 017201609449990
  5. Elisha Hisoler, FNPActon, MA 017201407289895
  6. Kaitlin Johnson, FNPActon, MA 017201053730853
  7. Chelsie McCarthy, FNPActon, MA 017201629419536
  8. Jill Salamon, ARNPActon, MA 017201124638507

Common questions

What is Melissa Marie Esau, FNP-C's NPI number?

Melissa Marie Esau, FNP-C's National Provider Identifier (NPI) is 1861845521, issued on Jul 18, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Melissa Marie Esau, FNP-C located?

The NPPES record lists a practice address at 344 Great RD, Acton, MA, 01720. Phone: (978) 264-9130. Providers update this record themselves, so call before visiting.

How can I verify Melissa Marie Esau, FNP-C's license?

NPPES lists Massachusetts license number RN2285160, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.